Alberta 2011 Annual Progress Report · Web viewEach circuit will be energized at 230 kV. ″ Tracy-Delta Mendota Canal-California Aqueduct Intertie Project 69 10/2006 Project on hold

LIST OF ANNUAL PROGRESS REPORTS TO WECC - 2011NORTHWEST POWER POOL AREA

CONTENTS AND REMARKS

Name of ProjectGenMW

Transmission kV Date

No. ofpages

TransferCapability Phase

Power Transient Post Transient OneTables Flow Stability Stability Lines Maps

Request Copy of Report From

Edmonton Region 240 kV Line Upgrades – P786

240 2013 .3 The objectives of this project are to address overloads on the existing 240 kV lines in the Edmonton region (“debottlenecking”) and to increase transfer capability on the transmission paths out of the area into northeast Alberta. The project consists of re-building, re-stringing and re-terminating the existing 240 kV lines in the Edmonton region and adding a phase shifting transformer at Dover substation near Fort McMurray. The need was approved by the Alberta Utilities Commission in February 2009, and facility applications are under review by the Alberta Utilities Commission.

Ata Rehman(403) 539-2742

(AESO)

9L66 240 kV Line Relocation – P943

240 2010 .1 Relocate 240 kV line for coal mine expansion. “

Northwest Alberta Transmission System Reinforcement

240 2011-2012 .5 This project involves adding new transmission facilities listed below and is required to maintain reliability of supply and to meet load growth in the northwest Alberta. The need for the entire project has been approved by the provincial regulatory board.

Brintnell to Wesley Creek 240 kV Line – This sub-project involves building a new 240 kV line (145 mi) with 2 x 477 MCM conductors per phase (summer/winter capacity of 550/702 MVA respectively). This new line was energized December 18, 2009.

Wesley Creek to Hotchkiss 144 kV Line – This sub-project involves building a new 144 kV double circuit line (83 mi) with each circuit with 2 x 477 MCM conductors/phase (summer/winter capacity – 330/422 MVA) and is planned to be completed in 2011.

Sulphur Point to High Level 144 kV Line – This sub-project involves building a new 144 kV single circuit line (65 mi) with 1 x 266.8 MCM conductors/phase (summer/winter capacity – 114/146 MVA) and is planned to be completed in 2012.

Ring Creek Arcenceil (near Rainbow Lake) 144 kV Line – This sub-project involves building a new 144 kV single circuit line (70 mi) with 1 x 266.8 MCM conductors/phase (summer/winter capacity – 114/146 MVA) and is planned to be completed in 2012.

Reactive Power Support in Northwest Alberta – This sub-project involves adding smaller cap banks at various locations to a total of 180 MVARs in northwest Alberta. In addition, two small SVCs will be added as follows: 30 MVAR @ Cranberry Lake; -5 + 30 MVAR at High Level. This sub-project is planned to be completed in 2012.

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9L15 termination into Livock 240 2015 .2 This project involves the following developments to provide additional support to the NortWest region of Alberta and increase flows inout of the Fort McMurray area;

15 km of 240 kV line (Brintnell to Livock)Remove 9L15 termination from BrintnellTerminate 9L15 at Livock (brkrs only, Livock should already have the

diameter)

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Northwest Alberta Transmission System Reinforcement

240 2015-2017 .3 This project involves the following 240kV and 138kV reinforcements to the NorthWest region of Alberta;

Bickerdick to Little Smoky- The double circuit 240kV line will help to eliminate the voltage collape and overloaded problem in northwest; it is assumed to be in the service by 2015

New Wimbley 240kV substation New Double Circuit 240kV line from Little Smokey to Wimbley.

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Southeast Transmission Reinforcement (SETR)

240/138 2011 .4 SETR is a system upgrade to accommodate continued growth in wind generation in the southern Alberta region. This project was approved in July 2008 and is under construction.

138 kV and 240 kV lines and substations upgrade in Lethbridge, Brooks and Empress areas.

Construction of a new 138/240 kV 2 x 200 MVA Cypress Substation.Salvage of 2 x 200 MVA 138/240 kV auto-transformers and replacement by

2 x 400 MVA 138/240 kV auto-transformers.Addition of a third 138/240 kV 200 MVA auto-transformer at North

Lethbridge.Addition of capacitor banks at Tilley and McNeill.

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Yellowhead Area Transmission Development – P671

240/138 2011 .1 138 kV and 240 kV development in the area to support future load growth. “

Livock 240/144 kV Connection – P834

240/144 2011 .1 Development of Livock 240/144 kV connection to support load growth in the Fort McMurray area near Brintnell station.

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Fidler 312S 240/138 kV Interconnection – P936

240/138 2012 .2 AESO is preparing needs identification document (NID) application and transmission facility owner is preparing facility application (FA) targeted to file with the Alberta Utilities Commission (AUC) in Q2 2010. This system upgrade is to accommodate continued growth in wind generation in the southern Alberta region. The target in service date is 2011 with the following major components:

New 240/138 kV Fidler Substation138 kV line re-location

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NorthEast Fort McMurray 240 kV Loop – P791

240 2012 .1 Development of 240 kV loop to reinforce the north Fort McMurray area to support load growth.

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Halkirk 1 Wind Project - P723

150 240 2012 .1 Capital Power intends to connect a 150MW WTG facility into the Alberta electric grid system via a new 240kV Transmission line by mid 2012

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ENMAX Shepard Energy Centre – P719

800 240 2015 .2 This project requires 240 kV transmission development to accommodate the connection of the 800 MW combined cycle natural gas fired power station in the City of Calgary. The project consists of a new 240 kV switching station with underground cables connecting the switching station to the AIES. Additional 240 kV upgrades are required at East Calgary, Janet and associated lines between the

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two substations. ENMAX has a target in service date in 2015 for power export with transmission facilities in place to accommodate site load by August 2013.

Greengate Blackspring Ridge Wind Farm – P728

300 Q4 2012 .2 This project requires 240 kV transmission development to accommodate the connection of the 300 MW wind farm in southern Alberta. The project consists of a 240 kV three breaker ring tap to existing 924L.

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Naturener Wild Rose Wind Farm 1 – P479

200 2013 .2 This project requires the development of approximately 25 km of 240 kV single circuit line from Bowmanton to Cypress to connect this 200 MW wind farm. The needs identification document (NID) is anticipated to be filed in Q2 2010 with a projected in service date of 2013.

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Naturener Wild Rose Wind Farm 2 – P693

200 2013 .2 This project requires the development of 240 kV single circuit line and expansion of the collector substation to connect this 200 MW wind farm. The needs identification document (NID) is anticipated to be filed in 2010 with a projected in service date of 2013.

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Fort McMurray Bulk Transmission System Development Project Stage 1) – P838

500 2017 .3 The purpose of the project is to increase the import/export transfer capacity between the FortMcMurray area and the AIES in order to meet forecasted load and generation growth in the Fort McMurray area and address voltage instability during heavy flow conditions. The project consists of constructing a new 500 kV substation named Thickwood Hills a new 500 kV line energized initially at 240 kV fromBrintnell to Thickwood Hills. The need for this project was approved by the Government of Alberta as part of the critical transmission infrastructure.

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Fort McMurray Bulk Transmission System Development Project Stage 2) – P838

500 2020 .3 The purpose of the project is to increase the import/export transfer capacity between the FortMcMurray area and the AIES in order to meet forecasted load and generation growth in the Fort McMurray area and address voltage instability during heavy flow conditions. The project consists of constructing a new 500 kV line from Livock to Genesee and energize the full line between Genesse and Thickwood at 500kV.The need for this project was approved by the Government of Alberta as part of the critical transmission infrastructure.

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Christina Lake Area Development

240 2015 This project involves the development of looped 240kV double circuit in the Christina Lake area south of FortMcMurray. The project will allow connection of new load and reinforce the transmission system to accommodate the forecasted load and generation growth in the area south of Fort McMurray. The project involves the following;

3 new 240/144kV substations (CHL1, CHL2 and CHL4) Termination of the new looped 240kv line into the existing HeartLake

substation

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Algar 240/144kV substation 240/144 2015-2017 This project involves the construction of a new 240/144kV substation to provide a fourth source to the 144kV transmission system in Fort MCMurray to accommodate

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load growth in the area and alleviate anticipated congestions on the 144kV system.

Algar-Kinosis 240kV line 240 2017-2020 This project involves the construction of a new 240kV circuit connecting the existing Kinosis substation to the new Algar substation. This project will provided needed reinforcement to the Fort McMurray 240kV network in order to accommodate the forecasted load growth.

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Southern Alberta Transmission Reinforcement (SATR) – P787

240 2012-2016 1 To accommodate the growth in wind generation in the southern Alberta region the following development is proposed:

911L replaced by Foothills to Peigan 240 kV double circuit transmission line with 50% series compensation. Each circuit rated with a summer/winter capacity of 980/980 MVA.

A new 240 kV double circuit line, approximately 150 km in length, from Cassils (West Brooks) to Bowmanton (East Medicine Hat). Each circuit rated at a summer/winter capacity of 980/980 MVA.

A new 240 kV switching station at a location known as Milo Junction, converting the two existing three terminal Langdon – West Brooks – North Lethbridge lines into six two terminal lines.

A new 240 kV double circuit line, approximately 80 km in length, from Bowmanton (Medicine Hat) to Whitla connecting the wind farms in the south. Each circuit rated at a summer/winter capacity of 980/980 MVA.

A new Chapel Rock (Crowsnest) 500/240 kV substation cut into existing 1201L. The station will likely include one 1200 MVA 500/240 kV transformer, two 240 kV 100 MVAR capacitor banks and a +/- 75 MVAR SVC.

A new Chapel Rock – Fidler – Goose Lake 240 kV double circuit transmission line with a rated summer/winter capacity of 980/980 MVA.

The addition of a 138 kV Phase Shifting Transformer at new Russell 632S between Coleman and Pincher Creek.

A new Ware Junction – Langdon 240 kV double circuit transmission line with a rated summer/winter capacity of 980/980 MVA and including 50% series compensation.

The addition of two (2) 240/138 kV 400 MVA transformers at Peigan.New 240 kV Journault substation to connect future wind farms.Interconnect Journault with MATL(Picture Butte 120S) substation.Interconnect Journault with Goose Lake.

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ENMAX South Calgary SS-65 Substation – P922

240/138 2013 .2 This is one of the projects listed as Critical Transmission Infrastruture ("CTI"). The project scope is addition of a new 240/138kV substation and associated 240kV & 138kV system integration in southeast Calgary. The new facitily will provide support to the area load growth and generation increase.

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Edmonton - Calgary East DC Lline – P961

+/- 500 DC Q4/2013 .3 To alleviate congestion on the N-S transmission system, restore capacity of interties, improve efficiency of the transmission system (reduce losses), and avoid potential reliability issues, the following development has been proposed:

Construct a +/- 500 kV bipole, HVDC transmission line between the

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Heartland area and the West Brooks area.Construct monopole HVDC converter station facilities, with an initial rating

of a minimum of 1000 MW.The need for this project was approved by the Government of Alberta as part of the Critical Transmission Infrastructure. The project is currently in the facility siting phase and is forecasted to be in service by Q4 2013.

Alberta Industrial Heartland Bulk Transmission Development – P629

500/240 2013 .3 The purpose of the Heartland bulk transmission system development project is to provide 240 kV and 500 kV transmission facilities to meet the load growth in the Edmonton, Heartland and Northeast Alberta regions, and to provide interconnection to the East HVDC project. The project consists of constructing a new 500 kV substation Heartland 12S with one 500/240 kV auto-transformer, approximately 65 to 85 km of double circuit 500 kV transmission line to Heartland 12S, and approximately 20 km of double circuit 240 kV transmission line. The need for this project was approved by the Government of Alberta as part of the critical transmission infrastructure.

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Alberta Industrial Heartland Bulk Transmission Development – Stage-2

500/240 2015-2020 The purpose of this project is to reinforce the 240kV network in northeastern Alberta and increase reliability to the connection of the East HVDC lines. This project will involve the following reinforcements;

Second 500/240 kV transformer at Heartland Double circuit 240 kV from Heartland to Eastwood Double circuit 240 kV from Eastwood to 942L tap. 10km 2 x 1033

double circuit.

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Shell Wild Steer Butte Wind Farm – P729 – P534

775 11/2013 .2 This project requires 240 kV transmission development to accommodate the connection of the accumulated total of 775 MW from the wind farms. The project consists of approximately 45 km of 240 kV transmission line and a switching station to connect the three wind farm’s collector substations to the AIES. System Dependency approved.

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P116 - Foothills Area Transmission Development 240 Jun-14

The Foothills Area Transmission Development is a regional system project that is required to support load growth and generation increase in the Calgary and Foothills areas, and also to support the wind power generation increase in southern Alberta. The project consists of initial stage of a new Foothills substation to terminate the new 240kV lines from Fort Mcleod area in southern Alberta.

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P1117 - Foothills Area Transmission Development 240/138 Jun-14

The Foothills Area Transmission Development is a regional system project that is required to support load growth and generation increase in the Calgary and Foothills areas, and also to support the wind power generation increase in southern Alberta. The project consists of: new 240kV lines from Foothills substation to ENMAX No. 65 substation, new 240kV lines from Langdon substation to Janet substation. new 138kV lines to High River area, and the associated 240kV & 138kV system modification in southeast Calgary.

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P1118 - Foothills Area 240/138 Jun-17 The Foothills Area Transmission Development is a regional system project that is “






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Transmission Development

required to support load growth and generation increase in the Calgary and Foothills areas, and also to support the wind power generation increase in southern Alberta. The project consists of: new 240kV lines from Foothills substation to Sacree substation and the associated 138kV system modification in southeast Calgary.

Edmonton - Calgary West DC Lline – P962


Construct a +/- 500 kV bipole, HVDC transmission line between the Genesee area and the existing Langdon 102S substation.

Construct monopole HVDC converter station facilities, with an initial rating of a minimum of 1000 MW.

The need for this project was approved by the Government of Alberta as part of the Critical Transmission Infrastructure. The project is currently in the facility siting phase and is forecasted to be in service by Q4 2014.

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Edmonton - Calgary East DC Lline – P961


Construct a +/- 500 kV bipole, HVDC transmission line between the Heartland area and a new 240kV substation south of Westbrooks (Newell).

Construct monopole HVDC converter station facilities, with an initial rating of a minimum of 1000 MW.

The need for this project was approved by the Government of Alberta as part of the Critical Transmission Infrastructure. The project is currently in the facility siting phase and is forecasted to be in service by Q4 2014.

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ENEL Hwy 785 Wind Farm – P510

235 2014 .2 This project requires 240 kV transmission development to accommodate the connection of the 235 MW Hwy 785 wind farm in southern Alberta. The project consists of a 240 kV three breaker ring bus tap to a new 240 kV line being constructed as part of the Fidler project.

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TransCanada Saddlebrook Power Station – P744

350 240 2012 .2 TransCanada Energy is in the planning stages for development of a 350 MW combined cycle power plant to be in service by 2012. The location of the Foothills substation will affect the interconnection of the generator. The project must be aligned with Southern Alberta Transmission Reinforcement (SATR) and FATD due to the scope impacts and requirements for special protection scheme (SPS) initially.

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Heritage Wind Farm - P515 300 2015 .2 The Heritage Wind Farm project is a 350 MW wind power site that is located in South West Alberta. The project will connect to the proposed Fiddler 240/138 kV substation, where 240 kV circuits at this location are connected to Goose Lake (240/138 kV) substation and proposed Chapel Rock (500/240 kV) substation. This project has been delayed pending results of AUC hearings on Fidler and Chapel Rock Substations.

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Vindt Willowridge – P614 100 240 2013 Vindt Willowridge is a 100MW wind project that will connect to 966L “

Old Elm and Pothole Creek P1080

300 2016 300 MW wind farm connecting into future 988l 240KV line “

Bloodtribe Wild Turnip Hill 150 2014 150 MW connecting into 240KV Line 968L “

P635 - Suncor Hand Hills Wind Energy Project 80 240 Dec-13

The Suncor Hand Hills Wind Farm project is a 80 MW wind power site that is located north-west of Anderson 801S. The project consists of a 240 kV switching station (Mother Mountain) that is a 240 kV ring bus, a 240 kV single-circuit transmission line and a 240/34.5 kV collector substation (Hand Hills 605S).

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P678 - Nexen Hand Hills Wind Project 80 240 Apr-13

The Nexen Hand Hills Wind Farm project is a 80 MW wind power site that is located north-west of Anderson 801S. The project consists of a 240 kV additions at proposed Coyote Lake 963S, a 240 kV single-circuit transmission line and a 240/34.5 kV collector substation (High Land 572S).

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P811 - Central East Transmission Development 240 Dec-17

The Central East Transmission Development is a regional system project that is required to support growth in the Central Region. The project consists of re-energizing an existing transmission line to 240 kV from proposed Bourque 970S substation to Bonnyville 700S, modifications to Bourque 970S and a new 240 kV transmission line from Marguerite Lake 826S to proposed Bourque 970S.

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P812 - Hanna Region Transmission Development 240 Mar-13

The Hanna Region Transmission Development is a regional system project that is required to support growth in the Hanna region. The project consists of four 240 kV source substations (Coyote Lake 963S, Lanfine 959S, Pemukan 932S and Nilrem 574S) one 240 kV switching station (Oakland 946S), modifcations to existing 240 kV substations (Hansman Lake 650S, Ware Junction 132S and Cassils 324S), -100/+200 MVar SVC's (Hansman Lake 650S and Lanfine 959S) and about 300 km of new 240 kV double-circuit transmission.

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P812 - Hanna Region Transmission Development 240 Jun-17

The Hanna Region Transmission Development is a regional system project that is required to support growth in the Hanna region. The project consists of new 240 kV switching station (Halkirk 401S), addition of capacitor banks and second 240/144 kV transformers at substations (Hansman Lake 650S, Pemukan 932S, Lanfine 959S), -100/+200 MVar SVC's (Pemikan 932S), stringing 240 kV circuits using vacant sides of double-circuit towers (Oakland to Lanfine, Oakland to Coyote Lake) and new 240 kV transmission line (Cordel 755S to Halkirk 401S).

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P813 - Red Deer Transmission Development 240 Dec-14

The Red Deer Transmission Development is a regional system project that is required to support growth in the Red Deer region. The project consists of three new 240/138 kV source substations; Johnson 281S in and out from existing 918L, Hazelwood 287S in and out from existing 929L and Wolf Creek 288S in and out from existing 910L.

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Moscow 230 kV Transformer and station rebuild

230/115 12/2013 .5 Avista has begun construction (in late CY 2010) on a new Moscow 230/115 kV substation (located adjacent to the existing Moscow 230/115 kV substation). This project will be constructed in a double bus-double breaker configuration for the 230 kV yard, and in a breaker-and-a-half configuration for the 115 kV yard. Additionally, Avista will replace the existing 125 MVA 230/115 step-down transformer and associated 125 MVA 115/115 kV regulating transformer with a new 250 MVA 230/115 kV tap changing transformer. The Moscow 230 kV station rebuild (including the transformer replacement), and associated minor 115 kV reconductoring in the Moscow, ID and Pullman, WA area will positively impact the performance of the West of Hatwai path (WECC path #6).

Tracy Rolstad(509) 495-4538

(AVA)

Noxon Rapids Turbine Upgrades

+ 42 MW

6/2012 .2 Avista’s Power Supply function is engaged in turbine blade upgrades on Noxon Rapids units #2, #3, and #4. These upgrades will add an additional 14 MW’s respectively to the existing turbine capacities. The total electrical output of the Noxon Rapids project will be a maximum of 557 MW. This electrical limit does not consider any hydraulic limitations associated with the greater Clark Fork River project (which includes Cabinet Gorge and Noxon Rapids).

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Major Generation Addition 2010-2013 .1 The following projects are in progress: East Toba and Montrose Creek Hydro Project – 236 MW 7/2010 In-Service Waneta Expansion – 435 MW 3/2013 Revelstoke G5 – 500 MW 10/2010 In-Service & Complete

Guihua Wang(604) 699-7367

(BCTC)

Saltery Bay Substation 230/138 6/1/2010In-Service

& Complete

.2 This new substation project in Saltery Bay, BC is currently under construction to facilitate interconnection of East Toba/Montrose Creek project. It contains two 150 MVA 230/138 kV transformers, with one new and the other one moving from Malaspina substation. Saltery Bay is located 26 km from Malaspina substation. Also, as part of the project, the line section of 1L48 from Malaspina to Saltery Bay (26 km) will be operated at 230 kV. Presently, the line is operated at 138 kV level, although it was designed for 230 kV. The project is already in service since March 2010.

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Selkirk 500 kV Shunt Reactor

500 2/2011In-Service

& Complete

.1 A 500 kV 123 MVAR shunt reactor is being planned for Selkirk 500 kV substation. This project was energized in Feb 2011.

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Harewood West Substation 230/138 3/31/2011 .2 This new substation is part of Central Vancouver Island (CVI) re-inforcement project, currently under construction. It taps into the existing 2L123 and 2L128 at Harewood West, with two 300 MVA 230x138 transformers. This project is currently partially in service with one transformer in service in Oct. 2010.

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Ashton Creek Substation Shunt Capacitor Banks


& Complete

.2 This project, adding two 500 kV 250 MVAr switched shunt capacitor banks in Ashton Creek Substation, is under construction. This project was completed.

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BC-Washington 500 kV Tie-line Upgrade


.2 1 A project has been raised to increase the thermal capabilities of the two 500 kV circuits between Ingledow substation in BC and Custer substation in Washington to

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& Complete 3000 A each. A WECC Path Rating process has been initiated for this upgrade..

Cranbrook Station to Invermere Station Second 230 kV Line

230 Deferred(to be

removed)

.1 This new transmission line project in the East Kootenay area is planned to reinforce the radial transmission system to serve load in the area reliably. Scheduled in-service date is deferred from original 2011.

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Selkirk 500/230 kV Transformer Addition

500/230 9/2011In-Service

& Complete

.1 1200 MVA A new 1200 MVA 500/230 kV transformer (T4) is being added at the Selkirk 500 kV substation in the South Interior of the province, and the two existing 672 MVA transformers will be re-connected. SEL T4 was energized in December 2010.

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Vancouver City Central 230 kV Transmission Project

230 4/2012 .2 Construction of a new Mount Pleasant Substation and new transmission lines: 2L20 (3.4 km) –Cathedral Square to Mount Pleasant, 2L44 (4.8 km)- Mount Pleasant to Sperling.

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Invermere to Goldon 230 kV line

230 10/2012 .2 This new 230 kV transmission line project in the upper Columbia Valley area is planned to reinforce the radial transmission system to serve load in the area reliably. The new 230 kV line is to be built from INV to Kicking Horse substation, with the total length of 120 km.

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Dawson Creek / Chetwynd Area Transmission (DCAT) Project

230 10/2013 .2 The Dawson Creek / Chetwynd Area Transmission Project (DCAT) consists of two 60 km 230 kV lines running from a new 230/138 kV substation named Sundance Substation (SLS) to Bear Mountain Terminal (BMT) and a new 138 kV line from BMT to Dawson Creek Substation (DAW). This project would provide additional transmission capacity into the Dawson Creek area to support new unconventional gas production loads.

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Northwest Transmission Line (NTL) Project

287 12/2013 .2 The proposed approximately 340 km Northwest Transmission Line (NTL) is a 287 kV transmission line running from Skeena Substation near Terrace to a new substation that would be built near Bob Quinn Lake. This project would provide a reliable supply of clean power to potential industrial developments, as well as remote northwest communities who currently obtain their power from diesel generators.

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Fraser Valley West Area Reinforcement (230 kV)

230 10/2014 .2 Construction of a new Fleetwood Substation and new transmission linesSplitting 2L75 – Ingledow to McLellan to 2 lines. New lines: 2L75 (8 km) – Ingledow to Fleetwood and 2L81 (8 km) – Fleetwood to McLellan.

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Series Compensation on South Interior 500 kV lines

500 10/2014 .2 The definition phase for series compensation of South Interior 500 kV lines between Ashton Creek - Selkirk and Ashton Creek – Vaseux has started. The planned in-service date is deferred to October 2014.

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Mica – Nicola 500 kV Series Compensation

500 10/2014 .1 The definition phase for series compensation on the two 500 kV lines between Mica and Nicola has been initiated. The scheduled in-service date is delayed to October 2014.

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New ILM 500 kV line 500 10/2014 .2 The new line is planned to provide incremental transmission transfer capability from the Interior of British Columbia to the load centers in the Lower Mainland. This new

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500 kV transmission circuit, 5L83, will be approximately 250 km long and will run between the Nicola and Meridian substations. 5L83 will be 50% series compensated at or near American Creek Capacitor Station. Technical planning studies have been completed and the project is currently undergoing definition phase.

Nicola Station Reconfiguration

10/2014 .2 A project is planned to reconfigure Nicola station, a critical station that collects power flows from the South Interior before transmitting the power to Lower Mainland, to prevent total loss of the station and increase the reliability of the transfer of power to the Lower Mainland.

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Mica G5 & G6 Addition 1000 2014,2015 .1 The plan is to build two 500 MW units at the current Mica generation plant. “

Metro North Area 230 kV Reinforcement

230 10/2018 .2 Reterminate 2L49 from Meridian x Horne Payne to Meridian x Murrin (34 km), Reterminate 2L50 from Burrard x Murrin to Burrard x Horne Payne (19.5 km), Add two new lines: 2L26 (7.45 km) – Horne Payne x Murrin and 2L23 (19.3 km) – Como Lake x Horne Payne.

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West End 230 kV Substation

230 10/2019 .2 Construction of a new West End Substation and new transmission lines: Splitting 2L32 (7.5 km) – Horne Payne to Murrin, 2L30 (1.2 km) – Murrin x Cathedral Square, Reterminate 2L31 – from Murrin x Cathedral Square to Murrin x West End (3.9 km), Add new line 2L25 (1.7 km) – Cathedral Square x West End.

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Site C – Major Generation Addition

900 12/31/2020 .2 The Site C project involves building the third dam on the Peace River in northeast B. There will be six 150 MW generators, with the total capacity of 900 MW. Site C is now in the regulatory review phase, this phase is expected to take about two years, and it is anticipated that Site C will be available for domestic electricity need by 2020.

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Site C – Peace Canyon Transmission Lines

500 12/31/2020 .1 Build two 500 kV transmission lines from Site C to Peace Canyon. “

Echo Lake-Monroe 500 kV Transmission Project

500 On hold .05 Associated with new generation and load service. The project is on hold until funding becomes available or load growth supports construction.

Kyle Kohne360-619-6839

(BPA)

West of McNary Reinforcement (WOMR) Project

500 2012-13 3 1 1The purpose of West of McNary Reinforcement Project is to increase transmission capacity and relieve congestion to serve point to point transmission service requests which impact the West of McNary / West of Slatt flow gates. To meet these transmission service requests BPA is proposing to build the 79 mile McNary-John Day 500 kV line (WOMR Group 1). The proposed large number of new wind generators and the construction of the McNary-John Day 500 kV line increases the flow across the West of John Day path. This creates a transmission constraint across the West of John Day path. To remove this constraint, BPA is also proposing the construction of a new 28 mile, 500 kV transmission line connecting BPA’s Big Eddy 500 kV substation located just east of The Dalles, Oregon to a new

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station called Station Z (WOMR Group 2), which is located near Goldendale, WA at about tower 73/1 on the BPA Wautoma-Ostrander 500 kV line. Approximately 600 MW of additional transfer capability is gained across North of John Day path by redistributing the flow across North of John Day cut plane and reducing reactive losses. The project also provides stronger support to Portland load service area resulting in about 200 MW capacity gain for West of Cascades South path during winter load conditions.

Central Oregon Reinforcement Project

500/230 10/2013 .2 The plan of service adds a second 700 MVA transformer at Ponderosa substation. A 230 kV AIS bus will be developed north of the existing Ponderosa 230 kV GIS bus. The high side of the new Ponderosa 500/230 kV transformer will tap the Grizzly – Captain Jack 500 kV line with a high side breaker and the low side will terminate into the new 230 kV AIS bus. A high side breaker will be added to the existing Ponderosa transformer which taps the Grizzly – Summer Lake 500 kV line and terminates into the existing 230 kV GIS bus.

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North Cross Cascade 500 kV Line Project

500 On Hold .05 Consisting of a Chief Joe – Monroe 500 kV line, this project is associated with load service and is on hold until load growth supports construction.

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Lower Valley Area Reinforcement Project (Joint project with PAC and Lower Valley Energy)

345/138/115 Fall 2014 3 1The new 345/138 kV Three Mile Knoll Substation which was constructed by PAC is energized. This substation includes a new 345 kV interconnection with Idaho Power. Idaho Power’s Bridger-Goshen 345 kV line is looped into the Three Mile Knoll 345/138 kV Substation and includes two new 345/138 kV, 650 MVA transformers. BPA will construct an adjacent Hooper Springs 200 MVA 138/115 kV Substation. BPA planned to construct a 20-mile double circuit 115 kV transmission line to bisect Lower Valley’s Lanes-Creek-Valley 115 kV line and create two new lines, Hooper Springs-Lanes Creek and Hooper Springs-Valley. However, a revised transmission route is being researched as a result of the EIS and the plan of service may change. BPA is in the process of installing approximately 30 MVar shunt capacitors near Drummond, ID.

Larry Furumasu360-619-6851

(BPA)

Paul-Troutdale 500 kV Transmission Project

500 Remove .05 Renamed to I-5 Corridor Reinforcement Project. ″

Southwest Oregon Coast Reinforcement Project(Rogue SVC)

230 10/2012 2 1In order to meet load growth and improve voltage stability performance, BPA plans to reinforce the southwest Oregon coast with a +50/-45 MVAR static VAR compensator (SVC) at Rogue substation. The SVC will be connected through a step-up transformer to the Rogue 115 kV bus and control all existing capacitor banks at Rogue substation. The SVC will be used for voltage control and to feed system reactive power losses in the event of the worst outage. The SVC is under construction and projected to be operational by spring 2011. The Bandon-Rogue 115 kV will be rebuilt and is projected to be complete by 2012.

Anders Johnson360-619-6842

(BPA)

I-5 Corridor Reinforcement Project

500 2015 4 RPP 1The plan of service consists of a new 500 kV line between BPA’s existing Troutdale

Kendall Rydell360-619-6825






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Substation and a new 500 kV Substation in the vicinity of Castle Rock, WA. The 500 kV substation in Troutdale Oregon will have three positions initially – one for the new line, one to connect with the existing Troutdale 500/230 kV transformer bank, and one for the existing Troutdale – Ostrander 500 kV line. The plan would also require constructing a new 500 kV Substation in the vicinity of Castle Rock and looping-in the existing Paul-Allston 500 kV line No. 1. The project is expected to increase capacity by approximately 1100 to 1400 MW on the South of Allston path. An Environmental analysis (the NEPA process) is underway and is expected to take up to 3 years to complete.

(BPA)

California-Oregon Intertie 4800 Project

500 Mid-2011 3 4800 MW 1 1The COI has a Rated Transfer Capability (RTC) of 4800 MW but due to system constraints (nomogram operation between the COI, PDCI, North of John Day path flow, and Midpoint-Summer Lake 500 kV line flow) BPA assumes an Operating Transfer Capability (OTC) of 4335 MW to define BPA’s long-term firm Total Transfer Capability (TTC). Likewise the PDCI has an RTC of 3100 MW, but due to the system constraints mentioned above BPA assumes an OTC of 2700 MW to define BPA’s long-term firm TTC. This project will mitigate voltage stability, transient stability, and thermal constraints in order to increase the OTC of the COI and PDCI to 4800 MW and 3100 MW respectively. This will support additional long-term firm transmission service. The plan of service consists of the following actions by BPA:

Install new series capacitors (25 ohm, 3000 A) at Bakeoven on John Day-Grizzly #1 and #2, along with required control, protection and communication equipment.

Install two new 200 MVar shunt cap groups at Captain Jack 500 kV, plus an additional 500 kV circuit breaker to fully develop a bay position.

Install one new 300 MVar shunt cap group at Slatt 500 kV, plus two additional 500 kV circuit breakers to fully develop a bay position.

Reconductor approximately 1 mile of John Day-Grizzly #1 and #2 to a conductor capable of 3500 A at 30 degrees C ambient.

Upgrade John Day-Grizzly #2 from an MOT of 80 degrees C to 100 degrees C (3500 A).

Add the new Captain Jack shunt caps to the FACRI remedial action scheme.

Add the double line loss of Buckley-Grizzly #1 and either John Day-Grizzly #1 or #2 to High Gen Drop RAS.

To support a 4800 MW transfer soutbound on COI, PacifiCorp will need to replace the existing series capacitors at Malin in the Malin-Round Mountain #2 500 kV line with series capacitors rated at least 2667 A continuous and 4000 A for 30 minutes. In addition, other fixes may be necessary in California to utilize the full 4800 MW COI capability and are not covered by the BPA project. Material acquisition and construction began in 2009 and the projected in-service date is second quarter of 2011.

Chuck Matthews360-619-6333

(BPA)

Little Goose Reinforcement 500 7/2013 3 1 “






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Project Under the 2008 Network Open Season (NOS), BPA received signed Precedent Transmission Service Agreements (PTSA) for long-term firm transmission service totaling 1190 MW that will impact the 500kV transmission system between Lower Granite and Little Goose substations, including 1100 MW related to new wind generation facilities. BPA also has active Generation Interconnection requests totaling approximately 1900 MW of wind generation in this area, including 343 MW that is under construction. The current transmission system in SE WA must be reinforced to provide transmission service and generation interconnection. The limiting outages in this area are the loss of one or two 500 kV lines between Little Goose and Lower Monumental. This new 500 kV transmission line would start at the Central Ferry Substation and run to the existing Lower Monumental Substation. A prior generation interconnection project which is expected to be completed in late 2011 will construct the Central Ferry 500 kV Substation. One of the existing Lower Granite – Little Goose 500 kV lines will be looped in initially in late 2011. The second line will need to be looped in once more generation is interconnected, which is anticipated to be in 2013 or later. The project also includes a 550 kV 300 MVAR shunt reactor at Central Ferry and line re-terminations at Lower Monumental. A FEIS is complete and a Record of Decision (ROD) will be drafted. This document will determine whether to proceed with the project and, if so, which alternative was selected. BPA expects to issue its ROD by the end of March 2011. If BPA decides to build the project at this time, construction activities could begin in summer 2011 after all necessary permits and approvals are obtained, and conclude by summer 2013.

Biglow Canyon Phase 3 Wind

175 3/2010 .05 The generation project has executed or is in the process of executing a Large Generation Interconnection Agreement (LGIA) with BPA. Technical interconnection studies can be obtained by signing a non-disclosure agreement with BPA.

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Linden Wind 50 4/2010 .05 The generation project has executed or is in the process of executing a Large Generation Interconnection Agreement (LGIA) with BPA. Technical interconnection studies can be obtained by signing a non-disclosure agreement with BPA.

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Big Horn III Phase 2 50 7/2010 .05 The generation project has executed or is in the process of executing a Large Generation Interconnection Agreement (LGIA) with BPA. Technical interconnection studies can be obtained by signing a non-disclosure agreement with BPA.

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Leaning Juniper III Wind 200 7/2010 .05 The generation project has executed or is in the process of executing a Large Generation Interconnection Agreement (LGIA) with BPA. Technical interconnection studies can be obtained by signing a non-disclosure agreement with BPA.

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Kittitas Valley Wind 108 10/2010 .05 The generation project has executed or is in the process of executing a Large Generation Interconnection Agreement (LGIA) with BPA. Technical interconnection studies can be obtained by signing a non-disclosure agreement with BPA.

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Shepherds Flat Wind Phase 1

250 1/2011 .05 The generation project has executed or is in the process of executing a Large Generation Interconnection Agreement (LGIA) with BPA. Technical interconnection studies can be obtained by signing a non-disclosure agreement with BPA.

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North Hurlburt Wind 1 266 5/2011 .05 The generation project has executed or is in the process of executing a Large Generation Interconnection Agreement (LGIA) with BPA. Technical interconnection studies can be obtained by signing a non-disclosure agreement with BPA.

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Montague I 202 12/2011 .05 The generation project has executed or is in the process of executing a Large Generation Interconnection Agreement (LGIA) with BPA. Technical interconnection studies can be obtained by signing a non-disclosure agreement with BPA.

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Lower Snake Wind 341 12/2011 .05 The generation project has executed or is in the process of executing a Large Generation Interconnection Agreement (LGIA) with BPA. Technical interconnection studies can be obtained by signing a non-disclosure agreement with BPA.

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Miller Ranch Wind 150 6/2012 .05 The generation project has executed or is in the process of executing a Large Generation Interconnection Agreement (LGIA) with BPA. Technical interconnection studies can be obtained by signing a non-disclosure agreement with BPA.

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Golden Hills Wind 200 8/2012 .05 The generation project has executed or is in the process of executing a Large Generation Interconnection Agreement (LGIA) with BPA. Technical interconnection studies can be obtained by signing a non-disclosure agreement with BPA.

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Okanagan Transmission Reinforcement Project

500/230/161 11/2011 2 1This project is an extension of the recently completed “South Okanagan Supply Reinforcement Project.” The project consists of the following upgrades: (1) Convert the Vaseux Lake Terminal from 500/161 kV to 500/230 kV. (2) Upgrade the Vaseux Lake Terminal – R.G. Anderson 161 kV line to 230 kV. (3) Construct a new 230 kV substation at Berntley. (4) Convert the Vaseux Lake Terminal – Oliver/Bentley 161 kV line to 230 kV. (5) Add reactive compensation (30 MVAR each) at D.G. Bell 138 kV and Lee 138 kV. The CPCN (Certificate of Public Convenience and Necessity) for this project was submitted before the BCUC (British Columbia Utilities Commission) on 12/14/07 and was approved on 10/02/08. The project is now in progress.

Waseem Arif250-368-0364

(FBC)

Columbia-Larson 230 kV line

230 2014 .5 This project will involve the construction of a new 30-mile 2-1272 ACSR 230 kV line from Columbia to Rocky Ford, disconnect existing Larson-Rocky Ford 230 kV line at Rocky Ford, then tie the new line to the existing Rocky Ford-Larson circuit, making a new Columbia-Larson 230 kV line. The purpose of this project is to provide additional transmission capacity to serve projected load growth. This project has been coordinated with Bonneville Power Administration (BPA) as part of BPA’s Line and Load Interconnection process since the line will be terminated at BPA’s Columbia 230/115 kV substation. This project will not only provide additional transmission capacity on the District transmission system to serve projected load growth but it will also provide significant benefits for the area south of Columbia substation such as reducing power flows on several transmission facilities in the southern Mid-Columbia area. However, this project will increase the power transfer in the northern Mid-Columbia area. The District has been working with the impacted utilities under ColumbiaGrid, an intraregional entity, to find an acceptable

Ken Che(509) 754-5033

(GCPUD)






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mitigation plan. The project has been publicly announced and is scheduled to be in-service in early CY 2014.

King 230/138 kV Project 230/138 2012 .1 A new 230/138 kV 300 MVA transformer will be installed in the existing King 138 kV substation to accommodate approximately 135 – 150 MW of additional wind generation in the Hagerman area. The King substation will be interconnected to the 230 kV transmission system by looping in-and-out the existing Midpoint-Dram 230 kV line. Because the wind generation projects, which the King 230/138 kV project is to accommodate, have been slow in their development, the in-service date has been deferred to spring 2012. This project has no significant impact on the WECC transmission system.

Mark D. Hanson208-388-2253

(IPC)

Langley Gulch Generation Project

300 07/2012 .5 The Langley Gulch combined cycle generation project will be constructed near New Plymouth, ID in Payette County, ID. The generating plant will consist of one natural gas combustion turbine/generator and one steam turbine/generator. The maximum summer output of the plant is 300 MW (at 32 deg C) and the maximum winter output is 325 MW (at -7 deg C) to 345 MW (at -18 deg C). The integration of the project requires the construction of a new short double-circuit 230 kV line and a new 138 kV line. A new 2.5 mile double-circuit with single conductor 1272 MCM ACSR 230 kV line will be constructed to loop in-and-out the Ontario-Caldwell 230 kV line into the proposed Langley Gulch generation site, thus creating an Ontario-Langley Gulch 230 kV line and a Caldwell-Langley Gulch 230 kV line. And, a new 18 mile single conductor 1272 MCM ACSR 138 kV line (constructed 230 kV and operate at 138 kV) will be constructed from the proposed Langley Gulch generation site tapping the existing Caldwell-Willis 138 kV line at the proposed future Wagner Tap location which is approximately three miles out from the Caldwell substation; and, thus creating a Langley Gulch-Caldwell 138 kV line. The Langley Gulch-Caldwell 138 kV circuit will share double-circuit towers with the Langley Gulch-Caldwell 230 kV line for approximately 2 miles entering into the Caldwell substation. In addition to the transmission line improvements, a new 230/138 kV 335 MVA transformer will be installed at the Langley Gulch generation site. This project has no significant impact on the WECC transmission system.

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Hemingway – Boardman Transmission Project

500 6/2016 1 1000 MW 2 Idaho Power’s 2009 Integrated Resource Plan , a biennially-produced 20-year resource plan for meeting our electric service obligation, identified Pacific Northwest generation resources as one component of the preferred resource portfolio. Requirements of Idaho Power’s wholesale transmission customers are also increasing. The existing transmission system to the Pacific Northwest has been fully subscribed during high-demand periods. To meet the need for more transmission capacity, Idaho Power plans to build 500 kV transmission line from southern Idaho to northeast Oregon. The plan of service is to construct a 299 mile 500 kV transmission line from Hemingway station in southwestern Idaho to the Boardman Power Plant in northeastern Oregon. The Idaho terminal will be the proposed Hemingway Substation located near Walter Ferry, ID in the vicinity of the towns of Melba and Murphy on the south side of the Snake River near PacifiCorp’s Midpoint-Summer Lake 500 kV transmission line. The Hemingway-Boardman Transmission Project facilities to accommodate a 1300 MW west to east and an 800

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MW east to west transfer capacity are listed below:Hemingway 500 kV Transmission Substation, near Walter Ferry, ID (Complete)Existing Midpoint-Summer Lake 500 kV line looped in-and-out of the Hemingway 500 kV Substation (Complete)Hemingway 500/230 kV 1000 MVA Auto-Transformer (4 1-phs) (Complete)Hemingway-Bowmont 230 kV line, 13 miles with single 1590 MCM ACSR “Lapwing” conductor. (Complete)Bowmont 230/138 kV 300 MVA Auto-Transformer (Complete)Hemingway-Boardman 500 kV line, 299 miles with approx 50% series comp. Hemingway-Bowmont #2 230 kV line, 13 miles with single 1590 MCM ACSR “Lapwing” conductor.Bowmont-Hubbard 230 kV line, 16 miles with single 1590 MCM ACSR “Lapwing” conductor.Increase the Midpoint 500 kV Series Capacitor current rating.Increase the Burns 500 kV Series Capacitor current rating.

The initial phase of the Hemingway-Boardman 500 kV project; the loop in-and-out of the Midpoint-Summer Lake 500 kV line in to the Hemingway 500 kV substation with 230 kV integration (230 kV line and 230/138 kV transformer) to the existing Bowmont substation was completed in mid-July, 2010..The Hemingway-Boardman Transmission Project will conform to the NERC/WECC “Reliability Criteria for Transmission System Planning”, and the WECC “Procedures for Regional Project Review and Rating Transmission Facilities.” A Hemingway-Boardman Transmission Project Comprehensive Progress Report (Phase I) was released for comment in November 2008 and was granted Phase II status in March 2009. Idaho Power has participated in the Pacific Northwest Transmission Coordination Workgroup (TCWG) for the past two years. Many of the proposed projects have been placed on hold. Idaho Power has continued to adjust the scope of work for the Phase II study and is now prepared to engage the project review workgroup in study work

Gateway West 500 kV Transmission Project

500 6/2017 3.5 3000 MW 2 The Gateway West Transmission Project as jointly proposed by Idaho Power and PacifiCorp is a 500 kV and 230 kV transmission project from a new station, Windstar – near the Dave Johnston Generating Plant, to a new substation, Hemingway – in southwest Idaho. Idaho Power is leading the planning effort and managing the WECC rating process for the project through southern Idaho. Idaho Power and PacifiCorp are proposing this transmission project because of service-area load growth internal to both companies. Idaho Power forecasts the need for 800 MW of additional power to serve its southern Idaho load by 2017 and PacifiCorp forecasts that its load on the Wasatch Front of Utah will double in the next 20 years. The new transmission from southwestern WY through southern ID will be parallel 500 kV transmission lines from Jim Bridger to Hemingway. The following new stations will be constructed: Populus, Cedar Hill, and Hemingway. The Gateway West Transmission Project will conform to the NERC/WECC “Reliability Criteria for Transmission System Planning”, and the WECC “Procedures for Regional Project Review and Rating Transmission Facilities.” A Gateway West Transmission Project Comprehensive Progress Report (Phase I) was released for comment in November 2008 and Phase II status was requested and granted in

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February 2009.

Pearl Transmission Substation

230 5/2019 .3 Because of the addition of the Langley Gulch Generation Project in the Treasure Valley (see Langley Gulch Generation Project above) and developing the Hemingway 500/230 kV station and its associated 230 kV transmission integration into the Treasure Valley (see Hemingway-Boardman Transmission Project above), the Pearl Transmission Substation project has been deferred beyond Idayho Power’s 10-year planning horizon..

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Montana-Alberta Tie Constructed by Montana Alberta Tie Ltd.

240/230 Q3/2011 2 +325/-300 3 6 4 5 1 1Montana Alberta Tie, Ltd. (MATL), issued a comprehensive progress report on 09-20-05. The project consists of a 230 kV transmission line from 15 km northeast of the existing North Lethbridge substation to Great Falls Montana and a 240/230 kV, +/- 70 degree, 300 MVA phase shifting transformer. The expected project rating is 300 MW. A project scope change was presented in September 2006 to include series capacitors at the Cut Bank mid-point substation. The addition of the series capacitors will increase the emergency rating of the line to about 370 MW. On 6/26/08 MATL received an interconnection request for 300 MW of wind generation, proposed to interconnect approximately 25 miles north of the planned mid-point station. Proposed in-service date for the new generation is 12/31/09. Interconnection studies are currently on-going.

Paul Kos (403) 264-4465

(MATL)

Southern Montana Electric 268 230 10/31/2011Cancelled

2 This plant will deliver electricity to the NWE Transmission system with interconnection to NWE’s 230 kV transmission system at the Great Falls 230 kV Switchyard, east of Great Falls, MT This submittal included a supplemental progress report. This 268 MW coal-fired plant has been withdrawn.

Dan Wheeler406-497-3000

(NWMT)

WKN Wind Project 396 230 12/31/2012 2 This wind plant will deliver electricity to the NWE transmission system with interconnection to NWE’s 230 kV transmission system on the Wilsall-Shorey Road Line west of Billings, MT. The project sponsor, WKN Montana II, LLC, anticipates the commercial operation date to be December 31, 2012.

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Montgomery Project 277 230 8/1/2012Cancelled

2 This plant will deliver electricity to the NWE transmission system as an energy resource with interconnection to NWE’s Great Falls 230 kV Switchyard at Great Falls, MT. This 277 MW natural gas project has been withdrawn.

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Mill Creek Generating Station (NWE Montana Production Project)

213 230 7/12/2010Complete & In-Service

2 This plant will deliver electricity to the NWE transmission system with interconnection at NWE’s 230 kV Switchyard at Mill Creek Substation, east of Anaconda, MT. This project came online on January 1, 2011.

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Mountain States Transmission Intertie Project

500 2013 3 1500 2 The Regional Planning Project Review for this project was begun on 5/17/07. The proposed project consists of a new 500 kV line between southwestern Montana and southeastern Idaho. The main purposes for the project will be to meet requests for transmission service from customers and relieve constraints on the high-voltage transmission system in the region. The Regional Planning Project Review Report for this project was distributed for review on 2/14/08 with a review deadline of 3/14/08. On 4/23/08, the MSTI project successfully completed Regional Planning.

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Currently this project is in Phase II of the WECC 3-Phase Rating Process.

500 kV Upgrade Project 500 1/1/2014 2 3000 This project increases the capacity of the existing 500 kV line from Colstrip or Broadview Substation to Garrison Substation to NW on BPA existing line by 800 MW, achieving a new capacity of 3000 MW. Series compensation will be increased as needed to achieve new capacity.

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Midpoint-Summer Lake 500 kV

500 5/2011 1 550 MW non-

simultaneous

3 Proposed increase in the west-to-east rating of the Midpoint-Summer Lake 500 kV Line. Interactions exist with COI and NW-Idaho Paths. Phase 3 was entered on July 22, 2009. Two 230 kV capacitor banks would be installed at the Meridian Substation.

Craig Quist801-220-4264

(PAC)

Glenrock Wind Farm 237.5 2009 Wind farm located near Kemmerer, Wyoming. “

Three Mile Knoll 138/46 kV Transformer

138/46 4/2010In-Service

& Complete

.5 This project will install a 138/46 kV, 75 MVA transformer at the Three Mile Knoll substation for load services. The in-service date of this project was April 2010.

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Three Peaks Substation on Sigurd – Red Butte 345 kV Line

345/138 5/2010In-Service

& Complete

1 2This project is the construction of a new 345 to 138 kV substation on the existing Sigurd – Red Butte 345 kV line. A 345/138 kV 450 MVA transformer, 55 MVAR shunt line reactor, and a series capacitor will be added within the new substation on the Three Peaks – Sigurd 345 kV line. This new substation is planned to accommodate future load growth in the Cedar City, Utah area. The project was completed by May 2010.

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Red Butte/Central to St. George 345 kV Double Circuit Line

345 5/2012 .5 1This project will rebuild the existing 20 mile 138 kV line from Red Butte to St. George to a new double circuit 345 kV line. This line will initially be operated as a single 138 kV line in 2010 and as two 138 kV lines by 2012. The new lines will be operated at 345 kV by May 2019. The initial phase of this project was completed May 2010. Second stage will be completed by May 2012.

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Oquirrh Substation: Loop-In the Camp Williams-Terminal 345 kV #1 Line

345/138 5/2010 .5 Loop the Camp Williams –Terminal 345 kV #1 Line into the new Oquirrh 345 kV substation, and add the 345/138 kV (700 MVA) #2 transformer. This project provides for a new 345 kV substation in the Oquirrh area of the Wasatch Front and is being proposed for load growth.

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Parish Gap Substation 6/2010In-Service

& Complete

.5 The Parish Gap substation will serve an alternate source for Santiam and Hazelwood. The new substation will provide capacity to accommodate load growth in the Santiam area. This project was completed June 2010.

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TOT 4A Voltage Support Project

230 6/2008-6/2011

1 Wyoming 2010 transfer capability studies, which evaluated the impacts of projected Wyoming load growth on the TOT 4A path rating, have identified the need for additional voltage support facilities listed below to maintain the TOT 4A and 4B nomogram at its current transfer levels. Atlantic City 230 kV, 15 MVAR Capacitor (Completed 11/11/10)

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Riverton 230 kV, 30 MVAR Capacitor (Completed 8/15/10) Midwest 230 kV, 30 MVAR Capacitor (Completed 10/27/10) Platte/Miners 230 kV, -24/+24 MVAR Static VAR System and 2-25 MVAR Shunt Caps (September 2012)

Path C Reinforcement – Populus-Terminal Project


& Complete

1 3 This project is intended to increase transfer capability from southeast Idaho to Utah and includes construction of 135 miles of new double circuit 345 kV lines from a new station (Populus) near Downey, Idaho, through Ben Lomond to Terminal (near Salt Lake City, Utah). The project entered Phase 3 of the WECC rating process on November 3, 2008. The project will increase the rating of Path C. The Phase 2 rating study addresses all impacts on other systems. This project was completed 11/19/2010.

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Casper – Dave Johnston 230 kV #1 & #2 Line Rebuild


& Complete

.5 Loop the Dave Johnston-Spence 230 kV line into Casper. This will form the Dave Johnston-Casper 230 kV #2 line and the Casper-Spence 230 kV line. Reconductor the Dave Johnston-Casper 230 kV #2 line from 954 ACSR to 1272 ACCC. Also, rebuild the Dave Johnston-Casper 230 kV #1 line from 954 ACSR to 1272 ACCC. This project is necessary to maintain the TOT 4A/4B nomogram capabilities. Dave Johnston-Casper #2 was completed April 2010, Dave Johnston-Casper #1 was completed Dec 2010.

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Malin 500 kV Series Capacitor Replacement


& Complete

.5 Studies for this project have indicated that the existing series capacitor on PacifiCorp’s Malin to Round Mountain 500 kV line is one of the limiting factors for the existing COI rating. This project will replace the series capacitor at the Malin 500 kV substation to match the ratings of series capacitors on the other COI line segments. This project was completed December 2010..

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Wyoming Wind Farm 200.2 2011 .1 Planned new wind farm to be built in Wyoming. “

Pinto – Huntington 345 kV Series Compensation

345 4/2011 .5 A 345 kV series capacitor bank will be installed at Pinto in the Pinto – Huntington 345 kV line. Additional transmission capacity from Huntington to the Pinto substation will be required to provide capacity for southeast Utah area load growth. The project is currently in the construction stage. The project should be completed by April 2011.

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Carbon County System Upgrade

138/46 5/2011 .5 This project will involve two or more phases and will begin with the installation of a 138/46 kV transformer substation tied to the Helper-Moab 138 kV line and the Helper-Coal #1 46 kV line. Subsequent phases will include converting the Helper-Coal Creek #1 46 kV line to 138 kV and connecting the line to the new substation and expanding the Helper 138 kV substation.

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Camp Williams – Ninety South 345 kV Double Circuit Line


& Complete

.5 1Addition of the Camp Williams – Ninety South 345 kV double circuit line (~10 miles), and expansion of the substations at each end. In addition to this line, a -200/+600 MVAr SVC will also be required at the Camp Williams 345 kV substation (or another suitable location within the Wasatch Front). This project will serve future load growth in the Wasatch Front with future resources located south of the Salt Lake

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Valley. This project was completed in December 2010.

Red Butte Static VAR Compensator

5/2011 .5 This project will provide needed dynamic voltage support in the Red Butte area in order to maintain transfer capability on the TOT 2C path with the rapid load growth in the St. George area. The size of the SVC is -75/+350 MVAr. 2x150 MVAr, 345 kV dynamically switched shunt capacitor banks and a 60 MVAr shunt capacitor bank.

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Meridian 230 kV Substation – Add two shunt cap banks

230 6/2011 .5 Install two 230 kV capacitor banks with a minimum total size of 225 MVAr. This shunt capacitor was recently identified as part of the Midpoint Summer Lake West to East Phase 2 rating Project and is necessary to achieve a rating of 550 MW on Path 75.

Walla Walla to Wallula to McNary 230 kV Transmission Line #2

230 12/2012 .5 2 This project is intended to increase the transmission capacity from Walla Walla to Wallula to McNary. The existing line has no available transmission capacity remaining. The Walla Walla to Wallula to McNary 230 kV line will be a single circuit transmission line with line terminals at Walla Walla, Wallula and McNary Substations.

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Red Butte switch yard capacitor bank

10/2011Remove

.5 Installation of a 50 MVAr capacitor bank at the Red Butte switch yard. This project is already included in the Red Butte SVS project so this entry will be removed from this list.

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California-Oregon Intertie Upgrade Maintain 4800 MW Rating

500 5/2011 .5 This project will upgrade the California-Oregon Intertie (COI) path in order to maintain the 4800 MW rating on the COI path. This project is a joint project with all COI facility owners.

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East PPA 200.5 2012 .05 Planned new generation to be built in Utah. “

Lakeside 2 Combined Cycle 548 2012 .05 Planned new generation located at Vineyard, UT. “

Terminal 345/138 kV #1 and #2 transformer

345/138 5/2012 .5 Two 345/138 kV 700 MVA transformers will be added to meet projected load growth needs.

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Whetstone 230/115 kV Substation

230/115 5/2013 .5 To serve load growth in this area, construct new 230 to 115 kV in the White City vicinity with a 250 MVA transformer. This project will have no regional impacts. The projected in-service date for this project is: Phase 1 – May 2012, Phase 2 – May 2013.

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Clover Substation – Add 345/138 kV Transformer

345/138 6/2012 .5 This project will add a 450 MVA 345/138 kV Transformer to the Clover substation. “

Camp Williams-Terminal 345 kV #1 line loop in to Oquirrh Substation

345 6/2011 .5 Loop the Camp Williams-Terminal 345 kV #1 line into Oquirrh for additional transfer capability in the Salt Lake Valley. This project is proposed to meet the load growth in the Wasatch Front and will have no regional impacts.

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Ben Lomond 345/138 kV #2 345/138 6/2012 .5 Add a 345/138 kV #2 450 MVA transformer at the Ben Lomond substation. “






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transformer

Line 37 Conversion Project 230/115 10/2012 .5 Construct new 230/115 kV, 114 MVA Nickel Mountain Sub. – Riddle and Gazley Capacity. This will solve the overloads of the Gazley to Days Creek line and the substation overload at Gazley and strengthen the southern Roseburg system.

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Swift-Troutdale 230 kV Line 230 10/2012Cancelled

.4 Recent generation interconnection requests have demonstrated the need for additional transmission capacity from the Swift Projects (Swift 1 & 2). This project provides the needed transmission capacity. This project will construct a new 230 kV line between PacifiCorp’s Swift and Troutdale 230 kV substations. This project will impact the South of Alston Path. This project has been cancelled.

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Union Gap 230/115 kV increase in capacity

230/115 11/2013 .5 Increase capacity at UGS by adding a 3rd 150 MVA transformer. This capacity increase is recommended to prevent overload.

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Vantage-Pomona Heights 230 kV Line

230 11/2013 .5 Joint studies performed by the Mid Columbia Study Team indicated the need for this project. For the loss of the existing Pomona to Wanapum 230 kV transmission line, low voltage and thermal overloads occur in the Yakima/Mid C area. This project corrects these problems. This project will construct a new 230 kV line between the Vantage and Pomona Heights 230 kV buses in Washington state.

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Copco Substation Increase 230/115 12/2012 .5 Replace existing 125 MVA 230/115 kV transformer with a 250 MVA to prevent loading issues and low voltage problems in this area.

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White City Substation 230/115 5/2013Remove

.5 Construct new 230 to 115 kV transmission substation in the west White City vicinity with a 250 MVA transformer. This project is the same as the Whetstone project and will be removed from this list.

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Line 3 Conversion Project 115/69 11/2013 .5 Rebuild Baldy switching station, convert Line 3, relocate the 115 to 69 kV transformers to Belknap sub, and install 115 kV breakers at Oak Knoll and Ashland subs.

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Gateway Central Transmission Project

500/345/138 2014 2 This project consists of the following: (1) double-circuit 345 kV transmission line stretching approximately 90 miles from the Populus Substation to be built near Downey, ID, to the existing Ben Lomond Substation in Box Elder County, UT, (2) new double-circuit 345 kV transmission line alongside existing high-voltage lines from the Ben Lomond Substation to the Terminal Substation near the Salt Lake City airport, a distance of approximately 46 miles, (3) a new high-voltage transmission line and two future substations in UT which will originate at a substation to be built near the existing Mona Substation outside Mona in Juab County, and run north to another future substation. The line will then split and connect to Oquirrh Substation in West Jordan and to Terminal Substation in Salt Lake City, and (4) a new line between the Oquirrh Substation in West Jordan north to Terminal Substation. This section of new transmission will link together other new transmission sections: Mona to Oquirrh and Populus to Terminal to complete the Gateway Central portion of the Energy Gateway Tramsmission Expansion Project.

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Central Substation 345/138 kV transformer replacement

345/138 5/2014Cancelled

.5 Replace existing Central substation 345/138 kV transformer with a 450 MVA. This project has been cancelled.

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Syracuse 345/138 kV #2 Transformer

345/138 5/2015 .5 This project will install a second 345/138 kV 400 MVA transformer at the Syracuse substation for load service.

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Terminal 345/138 kV #3 transformer

345/138 5/2015Cancelled

.5 Install 3rd 345/138 kV 700 MVA transformer to meet projected load growth needs. This project has been cancelled.

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St. George 345 kV Substation with 345/138 kV Transformer

345/138 2015 1 Build the St. George 345 kV substation with a 700 MVA 345/138 kV transformer. Energize one Red Butte – St. George circuit at 345 kV.

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Midvalley 345/138 kV #1 and #2 transformer replacement

345/138 5/2016 .5 This project will replace existing Midvalley 450 MVA transformers with 700 MVA transformers and a 4th 345 kV circuit breaker.

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Mt. Shasta Substation 115/69 11/2016 .5 Construct new 115 kV to 12.5 kV sub with new 25 MVA LTC transformer. Construct a 115 to 69 kV sub at Mott Switching Station. Convert Line 2 south to 115 kV between Weed Junction and Mott subs.

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Pilot Butte 500/230 kV new sub

500/230/115 9/2017Remove

.5 This project consists of a Pilot Butte 500/230 kV new sub / new 230/115 kV sub / convert Bend Redmond 69 kV line. This will avoid N-1 overloading of Pilot Butte 230/69 kV transformers. This is a BPA project and will be removed from this list.

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Copco to Weed Junction Line Conversion

115/69 11/2017 .5 Construct and rebuild existing 69 kV transmission line and associated subs to 115 kV.

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Yellowtail 230/161 kV #2 Transformer

230/161 5/2018 .5 Install 2nd 230/161 kV 100 MVA transformer at Yellowtail substation to prevent overload of the Yellowtail 230/161 kV transformer for the loss of the Billings-Yellowtail 230 kV line or the Yellowtail-Yellowtail (WAPA) 230 kV line.

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Big Grassy 161 kV 42 MVAr Cap Bank

161 5/2018 .5 Addition of 42 MVAr capacitor bank at the Big Grassy 161 kV substation. This capacitor will provide voltage support in Eastern Idaho.

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Three Mile Knoll 345/138 kV #2 Transformer

345/138 5/2018 .5 Addition of second Three Mile Knoll 345/138 kV 700 MVA transformer that will be required for local load services.

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Klamath Co Gen 500/230 kV Transformer

500/230 9/2018 .5 New 500/230 kV transformer at Klamath Co-Gen. “

Sigurd-Three Peaks-Hurricane-St. George 345 kV line

345 2021+ .5 This project would entail constructing one 345 kV line from Sigurd to St. George via Three Peaks and Hurricane. This line will effectively serve loads in South West Utah. This project has been delayed beyond 2021.

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Gateway South 500 kV Project

500 2019 3 2 1The Gateway South – Stage 1 Transmission Project as proposed by PacifiCorp

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includes a 500 kV transmission line from the proposed Aeolus substation in southeast Wyoming (constructed as part of the Gateway West Project) to the Clover substation in central Utah, and a 345 kV transmission project from the Sigurd substation near Richfield, utah to the Red Butte substation in southwestern Utah. PacifiCorp is leading the planning effort and managing the WECC rating process for the project. The Gateway South project entered Phase 2 in January 2009. Of the transmission paths associated with the project, the Aeolus South path was granted Phase 3 status on December 16, 2010 while the TOT 2B/2C Paths should be granted Phase 3 status in the first quarter of 2011. PacifiCorp is proposing this transmission project because of native load growth and the need to deliver renewable resources from Wyoming to PacifiCorp retail load centers. PacifiCorp forecasts that its load on the Wasatch Front of Utah will double in the next 20 years. Additionally, PacifiCorp has an independent obligation, pursuant to its Open Access Transmission Tariff, to plan for and expand its transmission system based upon the needs of its native load and network customers along with eligible customers that agree to expand the transmission system.

Horizon 230 kV Integration Plan

230/115 6/1/2012 0.1 PGE plans to install a 230/115 kV, 320 MVA auto-transformer at Sunset Substation, located in Hillsboro, OR. This project requires construction of a new 230 kV transmission line from Horizon Substation to BPA’s Keeler Substation (approximately 1.0 mile). No regional impact on the WECC interconnected system.

Philip Augustin503-464-7783

(PGE)

Pearl-Sherwood 230 kV retermination

230 Project deferred

0.1 Add two circuit breakers to reterminate the existing double circuit line, resulting in two circuits between BPA’s Pearl and PGE’s Sherwood Substations. No regional impact on the WECC Interconnected System. This is a joint project between BPA and PGE.

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Blue Lake-Gresham 230 kV Line

230 6/1/2017 0.1 Construct a transmission line from Blue Lake Substation (Troutdale, Oregon) to Gresham Substation (Gresham, Oregon). This project requires 4.2 miles of new 230-kV transmission line. No regional impact on the WECC Interconnected System.

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Trojan-Horizon 230 kV line 230 1/2015 .3 PGE proposes to construct approximately 40 miles of new 230 kV transmission line. The project starts from an existing PGE substation adjacent to the former Trojan plant near Rainier, OR to the new proposed PGE Horizon Substation in Hillsboro, OR. PGE will utilize 28 miles of currently unused right-of-way adjacent to the existing 230 kV lines from Trojan to the Portland area. In addition to the new transmission line, the Horizon Substation will be expanded to terminate the new 230 kV line as well as the installation of a second 230/115 kV, 320 MVA auto-transformer to connect to the adjacent 115 kV PGE Sunset Substation. Also, 2.7 miles of the Sunset-Orenco 115 kV line will need to be reconductored with a 795 ACSS conductor.

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Cascade Crossing 500 kV Project

500 6/1/2015 1 2 PGE proposes to construct approximately 210 miles of new 500 kV transmission line. The project starts at PGE’s Coyote Springs generation plant located in the town of Boardman, OR, and ultimately terminates with the installation of a new 500/230 kV transformer bank at PGE’s Bethel Substation located in Salem, OR.

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The Boardman and Coyote Springs substations will be expanded to accommodate the project. PGE will need to acquire approximately 30 miles of new ROW for the Boardman to Coyote Springs 500 kV line. After the Boardman substation the project will connect to new wind resources being developed in Gilliam and Wasco counties in Oregon. The project will parallel existing utility lines whenever possible by acquiring additional ROW for approximately 180 miles along the route into Salem, where the line will terminate at an expanded Bethel substation.

Sedro – Horse Ranch 230 kV Transmission Project

230 10/2011 .1 The project will add much-needed capacity across the South of Sedro cut-plane. The project will minimize the need for PSE and BC generator tripping due to the loss of the Sedro – Horse Ranch – Bothell 230 kV line.

Joe Seabrook425-462-3577

(PSE)

Vantage Wind Project / Substation

104 230 10/2010In-Service

& Complete

.1 The project includes the addition of 103.5 MW in central Kittitas County, near PSE’s Wild Horse Wind Power plant. Generation will interconnect at a newly-constructed substation and will flow via PSE’s Wind Ridge substation to Grand County PUD’s Wanapum 230 kV bus.

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Jefferson County 115 kV Upgrade Phase II

115 2012 .1 This project involves looping Clallam County’s 115 kV transmission line serving the Port Townsend Mill through PSE’s Irondale substation. The project is intended to provide backup transmission to Jefferson County.

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Sedro Woolley 230 kV Transformer Addition

230/115 2012 .1 The project will involve installation of a 230/115 kV transformer at the Sedro Woolley Substation. This transformer will address NERC planning criteria and provide additional capacity to serve the projected load growth in Skagit and Island Counties.

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Pierce County Transformer Addition and Line Reroutes

230/115 2012 .1 This project is intended to provide additional capacity to serve the projected load growth in Pierce County and surrounding areas. The project will involve installation of a 230/115 kV transformer at Alderton substation and 8 miles of 230 kV transmission line from White River to Alderton, as well as the re-routing of 115 kV lines.

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Thurston County Transformer Addition

230/115 2013 .1 The project is intended to provide additional capacity to serve the projected load growth in Thurston County and surrounding areas. The project will involve installation of a 230/115 kV transformer at St. Clair substation.

Lake Tradition 230 kV Transformer Addition

230/115 2013Supersede

d by Lakeside

Substation project below

.1 This project will involve installation of a 230/115 kV transformer at the Lake Tradition Substation. This transformer will address NERC planning criteria and provide additional capacity to serve the projected load growth in east King County and surrounding areas. This is an alternative to the preferred option of installing 230/115 kV transformer at Lakeside Substation. If the Lakeside transformer can be completed in a timely manner, the project at Lake Tradition may be deferred.

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Lakeside Substation 230 kV Transformer Addition

230/115 2015 .2 The project will involve installation of a 230/115 kV transformer at Lakeside Substation. This transformer will address NERC planning criteria and provide additional capacity to serve the projected load growth in north central King County

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and surrounding areas. This project would include rebuilding the Sammamish-Lakeside-Talbot 115 kV lines, energizing one or both at 230 kV to provide a source to Lakeside Substation and transmission capacity. This is an alternative to the previously considered option of installing a 230/115 kV transformer at Lake Tradition.

West Kitsap Transmission Project, Phase II

230/115 2018 .1 The project is intened to provide additional capacity to serve the projected load growth in Kitsap County and surrounding areas. The project will involve installation of a 230/115 kV transformer at Foss Corner Substation along with a 230 kV line from Foss Corner to the future BPA Kitsap 230 kV substation.

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Sea Breeze Pacific Regional Transmission System

500 10/1/2006 22 600 2 1Two new 500 kV transmission lines between Vancouver Island (BCTC’s Pike substation) and the Olympic Peninsula (BPA’s Port Angeles and Fairmount 230 kV substations).

E. John TompkinsSea Breeze Pacific

RTS(860) 747-0497

Sea Breeze Pacific – West Coast Cable Project

500 2010 3 1600-3200 1 1500 kV DC bi-pole transmission interconnection between the Alston Substation in Alston, Oregon and one or more substations in the San Francisco, CA Bay area

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Sea Breeze Pacific – Juan de Fuca Cable Project

+/- 150 kV DC 2012 3 550 MW 2 +/- 150 kV 550 MW HVDC Light transmission cable connecting the Olympic Peninsula of WA State (BPA) with Vancouver Island in British Columbia (BCTC).

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Southwest Intertie Transmission Project (SWIP)

500 Q4/2012 .25 This project is considered as Phase II to ON Line Project. Install 500-kV 275 mile long Line from Idaho Power’s Midpoint to the proposed Robinson Summit Substation located 20 miles west of Ely, Nevada. Install 70% series compensation (for 245 mile line impedance) equipment on this line as follows: 35% at Thousand Springs located 126 miles from Midpoint and 35% at Robinson. Install 2×600 MVA 345/345 kV Phase Shifting Transformers (PST) at Robinson Summit: one on Falcon and another – on Gonder 345 kV line terminals respectively. Install 70% series compensation on Robinson – Harry Allen 500 kV line, 35 % at each end. NVE and LS Power are in a process of performing SSR studies to identify possible adverse effects on the near-by generatorsError: Reference source not found. According to an MOU signed between NVE and GBT, is a joint project.

Edi von EngelnNV Energy North(775) 834-4456

Southern Nevada Intertie Transmission Project (SNIP)

500 Q4/2013 .1 This project is considered as Phase II to ON Line Project. Install 500-kV 60 mile long Line from NVE’s Harry Allen to Southern California Edison’s Eldorado Substation. Install 70% series compensation at Harry Allen. NVE and GBT are in a process of performing SSR studies to identify possible adverse effects on the near-by generatorsError: Reference source not found. According to an MOU signed between NVE and GBT, is a joint project.

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Blackhawk 345/120 kV Substation (was Emma)

345/120 6/2018 .1 This is a new substation with a projected in-service date of June, 2018. This project is postponed indefinitely.

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Fallon 230 kV Source 230 6/2014 .1 Install a new 230 kV line from Pony Express Sw Sta (Enel) to a new 230/60 kV substation (approx. ½ mile south of Fallon) and build a series of substations and

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switching stations (Pony Express, Bunejug, and Macari) to provide a new source in to the City of Fallon.

Ely Energy Center Postponed indefinitely

.1 Install two new generation facilities within service dates of June 2015 for EEC Unit #1 and June 2016 for EEC Unit #2. This project has been postponed indefinitely.

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One Nevada Transmission Intertie Project (ON Line) (previously known as Ely Energy Center and associated Robinson Summit – Harry Allen 500 kV Transmission Project)

500 Q4/2012 .2 1000 2 Install 500-kV 236 mile long Line from the proposed Robinson Summit Substation located 20 miles west of Ely, Nevada to the existing Harry Allen Substation located northeast of Las Vegas, Nevada. Fold existing Falcon – Gonder 345 kV line into Robinson Summit Substation and connect 345 kV and 500 kV buses through 2×525 MVA 345/500 kV autotransformers. Install 70% series compensation equipment on Falcon – Robinson 345 kV line, 35 % at each end. NVE is currently performing Sub-Synchronous Resonance (SSR) studies to identify possible adverse effects on the near-by generators1. According to an MOU signed on 1/11/2010 between NVE and Great Basin Transmission, LLC (GBT), ON Line has become a jointly owned project.

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Canyon Substation / Switching Station

110 2/2011 .2 The Canyon Substation Switching Station is being constructed midway on the two existing 110 kV LaGrande lines. This project includes a 230/110 kV interconnection with BPA at this location. A 400 MVA, 230/110 kV, auto transformer will be installed at this substation and Tacoma Power’s two Cowlitz-LaGrande lines will be split into four lines: (2) Canyon-Cowlitz and (2) Canyon-LaGrande 110 kV lines. This project is on track to be completed and put in service before the end of February, 2011.

Francis Tong253-502-8262

(TPWR)

NorthernLights Project +/- 500 kV DC 2017-19 1 2000 MW 2 1NorthernLights is a 500 kV, direct current, 2000 MW transmission line from southeastern Alberta, Canada to the Buckley station in northern Oregon. The Regional Planning process was completed in February 2008 and the Phase 2 status was achieved in March 2009. Further activity on the project is awaiting decisions within Alberta of the need for increased interconnection capacity to other markets. The project cost is $2 billion with an ISD of 2017 to 2019.

Bill Hosie403-920-7338

(TCP)

Zephyr Project +/- 500 kV DC 2016 .1 3000 MW 1 Zephyr is a 500 kV, direct current, 3000 MW transmission line from south-eastern Wyoming to the Eldorado Valley in southern Nevada. The Zephyr development plan includes a potential 750 MW intermediate converter station near the Borah substation in south-eastern Idaho. The Regional Planning process was complete in November 2009. In 2010, TransCanada concluded a successful Open Season with three substantial creditworthy Wyoming wind developers (Pathfinder Wind, BP Wind and Horizon Wind) executing precedent agreements for the entire 3000 MW of Zephyr capacity. TransCanada and its customers are establishing market support prior to moving forward with full scale siting and permitting activities. The project cost is $3 billion with an ISD of 2016.

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Chinook Project +/- 500 kV DC 2017 .1 3000 MW 1 Chinook is a 500 kV, direct current, 3000 MW transmission line from south-central Montana to the Eldorado Valley in southern Nevada with a potential future 750 MW intermediate converter station near the Borah substation in south-eastern Idaho. The Regional Planning process was complete in November 2009. TransCanada conducted an Open Season for the Chinook project that closed on December 16, 2010. Bids totaling 1500 MW were received; however they were not accepted as the amount was insufficient to justify allocating capacity at this time. TransCanada may decide to hold a new open season process, if regulatory uncertainties get resolved and if Montana energy project developers express sufficient interest in a new open season. It is not unusual for projects of this scale to test the market a number of times. The fact that a project is not successful in one open season does not mean that a project is dead and, indeed, other transmission projects in the west have had multiple open seasons. The project cost is $3 billion with an ISD of 2017.

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Havre to Rainbow 161kV Rebuild / Upgrade

161 2007-2017 .4 Western’s 103 mile Havre – Verona – Rainbow 161kV transmission line was constructed and energized in 1935. It electrically parallels NorthWestern Energy’s (NWE’s) Havre – Rainbow 161kV circuit. These two circuits maintain separate rights-of-ways with two crossings. Western intends to rebuild its circuit in segments, over a 10 year period, at 230kV specification. Each segment is anticipated to be complete and re-energized within one month. The existing right-of-way is inadequate and will be expanded in most areas and re-routed in others. An Environmental Assessment (EA) is complete for this project and has been issued for final publication. The first 30 mile segment between Havre and Verona is complete. This year 11 miles total will be reconstructed, 8 of which will be completed on the Verona end of the Verona-Rainbow circuit and 3 of which will be completed on the Rainbow end and re-terminated into NorthWestern Energy’s (NWE's) Great Falls Substation (also see project 2. Below). A maximum outage of 3 weeks is expected mid August following irrigation season peak loading. Upon completion of each segment, the line will continue to be energized at 161kV until such time that conversion to 230kV is required. Additional system impact study analyses will be required and preformed prior to the 230kV voltage conversion. No interruption of customer service during construction is anticipated.

Frank E. Jarvenpaa(406) 247-7384

(WAUM)

Shelby 2 Substation Reactor Replacement Project

230/115 Fall 2011 .2 Western currently owns, operates and maintains the Shelby 2 230/115/12.47 kV Substation. The existing 6.5 MVA oil filled reactor has reached its reliable life cycle and is scheduled to be replaced. System studies were conducted to size a new unit based on current system operating conditions and topology. A 12 MVA air core unit has been delivered and available for installation. This project was scheduled for 2010 but was postponed due to higher priority projects. It is now scheduled for 2011 installation. No interruption of customer service during construction is anticipated.

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Rainbow Substation Transformer Replacement & Relocation

161/100 Fall 2011 .4 Western currently owns, operates and maintains a 161/100kV, 45 MVA auto-transformer and breaker bay in NWE's Rainbow Substation. Western will replace and relocate this transformer with a new three-phase unit away from the Missouri River, reducing this potential environmental hazard. The new 100 MVA unit will be relocated approximately two miles from the existing site in NWE’s 230 kV breaker

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and one-half Great Falls Substation. The existing 161 kV circuit will be re-terminated at this location late 2011. The Environmental Assessment (EA) for the Havre to Rainbow 161 kV Rebuild/Upgrade included the relocation of Western’s Rainbow transformer bank. The new 100 MVA transformer has been delivered to the site and is specified with a dual HV winding for energization at 161 kV or 230 kV. Western’s control building and associated protection will be installed and commissioned during the summer of 2011. Upon completion of communications with NWE, Western will make the final cut-over and energization from the Rainbow substation to the Great Falls substation. Western anticipates this may occur as early as August and no later than December 2011. No interruption of customer service during construction is anticipated.

Havre Substation Upgrade 161/115 2012 .2 Western currently owns, operates and maintains the Havre 161/115/12.47kV Substation. Upgrades are a result of needed relaying replacements and a new 115 kV interconnect for network load. The existing 115 kV single breaker and bypass will be replaced with a ring bus configuration serving the existing Shelby circuit and new network service interconnect. Construction design is complete. The control building and protective relaying will be installed summer of 2011. Completion of the yard work will occur 2012. No interruption of customer service during construction is anticipated.

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Fort Peck Hydro Plant Reactor Replacement Project

161/115 Summer 2011

.2 Western operates and the Corp of Engineers owns and maintains the Fort Peck 13.8/115/161 kV Substation. The existing 15.4 MVA oil filled reactor has reached its reliable life cycle and is scheduled to be replaced. The unit is currently being reconditioned with an increased rating of 20 MVA. Delivery is expected Spring 2011 and installation by the Corp of Engineers is scheduled immediately thereafter. No interruption of customer service during construction is anticipated.

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New 161/115 kV Substation between Richardson Coulee and Malta Substations

161/115 Spring 2013

.2 Western currently owns, operates and maintains the 180 mile Fort Peck-Richardson Coulee-Malta-Harlem-Havre 161kV circuit, which is constructed for future 230kV conversion. A new substation is anticipated to be installed approximately 18 miles East of Malta in the 49 mile section between the Richardson Coulee and Malta Substations. This new substation will provide a 161kV ring bus constructed at 230kV specification, 161/115kV transformation and a 115kV tap for a new 115kV line that will extend approximately 48 miles to serve an ultimate 22 MW of new oil development load. VAR support will include approximately 15 MVAR shunt capacitance at the new 161 kV substation and a 15 MVAR shunt capacitance at the load. Construction is anticipated to begin in the Fall of 2011 with initial energization and partial load being served Spring of 2013. No interruption of customer service during construction is anticipated.

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LIST OF ANNUAL PROGRESS REPORTS TO WECC - 2011ROCKY MOUNTAIN POWER AREA




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Dry Fork Station 390 6/2011 38 The Dry Fork Station is a 390 MW net coal fired station under construction and scheduled to be in commercial operation in June of 2011. It is located at the Dry Fork Substation.

Matthew Stoltz701-557-5647

(BEPC)

Wygen3 Generation Project 110 4/1/2010In-

service & complete

.2 The Wygen3 Generation Project consists of the addition of mine mouth coal-fired generation at the Wyodak generation complex near Gillette, Wyoming. The addition adds a 110 MW air-cooled steam unit at the site, and will interconnect to the Donkey Creek 230 kV substation via 13.8:230 kV step-up transformer. The Wygen3 unit began construction in 2008 and was placed into commercial operation in 2010.

Wes Wingen605-721-2268

(BHP)

Pumpkin Buttes – Windstar 230 kV Transmission Line

230 2010In-

service & complete

.2 The Pumpkin Buttes-Windstar 230 kV line consists of approximately 60 miles of 1272 ACSR ‘Bittern’ conductor on wood H-frame poles. The line was constructed to provide needed Common Use System (CUS) transmission capacity, accommodate projected load growth, and increase Wyodak area stability margins. The Pumpkin Buttes – Windstar line was placed into service in 2010.

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Reno Junction 200 MW Wind Farm

200 230 2010 .2 The Reno Junction Wind Farm is a proposed generation project consisting of one hundred thirty-four (134) GE 1.5 MW wind turbines. The generation project will interconnect to the Pumpkin Buttes 230 kV substation via a radial 230 kV line. The project has an executed LGIA that is under suspension. There are no changes to the status of this project from the 2010 Progress Report submittal.

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Minnekhata 230 kV Substation

230 2011 .2 The Minnekhata 230 kV substation is required to provide additional 230:69 kV transformation capacity in the southern Black Hills. The station will tap the existing Westhill-Osage 230 kV line approximately 9.7 miles from the Westhill substation and will include a 70 MVA 230:69 kV transformer. Reliability analysis for this project was initially performed as part of the 2008 BHBE LTP Study. Construction on the substation is scheduled to begin in 2010 and is expected to be complete in 2011.

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Baculite Mesa Generation Project

400 1/1/2012 .2 The Baculite Mesa Generation Project consists of the addition of approximately 400 MW of generation interconnected to the Baculite Mesa 115 kV substation. The substation will be located north-northwest of the Pueblo Memorial Airport in Pueblo County, CO. The project will add two 100 MW GE LMS-100 natural gas-fired combustion turbines at the site, as well as two additional 100 MW plants, each consisting of a pair of 40 MW LM6000 natural gas combustion turbines and one 20 MW steam turbine, operated in combined cycle mode. The plant will interconnect to the Baculite Mesa 115 kV substation via 13.8:115 kV step-up transformers. Construction began in 2010 and is expected to be in commercial operation by January 1, 2012. An additional 100 MW LMS-100 CT interconnection has been requested at this location, and System Impact Studies aer currently underway to identify any impacts to the local 115 kV transmission system. The in-service date for the additional 100 MW unit is January 1, 2013..

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(BEPC)Weston Wind I 250.7 MW Wind Farm

250 11/2012 .2 The Weston Wind I Wind Farm is a proposed generation project consisting of one hundred nine (109) Siemens SWT-2.3-93 2.3 MW wind turbines. The generation project will interconnect to a new substation on the Wyodak-Osage 230 kV line approximately 6 miles northwest of the existing Osage power plant in Weston County, Wyoming. The customer has completed the System Impact Study phase, and a Facilities Study Agreement has been tendered. The SIS report for this project is included to be considered the Comprehensive Progress Report.

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Teckla-Osage 230 kV Transmission Line

230 2014 .2 The Teckla-Osage 230 kV line will consist of approximately 60 miles of 1272 ACSR ‘Bittern’ conductor on H-frame poles. The line will be constructed to provide needed Common Use System (CUS) transmission capacity, accommodate projected load growth, and increase Wyodak area stability margins. Reliability analysis for this project was initially performed as part of the 2008 BHBE LTP Study. The Teckla-Osage line construction was delayed and is now scheduled to begin in 2013, and is expected to be complete in 2014. The construction delay was the only change to this poroject from the 2010 Progress Report submittal.

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St. Onge 230 kV Substation

230 2014 .2 The St. Onge 230 kV substation is required to provide additional 230:69 kV transformation capacity in the northern Black Hills. The station will tap the existing Lange-Lookout 230 kV line approximately 10 miles from the Lookout substation and will include a 150 MVA 230:69 kV transformer. Reliability analysis for this project was initially performed as part of the 2008 BHBE LTP Study. Construction on the substation has been delayed and is now scheduled to begin in 2013 and is expected to be complete in 2014. The one-year delay is the only change to this project from the 2010 Progress Report submittal.

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Osage-Lange 230 kV Transmission Line

230 2015 .2 The Osage-Lange 230 kV line will consist of approximately 75 miles of 1272 ACSR ‘Bittern’ conductor on H-frame poles. The line will be constructed to provide needed Common Use System (CUS) transmission capacity and provide an additional path to the Rapid City load center. Reliability analysis for this project was initially performed as part of the 2008 BHBE LTP Study as specified in Attachment K to the BHBE OATT. The Osage-Lange line construction was delayed and is now scheduled to begin in 2013. The project is still expected to be complete in 2015. The delay in the construction start date is the only change to this project from the 2010 Progress Report submittal.

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Dixon-Horseshoe 230 kV Line

230 5/2012 .2 Add a 9-mile hybrid line from southwest Fort Collins, Colorado to north Loveland, Colorado to be in-service May 2012. The project involves WAPA-RMR and TSGT facilities and will have no regional impacts. The purpose of the project is to provide a second 230 kV source to the Loveland load-serving area.

Jeremy Brownrigg(970) 266-7979

(PRPA)






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(BEPC)Fordham-Fort St. Vrain 230 kV Line

230 9/2011 .2 Add a 21-mile hybrid line from south Longmont, Colorado to Platteville, Colorado to be in-service September 2011. The project involves PSCo, TSGT, and WAPA-RMR facilities and will have no regional impacts. The purpose of the project is to provide a second 230 kV source to the Longmont load-serving area.

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Portner 230 kV Substation 230 7/2010In-

Service & Complete

.2 Add a 1-mile double-circuit underground 230 kV to sectionalize the Harmony-Boyd 230 kV line in south Fort Collins, Colorado. The project has no regional impacts. The purpose of the project is to provide a new load-serving delivery point to the Fort Collins area. This project was completed October 2010.

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Laporte 230 kV Substation Expansion

230 5/2012Post-poned

.2 Reconfigure an existing 230/115 kV substation with a 230 kV breaker-and-a-half yard to connect four adjacent transmission lines (converting one from 115 to 230 kV) and two 230/115 kV autotransformers in Laporte, Colorado to be in-service May 2012. The project will have no regional impacts. The purpose of the project is to improve reliability in the northwest part of the Foothills Area system.

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Chambers 230/115 kV Interconnection Project

230 2010In-

Service & Complete

.1 This project includes the construction of approximately ten miles of 230 kV transmission and a new 230/115 kV autotransformer and is required to accommodate new generation. The project was placed in service in December 2010.

Thomas W. Green303-571-7223

(PSC)

Comanche Unit #3 750 345 5/2010In-

Service & Complete

45 1200 MVA 9 9 8 8The project is to construct Comanche Unit 3, a new 750 MW generator, and two Comanche – Daniels Park 345 kV transmission lines. A comprehensive Progress report was submitted February 23, 2006. The report was subsequently distributed to PCC and TSS. The transmission was placed in service in December 2009.

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Midway-Waterton 345 kV Transmission Project

345 5/2011 .2 This project consists of an 82-mile 345 kV transmission circuit between the Midway and Waterton substations. The project will improve local system reliability and is pursuant to Colorado Senate Bill 07-100 to facilitate potential generation resources in the state. It was originally reported as a means to accommodate the 500 MW Squirrel Creek generation project, but is now planned for other future generation in southern Colorado. The in-service date has been modified from the fall of 2010 to May 2011. A technical study report that can be considered to be a comprehensive progress report was included with the PSCo 2010 Annual Progress Report. The report was used as an exhibit to an application for a Certificate of Public Convenience and Necessity before the Colorado Public Utilities Commission.

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Cedar Creek #2 Generation

250 Q2/2011 .1 Planned wind farm to interconnect at Keenesburg 230 kV. “






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(BEPC)Cedar Point Wind 250 Q4/2011 .1 Planned wind farm to interconnect at Missile Site 230 kV. “

Pawnee – Smoky Hill 345 kV Transmission Project

345 5/2013 .2 This project consists of constructing approximately 96 miles of 345 kV transmission between the Pawnee and the Smoky Hill Substations. The project will improve local system reliability and is pursuant to Colorado Senate Bill 07-100 to facilitate potential generation resources in the state. The project is to accommodate additional generation in northeast Colorado and is scheduled to be in service by May 2013. A technical study report that can be considered to be a comprehensive progress report was included with the PSCo 2010 Annual Progress Report. The report was used as an exhibit to an application for a Certificate of Public Convenience and Necessity before the Colorado Public Utilities Commission.

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San Luis Valley-Calumet-Comanche Transmission Project

2013 .2 1000-1500 MW

This project is being developed jointly with Tri-State Generation & Transmission. It consists of building double-circuit 230 kV transmission from the San Luis Valley Substation in south-central Colorado to a new Calumet Substation, near Walsenburg, Colorado, and then double-circuit 345 kV transmission from Calumet Substation to the Comanche Substation, near Pueblo, Colorado. The project will improve local system reliability and is pursuant to Colorado Senate Bill 07-100 to facilitate potential generation resources in the state. This project is expected to accommodate approximately 1000-1500 MW of resources interconnecting at or near the San Luis Valley Substation and/or the Calumet Substation. The project was previously reported to be in service by 2013, but is now planned to be in service in 2016. A technical study report that can be considered to be a comprehensive progress report was included with the PSCo 2010 Annual Progress Report. The report was used as an exhibit to an application for a Certificate of Public Convenience and Necessity before the Colorado Public Utilities Commission. Project also included under TSGT report.

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Comanche Unit #3 750 Q2/2010In-

Service & Complete

.1 Planned unit. “

Lamar-Front Range Transmission Project

345 2017 .4 This project is being developed jointly with Black Hills Energy and Tri-State Generation & Transmission. It consists of building 345 kV transmission that would originate in the southeast Colorado, at or near the existing Lamar Substation. The project anticipates three basic sections of 345 kV transmission emanating from Lamar:

a)Lamar to the existing Comanche Station, near Pueblo, CO; length would be approximately 145 miles.b)Lamar to the planned Missile Site Substation, near Deer Trail, CO. The transmission would also interconnect with the existing Burlington and Big

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(BEPC)Sandy substations; total length would be approximately 225 miles.c)Lamar to a new Vilas Substation in Baca County, CO; length would be approximately 60 miles.

The project will improve local system reliability and is pursuant to Colorado Senate Bill 07-100 to facilitate potential generation resources in southeast CO and is planned to be in service in 2017.

Big Sandy-Lincoln-Midway 230 kV Line Uprate

230 Q4/2011 .2 613 MVA Uprate of the existing 56 mile, 1272 ACSR, 230 kV line from the 50 degree C rating of 336 MVA to 100 degree C rating of 613 MVA. Expected completion date is fourth quarter 2011.

Mark Graham303-254-3517

(TSGT)

Erie 230/115 kV Transformer

230/115 Q2/2011 .1 250 MVA New transformer rating is 250 MVA. This is a joint project with Western with an expected operating date of second quarter 2011.

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Story-Erie 230x115 kV Double Circuit Line

230 Q2/2011 .2 613 MVA This is a joint project with Western. The existing Story-Beaver Creek-Hoyt-Erie 115 kV line is being converted to double circuit 230 kV (~78 miles). The Story-Erie 230 kV circuit will have a rating of 613 MVA at 100 degrees C design temperature. The rating of the Beaver Creek-Erie 115 kV circuit will be 306 MVA. Construction began March 2008 with an expected operating date of second quarter 2011.

TOT3 Archer Interconnection Project (previously known as the 300 MW Path 36 Upgrade)

345/230 Q4/2013 25 300 MW 2 28 1 6 1New 345/230 kV substation (called Arrow Substation) tapping the LRS-Story 345 kV line adjacent to Archer Substation. A 230 kV interconnection from Arrow to Archer and a new 10 mile 230 kV line to connect Arrow to Cheyenne. Planned in service date is fourth quarter 2013.

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Airport-Weld 230 kV Line 230 6/2011Cancelle

d

.2 613 MVA This new line will be 8 miles, consisting of 1272 ACSR with a 100 degrees C rating of 613 MVA. This will likely be a joint project with Western, and perhaps also PRPA and PSCO. This project has been cancelled.

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Ault-Timberline 230 kV Line Extension to Carey Substation

230 10/2013Cancelle

d

.2 613 MVA Extend the existing Ault-Timberline 230 kV line approximately 3 miles (in and out approximately 6 miles) to the new Carey Substation. The line will consist of 1272 ACSR with a 100 degrees C rating of 613 MVA. This could be a joint project with PSCO. This project has been cancelled.

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San Luis Valley-Calumet-Comanche Transmission Project

230/345 Q2/2015 .3 1000-1500 MW

This project is being developed jointly between Xcel Energy and Tri-State G&T. It consists of constructing high voltage transmission from the San Luis Valley Substation in south-central Colorado to a new Calumet Substation, located along the existing Comanche-Walsenburg 230 kV line, near Walsenburg, Colorado. From Calumet, new double circuit 345 kV line will be constructed north to Comanche Substation, in Pueblo, Colorado. Additionally, a new 230 kV line will be built from Calumet to Walsenburg. The project will improve local

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(BEPC)system performance and reliability, and will facilitate potential generation as part of Xcel Energy’s response to Colorado Senate Bill 07-100 which calls for development of transmission facilities to deliver power from renewable resource zones in Colorado. Thie project is planned to be in service in second quarter 2015.

Cheyenne Substation Stage 03

230 Q2/2010In-

Service & Complete

.5 Construction of four-breaker 230 kV ring bus configuration and two 230/115 kV, 200 MVA transformers. Energized 2nd quarter 2010.

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Miracle Mile Substation Stage 03

230 Q2/2010 .5 Installation of two 230/115 kV, 200 MVA power transformers, and associated equipment. Installation of two 30 MVAR shunt reactors.

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Erie-Hoyt 230 kV Transmission Line

230 Q3/2010 .5 Rebuild existing Erie-Hoyt 115 kV transmission line with 230 kV transmission line double circuit single pole steel. One circuit will be energized at 115 kV. Beaver Creek – Hoyt 230 kV transmission line is complete, Erie – Hoyt 230 kV transmission line is complete. The Story-Henry Lake section is energized at 230 kV; waiting on completion of the Erie 230 kV yard by Tri-State to fully energize at 230 kV..

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Ault Substation Stage 03 230 Q4/2010 .5 Construct a 230 kV line terminal into the existing Ault 230 kV yard, including one 230 kV circuit breaker and three 230 kV disconnect switches.

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Weld Substation 230 kV Additions

230/115 Q2/2012 .4 Addition of a third 230/115 kV 150 MVA transformer. “

TransWest Express Project 600 kV HVDC 2016 3 3000 2 The TWE Project is a 600 kV HVDC bi-pole transmission line and associated terminal facilities extending approximately 725 miles from south-central Wyoming to southeastern Nevada. The TWE Project has a north-to-south Planned Rating of 3000 MW delivered to the TWE southern terminal. The WECC Regional Planning Project Review process was completed on June 3, 2008, for the TWE Project. The TWE Project entered Phase 2 of the WECC Project Rating Review Process on February 1, 2010.

David Smith(303) 299-1545

TWE

Wyoming Colorado Intertie 345 2014 2 TOT3 +900 MW

2 WCI is an approximately 180-mile, 345 kV transmission line between Laramie River Station in southeastern Wyoming and Pawnee in northeastern Colorado. WCI has a Planned Rating that will add 900 MW to the TOT3 (WECC Path 36) path rating. The WCI project is owned by Wyoming Colorado Intertie, LLC, a member of the LS Power Group of companies.

Bill Pascoe(406) 494-2075WCI Consultant


LIST OF ANNUAL PROGRESS REPORTS TO WECC - 2011ARIZONA – NEW MEXICO - NEVADA POWER AREA




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Palo Verde – Delany 500 kV line

500 2013 .2 The project will increase the export/scheduling capability from the Palo Verde area to provide access to both solar and gas resources. This is a joint participation project with APS as the project manager. The initial plan of service for the project will be a 500 kV line between the Palo Verde Switchyard and Delany Switchyard. This line is approximately 15 miles.

Peter Krzykos602 250-1649

(APS)

Delany – Sun Valley 500 kV line

500 2014 .3 This project will include development of a new Sun Valley station in the north of Phoenix in the area of the CAP’s Hassayampa Pumping Station, and a 500 kV transmission line approximately 35 miles long connecting the new site with the Delany 500 kV high voltage yard. It also consists of the 500/230 kV transformer with associated 230 kV station at Sun Valley. This new line will be needed to serve projected need for electric energy in the Northwest part of the Phoenix metropolitan area. It will increase the import capability to the Phoenix metropolitan area as well as increase the export capability from the Palo Verde area. The Arizona Corporation Commission (ACC) approved APS’ preferred route for this new line. It is anticipated the line will be a joint participation project with APS, SRP, and the Central Arizona Project (CAP) with APS the project manager.

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Morgan (TS9) – Pinnacle Peak 500kV line

500 2011In-Service

& Complete

.2 This project will add import capability to the Phoenix Metropolitan area and strengthen the transmission system on the east side of the Phoenix Metropolitan valley. This project consists of approximately 26 miles of 500 kV single-circuit line from the Morgan substation to a new 500 kV Pinnacle Peak station near the existing 230 kV Pinnacle Peak station and will include 500/230 kV transformers at Pinnacle Peak. This project also consists of looping one of the Southern Navajo lines north of Westwing in and out of the Morgan 500 kV station and will include a 500/230 kV transformer at Morgan station. It is anticipated the line will be a joint participation project with APS and SRP with APS the project manager. (The TS9 Substation hs been renamed to the Morgan Substation.) This project was completed and line energized in November 2010.

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Palo Verde (or vicinity) – North Gila 500-kV line

500 2014 .2 This project will provide transmission capacity and import capability into the Yuma area required to supplement limited transmission and generation resources in the Yuma area. This project consists of approximately 115 miles of single-circuit 500kV line from the Palo Verde ( or vicinity ) substation to the existing North Gila 500 kV substation and will include a 500/230 kV transformer at North Gila. It is anticipated the line will be a joint participation project. The expected in-service date is 2014.

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APS 230 kV Projects 230 2008-2010 .6 Various 230 kV system upgrades that are designed to increase load serving capability, voltage support and enhance reliability of APS’ transmission system performance will be reported to WECC in the document entitled ‘Summary of Significant Transmission Additions and Changes’. The reported system facility additions will not have a significant impact upon the WECC bulk interconnected transmission system performance and a Progress Report will not e made..Morgan-Raceway-Avery-Scatter Wash (TS6)-Pinnacle Peak 230 kV line (in-

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service 2013)Sundance-Pinal Central 230 kV line (in-service 2014)Sun Valley-Trilby Wash 230 kV line (in-service 2014)North Gila-TS8 230 kV line (in-service 2014)Palm Valley-TS2-Trilby Wash 230 kV line (in-service 2015)

Sun Valley – Morgan (TS9) 500 kV line

500 2016 .2 This project will add scheduling capability between the Palo Verde hub and the Southern Navajo system near Westwing. This project consists of approximately 40 miles of 500 kV line from the Sun Valley substation to a new 500 kV Morgan station near the existing 230 kV Raceway station. It is anticipated the line will be a joint participation project with APS, SRP and CAP with APS the project manager. The expected in-service date is 2016. (The TS9 Substation has been renamed to the Morgan substation.)

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Navajo Transmission Project Segment 1

500 2016 1 1600 2 This project is the construction of a new 500 kV transmission line starting at the Four Corners 500 kV switching station and terminating at a switchyard south of the Navajo 500 kV switching station. As a result of this project, the nomogram for Path 22 will be eliminated and the two components of the path will be separated into Path 22A (Four Corners-Moenkopi and DREP-RME 500 kV) and Path 22B (Four Corners-Cholla #1 & #2 345 kV). Path 22A will have a non-simultaneous rating of 3190 MW and Path 22B will have a non-simultaneous rating of 1370 MW. Path 23 (Four Corners 500/345 kV) will have a rating of 1040 MW.

Tom JohnsSithe Global

509-926-3485

Great Basin Transmission SWIP-South Project

500 2014 12 +/- 2000 MW

2 3 1Great Basin Transmission’s SWIP-South Project represents further development of the ONLine Project. Install 70% series compensation on Robinson Summit-Harry Allen 500 kV line, 35% at each end. Install two 600 MVA 345/345 kV Phase Shifting Transformers (+/- 48 degrees each) at Robinson Summit: one connected towards Falcon and the other connected towards Gonder. Construct an extending 500 kV circuit from NV Energy’s Harry Allen substation to SCE’s Eldorado substation (~60 miles), with 70% series compensation at Harry Allen. Plan of service also includes a +150 MVAR shunt capacitor at the Robinson Summit 345 kV bus, and a +400 MVAR SVD (4x100 MVAR steps) at the Robinson Summit 500 kV bus. Phase 2 Rating studies in progress, anticipated completion ~Q2 2011

Evan EstesLS Power

Development, LLC636-532-2200

Great Basin Transmission SWIP-North Project

500 2014 12 +/- 2000 MW

2 3 1Great Basin Transmission’s SWIP-North Project consists of a new 500 kV line from Idaho Power’s Midpoint substation to a new proposed Robinson Summit substation near Ely, Nevada (~275 miles). Install 70% series compensation (for 245 mile line impedance) as follows: 35% at Thousand Springs (located !125 miles south of Midpoint) and 35% at Robinson Summit. Phase 2 Rating studies in progress, anticipated completion ~Q2 2011.

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Harry Allen Combined 500 500 6/1//2011 .1 The project is to interconnect a new 500 MW Combined-Cycle generator to the Edi von Engeln






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Cycle and 500 kV Line Harry Allen 500 kV switchyard and construct a triple bundled 1590-ACSR circuit on single circuit structures from Harry Allen 500 kV switch yard to the new Harry Allen Combined Cycle Generating Plant. NVE is currently performing Sub-Synchronous Resonance (SSR) assessment to identify possible adverse effects and required mitigations for this generating facility.

NV Energy South(775) 834-4456

McDonald 230/138 kV Additions

230/138 6/1/2014 .1 NV Energy plans to add a new 336 MVA 230/138 kV transformer at the existing McDonald substation. The existing Arden – Decatur 230 kV line will be folded into the new McDonald substation.

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Equestrian 500/230 kV Substation

500/230 2014Cancelled

.5 The Equestrian project is needed to deliver bulk power to Las Vegas off the Harry Allen to Mead 500 kV line and consists of the following: Equestrian North 500/230 kV substation and Equestrian-Faulkner 230 kV line #2. The necessity of this project has been supplanted by better alternatives and this project has been cancelled.

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Brooks 230/138/12 kV Substation and Pecos – Brooks 230 kV Line

230/138 2017 .1 The addition of a new 230 kV transmission line between Pecos and the future Brooks substation site along with folding in the 138 kV sub-transmission between Leavitt and Gilmore substations into the Brooks substation will eliminate N-1 low voltage issues. .

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Sunrise 500/230 kV Transmission Substation

500/230 2018 .6 1To increase import capability into the NEVP system, the Sunrise Project taps the Harry Allen-Mead 500 kV transmission line with two 1500 MVA 500/230 kV transformers and Integrates the Sunrise 230 kV facility with existing 230 kV Nevada Power Company facilities

Northwest 500/230 #2 Transformer Addition

500/230 6/1/2018 .1 Install three 500/230 kV, single phase autotransformers with a rating of 300/400/500 MVA at the existing Northwest substation.

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Sunrise 500/230 kV #2 Transformer Addition

500/230 6/1/2020 .1 This is a second 500/230 transformer addition at Sunrise, which will fold in the existing Harry Allen – Mead 500 kV #1 line.

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Northern New Mexico 345 kV Transmission Project

345 2019+

delayed

.8 The project consists of an estimated 71 miles of new 345 kV transmission from a tap point on the existing San Juan to Ojo 345 kV line to the Rio Puerco station approximately 20 miles north and west of Albuquerque. The existing line would be tapped approximately 2/3 of the distance from San Juan. The project is expected to increase Path 48 transfer capability by 700 MW. The project has now been deferred outside of PNM’s 10-yr planning horizon due to the fact that near-term need for the magnitude of increased capacity on Path 48 that this project would add is not required during this timeframe. This timing will be reassessed as conditions change.

Tom Duane(PNM)

505-241-4569

Expansion of the Rio Puerco 345 kV Station

345 2011-2014 .4 The project consists of expanding the Rio Puerco Substation by looping in the existing BA-West Mesa 345 kV line and adding a 345/115 kV autotransformer (Phase 1) and looping in the San Juan-BA 345 kV line (Phase 2). Phase 1 of

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this project is currently scheduled to be in service in 2011. Phase 2 of this project is currently scheduled to be in service in 2014.

Pinal County 500 kV Projects (Southeast Valley Project)

500/230 kV 2011-2014 .5 1500 MW This project provides major support to SRP’s local transmission network and delivers bulk power from the Palo Verde/Hassayampa hub generation to the Central Arizona, Tucson area, and Southeast Phoenix Valley load. The preliminary technical study indicated the project can obtain an approximate total transfer capability (TTC) of 1,405 MW. The project consists of the following line segments: 1) Hassayampa-Pinal West. The construction of this first line segment from Hassayamampa to Pinal West was completed and has been in-service as of October 2008. 2) Pinal West-Pinal Central-Abel-Browning. SRP is in the process of designing and acquiring right-of-way for the individual segments that comprise this transmission line project and constructing the project in segments. The Abel Substation is a new intermediate point between Pinal Central and Browning. Both Pinal Central and Abel Substations are envisioned as interconnection points for 500 kV and 230 kV transmission lines to bolster the EHV system and power delivery to local load serving entities in Pinal County. The estimated in-service date for the Pinal West to Pinal Central segment and the Pinal Central Substation is 2014. The Pinal Central to Abel to Browning segment was placed in service in the fall of 2010 at 230 kV and will be energized at 500 kV in 2014.

John Hernandez(602) 236-0968

(SRP)

Desert Basin-Pinal Central 230 kV Line

230 2014 .2 This 230 kV transmission project is projected to be in service in 2014. The project is envisioned to build approximately 21 miles of 230 kV line to connect the Desert Basin Power Plant and the Pinal Central Substation. This new 230 kV tie will eliminate the need for a Remedial Action Scheme (RAS) currently required in the event of a critical contingency outage at the Desert Basin Station. In addition, the line will provide SRP with increasing transmission capacity to supply load growth in the southeast valley.

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Randolph-Abel-Dinosaur 230 kV Line & Abel 230/69 kV Transformer

230/69 2011 .1 This 230 kV transmission project is projected to be in service for summer 2011. The project is to be constructed to support the full output of the TransCanada Coolidge Generating Station. By 2011 Abel substation will be looped into the Randolph-Dinosaur 230 kV line. Abel substation will have its first 230/69 kV transformer constructed and energized by April 2011.

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Randolph-Pinal Central 230 kV Line

230 2014 .1 This 230 kV transmission project is projected to be in service by 2014. The project is to be constructed to support a completed TransCanada Coolidge Generating Station.

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Schrader-Abel 230 kV Line 230 2019 .1 This 230 kV transmission project is projected to be in service by 2019. “

Kyrene 500/230 kV Transformer

500/230 4/2012 .1 A third Kyrene 500/230 kV transformer will be constructed and energized by April 2012. APS is participating with SRP on the transformer.

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Rudd 230/69 kV 230/69 4/2013 .1 The first Rudd 230/69 kV transformer will be constructed and energized by April “






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Transformer 2013.

Schrader 230/69 kV Transformer

230/69 4/2014 .1 A second Schrader 230/69 kV transformer will be constructed and energized by April 2014.

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Other Joint SRP/APS Projects

500 2011-2016 .2 SRP and APS jointly plan to construct the following transmission facilities: Palo Verde-Delany (Harquahala Junction) 500 kV Line (in-service date 2013) Delany (Harquahala Junction)-Sun Valley (TS5) 500 kV Line (in-service date remains 2014. Morgan(TS9)-Pinnacle Peak 500 kV Line (in-service date 2011). Palo Verde-North Gila 500 kV Line (in-service date remains 2014). Sun Valley (TS5)-Morgan (TS9) 500 kV Line (in-service date 2016).

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Other SRP 115/230/345 kV Transmission Projects

115/230/345 2014 .2 RS26, formerly Fountain Hills Station-115 kV, 230 kV or 345 kV from Stewart Mountain, Goldfield or APS’ Cholla-Pinnacle Peak 345 kV Line (in-service date moved beyond SRP’s 10 year plan).RS17 Loop-In (in-service date moved beyond SRP’s 10-year plan).

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SunZia Southwest Transmission Project

500 12/2014 4 3000 MW 2 1 1The SunZia Southwest Transmission Project is a major new 500 kV transmission project managed by SouthWestern Power Group (SWPG) that is envisioned to provide additional transmission interconnections and transmission capacity between central New Mexico and central Arizona. The project is currently envisioned to be comprised of two 500 kV lines from the proposed renewable resource energy zone in central New Mexico (referred to as SunZia East) to the proposed Pinal Central 500 kV Substation (to be operated by SRP) in central Arizona. Two intermediate electrical interconnections are being examined. The first will be at a new 500 kV substation (refered to as SunZia South) to be located near the existing Luna 345 kV Substation in southwestern NM (operated by EPE). The second interconnection is at the proposed Willow 345 kV Substation (to be operated by TEP) in southeastern AZ. On 7/12/07, PCC accepted the SunZia Regional Planning Process Report as complete and on 7/27/09 the project was granted Phase II status and a planned rating of 3000 MW. The project is currently in Phase II of the WECC Three Phase Rating Process.

Jim Hsu(SWPG)

(480) 838-1427

Pinal Central (previously Pinal South) – Tortolita 500 kV Line

500 2014 .2 TEP plans to construct a 500-kV line from the proposed Pinal Central Substation to TEP’s Tortolita Substation. The expected in-service date for this project is 2014. TEP conducted an open season to solicit interest in participation in this project. A Memorandum of Agreement has been executed for cost sharing for study, siting, and environmental work among the project participants. TEP is leading the study, siting and environmental effort for the project participants.

Brandon Phan(TEP)

(520) 777-6753

Willow 345 kV Switchyard 345 2015 .1 TEP plans to construct the Willow 345 kV switchyard to accommodate a generator interconnection request. This switchyard will accommodate the lines to the generator and loop-in TEP’s Greenlee – Winchester 345 kV line. The

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scheduled in-service date has been delayed to 2015.

Tortolita-South 345 kV line 345 2020 .1 The project will tie two of TEP’s import points together. At this time, the project is expected to be in-service in 2020 but the schedule is tentative. Initial studies are expected to begin soon.

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Vail-South #2 345 kV line 345 2020 .1 Schedule is tentative and subject to change following the completion of study work to be conducted by TEP. A Comprehensive Progress Report will be issued when design studies are complete.

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Westwing – South #2 345 or 500 kV Line or Pinal West – South #2 345 or 500 kV Line

500 or 345 2020 .05 Schedule is tentative and subject to change following the completion of study work to be conducted by TEP. A Comprehensive Progress Report will be issued when design studies are complete.

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Tortolita – Winchester 500 kV Line

500 2020 .05 This is a new 500 kV transmission line project. The schedule is tentative and subject to change following the completion of study work to be conducted by TEP.

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Winchester – Vail #2 345 kV Line

345 2020 .05 This is a second circuit between Winchester and Vail parallel to existing circuit. The schedule is tentative and subject to change following the completion of study work to be conducted by TEP.

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Winchester – Vail #3 345 kV Line

345 2020 .05 This is a third circuit between Winchester and Vail parallel to existing circuit. The schedule is tentative and subject to change following the completion of study work to be conducted by TEP.

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Springerville – Greenlee #2 345 kV line

345 2020 .05 The schedule for this project is tentative and subject to change following the completion of study work to be conducted by TEP.

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Tortolita – North Loop Project

500/345 2020 .2 TEP plans to construct two EHV lines between its Tortolita and North Loop substations. There are three competing projects: 1) Tortolita-North Loop 345 kV #1 and #2; 2) Tortolita-North Loop 500 kV #1 and #2; and 3) Tortolita-North Loop 345 kV and Tortolita-Marana-North Loop 345 kV. The selected project will be dependent on the project participants and is tentatively planned for 2020. Preliminary studies have been conducted as part of the Southeast Arizona Transmission Study (SATS) group. Additional study efforts will be undertaken prior to submitting a comprehensive progress report for the selected project.

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Vail – Irvington – South 345 kV Line

345 2020 .1 TEP plans to construct a 345 kV line between TEP’s Vail and Irvington substations and between TEP Irvington and South substations. The tentative in-service date is 2020. Preliminary studies have been conducted as part of the Southeast Arizona Transmission Study (SATS) group. Additional study efforts will be undertaken prior to submitting a comprehensive progress report for the project.

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Gateway Project (South – Gateway 345 kV line)

345/230/115 delayed .2 500 20 60+ 30 60+ 0 0 A comprehensive progress report was issued 2/25/05. New substation, Gateway, in Nogales, AZ to provide service to customers of Unisource Energy Services (UES) and to interconnect with Comision Federal de Electricidad (CFE). Two 345-kV lines will connect Gateway to TEP’s South Substation and two 230-kV lines will connect to CFE’s Santa Anna Substation in Sonora, Mexico. The UES 115-kV system will be extended from the Valencia Substation to Gateway and a 345/115-kV transformer will serve the UES load in the Nogales, AZ area. The planned capacity of this line is 500 MW following interconnection with CFE. The maximum transfer to CFE is expected to be 400 MW South. The submittal includes a system impact study dated April 2004. The project is delayed due to permitting issues. Studies for this project were completed in April 2004 and presented before the Southwest Area Transmission (SWAT) regional planning group in August 2004. Following this presentation, the report was distributed to TSS.

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Stirling Mountain – Northwest

230 9/2012 .1 320 MVA 1This project is 47 miles of 230 kV transmission. Project is currently under construction, approximately 50% complete.

Dale Broveak(775) 727-5312

VEA

Stirling Mountain – Vista 230/138 9/2012 .1 320 MVA This project is 25 miles of 230 kV transmission. 8 miles are completed, and the remaining 17 miles are under construction, approximately 50% complete.

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Vista – Charleston 138 12/2013 .1 192 MVA This project is 12 miles of 138 kV transmission. -

Vista – Pahrump 230 9/2012 .1 320 MVA This project is 11 miles of 230 kV transmission. -

San Luis – Rio Colorado Project

604 Q1/2013 170 This project consists of a 604 MW two-on-one combined cycle plant to be constructed one mile south of the Arizona (U.S.) / Mexico border. Interconnection will take place via two new 230 kV lines from the plant to the existing 161 kV Gila station and on to the existing North Gila station in Yuma, AZ

Leonard YorkWAPA-DSW

(602) 605-2797






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LIST OF ANNUAL PROGRESS REPORTS TO WECC - 2011CALIFORNIA-MEXICO POWER AREA




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Canyon Power Project 194 12/2011 1 A new generating facility to be located in the city of Anaheim (County of Orange) will have a maximum net plant output of 194.1 MW. The project consists of four (4) GE LM6000 simple cycle natural gas combustion turbines and interconnects to ANHM’s 69 kV electrical system. Planned operating date of first unit is July 2011 and the overall project completion expected by December of 2011.

Nam NguyenANHM

(714) 765-5122

Tecnologico 230 kV SVC 200 MVAR

230 3/2011 .2 A new SVC (-75 / +200 MVAr) will be connected at the Tecnologico 230 kV substation (20111 “TEK-230”) for local voltage support and to increase reactive margin in the Valley Area of the CFE Baja California system.

Jose SantamariaCFE

011 52 (686) 558-1541

El Centinela 230 kV Substation

230 11/2011 .1 A new substation “El Centinela” (20453 “CNT-230”) is planned to be built between buses 20111 (TEK-230) and 20112 (STB-230).

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Carranza 230 kV Substation

230 11/2011 .1 A new substation “Carranza” (20461 “CZA-161”) is planned to be built between buses 20153 (GOR-161) and 20147 (CTY-161).

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Trans-Bay HVDC Cable Project

+/- 200 kV HVDC

Complete & in-service

4/2010 .1 400 MW Babcock & Brown is developing this 50-mile submarine HVDC Transmission Project. The project will utilize voltage source converter technology (+/- 150 Mvar at 400 MW loading) and connect between PG&E’s Pittsburg 230 kV Substation and Potrero 115 kV Substation. It is expected that permitting will be completed by April 2007 and the project will then proceed into final design, materials procurement and construction. As of 03/08, construction has begun on both sides of the project. This project is being tested before it can be released for commercial operation. At this point, the expected in-service date of this project is April 2010.

Paul DidsayabutraCISO

(916)608-1281

Generation Projects 7684 5/1/08 – 11/30/14

1 The following are generation projects in the ISO generation interconnection queue that the facility studies have been completed and the interconnection agreements have been executed: Devers Substation – 850 MW – 2010 Tesla Substation 230 kV bus E – 1156 MW – 11/30/14 El Segundo 220 kV bus – 630 MW – 6/1/13 Devers-Palo Verde 500 kV line near Blythe – 520 MW – 2010 McCall Substation – 300 MW – 3/31/13 Eastshore Substation – 361 MW – 6/1/12 Between Cottonwood and Vaca-Dixon – 715 MW – 2010 Walnut Substation – 501 MW – 1/3/13 Imperial Valley Substation – 300 MW – 12/1/10

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Midway – Bannister Phase 1 Project

230 9/2011 .5 1The project is phase 1 of a four-phase long term program to facilitate the export of renewable energy from Imperial Valley. The first phase of the project consists of building 8.5 miles of 230 kV single circuit transmission line (prepared for double circuit) from Midway substation to the Salton Sea geothermal area. The project also includes the expansion/upgrade of the existing IID Midway Substation and 3.5-mile generator tie to the planned Geothermal Generation

David L Barajas760-339-9093

(IID)






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Facility.

Imperial Valley – Dixieland Substation 230 kV Interconnection

230/92 3/2012 .5 1The project consists of building approximately 8.0 miles of single circuit 230 kV line (prepared for double circuit) from Imperial Valley Substation (IV-Sub) to Dixieland Substation. Install a 230/92 kV 300 MVA transformer at Dixieland Substation and its associated bus modifications.

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Francis Way 230/92 kV Switching Station

230/92 2012Deferred

.5 1Build a 230 kV Switching Station to interconnect the existing 230 kV KS line between Coachella Valley and Ramon Substations. The project will include a 230/92 kV transformer and a 92 kV line extension to the existing Francis Way 92 kV distribution station.

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Ave 58 Substation 230/161/92 3/2012 .2 300 Install a new 161/92 kV 225 MVA transformer at Ave 58 substation. The new transformer will be installed in parallel with the existing 161/92 kV 125 MVA transformer.

“

Ramon Substation 230/92 kV Transformer Addition

230/92 6/2013 .2 Install a second 230/92 kV 225 MVA Auto-transformer. The new transformer will be installed in parallel with the existing transformer.

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Coachella Valley Substation, Replace 230/161/92 kV Transformers

230/161/92 2014, 2015

.5 Replace two 230/92 kV 150 MVA transformers with 230/92 kV 300 MVA transformers. Estimate completion date for bank #1 is 2014 and for bank #2 is 2015.

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Lake Elsinore Advanced Pump Storage Project (LEAPS)

500/600 500/230 Q3/2012 2.5 2000/1000 1 The LEAPS Project consists of two segments involving a 500/600 MW pump storage plant and new 500 KV & 230 KV transmission lines connecting the hydro plant to Southern California Edison’s (SCE) grid to the North and San Diego Gas and Electric’s transmission grids to the South. In addition to new transmission lines needed to connect the pump storage to existing transmission systems, the proposed transmission lines are also intended to provide a high capacity link between SCE’s main 500 kV grid and SDG&E 230 kV grid, providing a 500 kV connection to the northern part of the SDG&E system. By adding a future link between the Sunrise Project’s 500 kV Central Substation and the LEAPS-TE/VS Case Springs Substation, a 500 kV line would be formed across the western section of the 500 kV lines from the Palo Verde area to Serrano on the north and Imperial Valley on the south.. As of 9/25/08, notification was received that a new consultant (Siemens) has been hired to take this project through the WECC three-phase rating process.

Fred Depenbrock(352) 256-4475Siemens Energy

LA Basin Re-powering Projects:Haynes Phase 2Scattergood

600530 230

6/201312/2015

.5 No transmission is required for these re-powering projects except Scattergood.Scattergood requires a second 230 kV circuit from Scattergood to the Olympic Substation.

Ly Le213-367-0302

(LDWP)

MWC Wind Generation 100 5/2011 .1 New wind farm to interconnect at Intermountain 345 kV switchyard. “






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Owenyo Solar 200 12/2016 .1 New solar PV plant to interconnect at Cottonwood 230 kV substation. “

Intermountain Power Project DC Line Upgrade Project

500 DC 12/2010In-

Service & Complete

.3 From 1920 to 2400

3 This project is the DC converter upgrade to increase the rating of the existing IPP-Adelanto DC line. On 8/23/06, LADWP submitted a CPR on this project. On 11/8/06, the project was granted Phase 2 status. The first Project Review Group meeting was held 12/12/06. The Intermountain Power Project DC (Path 27) Line Upgrade Project was granted Phase III status on 10/3/07 by a letter of the PCC Chair after an extensive review and acceptance by the Project Review Group. The in-service date is re-scheduled to December 2010 from November 2010.

″

Planned Wind #12 204 10/2011 .1 New wind farm to interconnect with Barren Ridge-Rinaldi 230 kV. “

Planned Wind #7 204 10/2011Cancelle

d

.1 New wind farm to interconnect with Barren Ridge-Rinaldi 230 kV. “

Planned Solar #1 250 1/2012 .1 New solar thermal plant to interconnect with Marketplace-Adelanto 500 kV. “

Planned Solar #6 300 9/2012 .1 New solar PV plant to interconnect at Barren Ridge 230 kV substation. “


Planned Solar #5 352 5/2013 .1 New solar thermal plant to interconnect with McCullough-Victorville 500 kV. “

Planned Solar #4 352 12/2013 .1 New solar thermal plant to interconnect with Marketplace-Adelanto 500 kV. “


Planned Solar #2 250 5/2014 .1 New solar PV plant to interconnect at Barren Ridge 230 kV substation. “

Planned Wind #8 201 12/2014 .1 New wind farm to interconnect with Cottonwood-Barren Ridge 230 kV. “

Planned Solar #17 300 12/2014 .1 New solar PV plant to interconnect with Barren Ridge-Rinaldi 230 kV.. “

Castaic Modernization Project

1255 4/2014 .3 This project is the modernization of the Castaic Power Plant. Project is re-scheduled to April 2014 from June 2016.

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Scattergood-Olympic 230 kV line #1 Project

230 6/2014 .3 This project was identified in LADWP’s TPL-003 studies as a long-term resolution to potential overloads on the LADWP 230 kV system in the Los Angeles basin. This new line will parallel an existing 230 kV line between the Scattergood generating station and Receiving Station K. The Scattergood-Olympic 230 kV line #1 Project is expected to have no regional impact.

“

Barren Ridge Renewable Transmission Project

230 4/2015 .5 1LADWP is proposing to upgrade and build a new transmission line from Barren

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(formerly Barren Ridge – Castaic Transmission Project)

Ridge Switching Station, located 15 miles north of Mojave, to Castaic Power Plant near Santa Clarita. The Barren Ridge Renewable Transmission Project (BRRTP) will enable LADWP to interconnect up to approximately 1500 MW of wind, solar and other renewable resources from the Mojave Desert and Tehachapi Mountain areas that will be available in the next several years. The BRRTP is comprised of two new 230 kV lines from Barren Ridge Switching Station to Haskell Junction and a new Haskell Switching Station to be located north of Santa Clarita, just south of the Angeles National Forest. The planned in-service date is April 2014. These system additions/modifications will increase the transmission import capability from Owens Valley to approximately 1600 MW. BRRTP is expected to have no regional impact.

Mirant Marsh Landing Generating Station

888 2013 2 The Mirant Marsh Landing Generating Station (MLGS), a proposed project near Antioch, CA will consist of four Siemens Energy simple cycle combustion turbine-generator units. The units will be located adjacent to Mirant’s Contra Costa Power Plant and will interconnect to the existing PG&E Contra Costa Power Plant 230 kV switchyard through two 230 kV transmission lines. Each unit of the MLGS will have a net winter rating of 222 MW and a net summer rating of 193.5 MW. The expected commercial operation date for the MLGS is May 1, 2013.

Chuck Hicklin925-427-3544Mirant Marsh

Landing

Lodi Energy Center Project 280 6/2012 1.5 NCPA has submitted an interconnection request to the CISO for the Lodi Energy Center Project. The project consists of a 1x1 combined cycle generation plant utilizing an F-Class technology gas turbine with a net output of 280 MW to the CAISO controlled grid. The project will interconnect to PG&E’s Gold Hill – Lodi Stig and Lodi Stig – Eight Mile Road 230 kV lines via the existing NCPA Lodi Switching Station.

Michael DeBortoli916-781-4258

(NCPA)

Other Transmission Projects

230 2011-19 .5 Newark-Ravenswood 230 kV Line Reconductoring (5/2012)South of Birds Landing 230 kV Reconductoring (5/2010) In-ServiceTable Mountain-Rio Oso 230 kV Line Reconductor & Tower (12/2011)Gregg 230 kV Reactor (2/2011)Vaca Dixon-Birds Landing 230 kV Reconductoring (5/2011) In-ServiceWheeler Ridge 230/70 kV Transformer (5/2012)Lakeville-Ignacio #2 230 kV line (12/2011)Panoche-Helm 230 kV Reconductoring (1/2012)Rio Oso-Atlantic and Rio Oso-GoldHill 230 kV Line Reconductoring (5/2012)Midway-Morro Bay 230 kV Line Reconductoring (5/2012)Helm-McCall 230 kV Reconductoring (11/2012)Moraga Transformer Capacity Increase (12/2012)Tesla-Newark 230 kV Path Upgrade (5/2013)Rio Oso 230/115 kV Transformer Upgrades (5/2013)Panoche-McMullin 230 kV Reconductoring (11/2013)McMullin-Kearney 230 kV Reconductoring (1/2014)Contra Costa-Moraga 230 kV Line Reconductoring (3/2014)Henrietta-McCall 230 kV Reconductoring (5/2014)Pittsburg-Tesla 230 kV Reconductoring (5/2014)

Kang-Ling Ching415-973-7637

(PG&E)






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Pittsburg 230/115 kV Transformer Capacity Increase (5/2014)Embarcadero-Potrero 230 kV project (5/2015)Vaca Dixon-Lakeville 230 kV Reconductoring (5/2015)Ashlan-Gregg and Ashlan-Herndon 230 kV Reconductor (5/2019)

Central California Clean Energy Transmission Project (formerly Midway – Gregg 500 kV [formerly Greater Fresno Long Term Bulk Supply Plan ])

500 12/2017cancelled

1.5 1100 RPP PG&E is currently studying 15 different options to building a line between the Midway and Gregg Substations. This project (C3ET) would increase transmission import capacity north of Midway Substation to allow transmission of power from renewable resources from southern CA and provide a valuable option to facilitate PG&E to meet its renewable procurement targets in the event that not enough northern CA renewable projects materialize. It would relieve Path 15 congestion by increasing the Path 15 south-to-north transfer capability by about 1250 MW. It would also increase import capability to the Yosemite and Fresno area by about 500 MW. Finally, it would increase the Helms PSP pumping window and enhance support of three Helms units pumping operation.

″

Bay Area Bulk Transmission Project (formerly known as the Bay Area 500 kV Station)

230 12/2017 1 For serving local Bay area load. There are several project alternatives. 1. Build new 500/230 kV substation near Collinsville with two 500/230

kV transformers; loop the Vaca Dixon-Tesla (or Table Mtn-Tesla) 500 kV line to the new sub; build a new 230 DCTL between the new sub and Pittsburg sub, and add a new 500/230 kV transformer at Tesla/Tracy.

2. Build new 500/230 kV substation at Sunol (near Newark); loop the Tesla-Los Banos 500 kV line into the new sub; re-configure some 230 kV lines at Newark; reconductor some of the reconfigured 230 kV lines, and add a new 500/230 kV transformer at Tesla/Tracy.

3. Build new 500/230 kV substation at Sunol (near Newark); loop the Tesla-Los Banos 500 kV line into the new sub; re-configure some 230 kV lines at Newark;reconductor some of the reconfigured 230 kV lines; build a new 230 kV DCTL from Contra Costa-Pittsburg, and build a new 230 kV DCTL from Vaca-Dixon – Contra Costa.

4. Build new 230 kV DCTL from Costra Costa-Pittsburg; build a new 230 kV DCTL from Vaca-Dixon – Contra Costa; build a new 230 kV line from Tesla/Tracy-Livermore-Newark/Northern Receiving Station.

″

Canada/Pacific Northwest - Northern California Transmission Project

500 12/2018 3.5 3000 MW N-S

1 The Regional Planning Project Review for this project was begun on 8/16/06 and completed 11/1/07. The proposed project involves the construction of approximately 1000 miles of HVAC and HVDC transmission lines from British Columbia to Northern California and interconnects with five or six existing and proposed substations. It is targeted to have a north-to-south rating of 3000 MW. This project has three key objectives: 1) it would provide California with access to significant incremental renewable resources in British Columbia and the Pacific Northwest. 2) it would improve regional transmission reliability. 3) it could provide other market participants with beneficial opportunities to use the facilities.

“






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Colusa Generating Station 715 12/2010 .2 Combined cycle power plant using Dry Cooling technology. Transmission interconnection will require four double circuit 230 kV lines that will connect to PG&E’s existing 230 kV north-south transmission lines between Cottonwood and Vaca-Dixon Substations located approximately 1800 feet East of the project site. Information on this project can be accessed at the California Energy Commission (CEC) web site: http://www.energy.ca.gov/sitingcases/colusa/index.html.

“

Miguel Bank 230/138 kV Bank #2

230/138 12/2011 .1 A new 230/138 kV transformer is proposed at Miguel with an in-service date of December 2011.

David Wang858-654-8162

(SDGE)

Bay Blvd (formerly Bayfront) Substation Transmission Project

230/69 12/2012 .3 The Bay Blvd 230/69 kV Substation Transmission project is designed and constructed to better serve SDG&E local load and includes the following scope of work: 1) Construct a new 230/69 kV substation that will replace the existing South Bay 138/69 kV substation; 2) Install two 224 MVA 230/69 kV transformers; 3) Loop in the Miguel-Silvergate 230 kV transmission line into the new substation; 4) Transfer all 69 kV lines presently connected to the South Bay 138/69 kV substation to the new substation; and 5) Re-configure existing 138 kV lines to eliminate the need for the South Bay 138 kV bus.

“

Sunrise Powerlink Project 500 6/2012 118 3 1 32 4 2 1SDGE issued a Comprehensive Progress report on 01-13-06 regarding the Sunrise Powerlink Project. Further, SDG&E filed the Sunrise Powerlink CPCN with the CPUC on 8/4/06. The CPUC deemed SDG&E’s application complete on 9/9/06. SDG&E filed supplemental testimony with the CPUC on 1/26/07. The project is the construction of a 500 kV line from Imperial Valley to Suncrest San Diego scheduled for completion in June 2012; two 230 kV lines from Suncrest San Diego to Sycamore scheduled for completion in June 2012; and other miscellaneous projects under this plan of service that will be completed in June 2012.

“

2nd Encina – Penasquitos 230 kV Line

230 5/2010In-

Service & Complete

.1 The project is the conversion of existing 138 kV lines between Encina and Penasquitos to 230 kV operation (estimated in-service date: Dec 2009). Other supporting changes in the 69 kV system including loop-in, breaker and transformer banks to be completed in May 2010.

“

Upgrade Barre-Ellis 230 kV Transmission Line

230 5/2010In-

Service & Complete

.2 Upgrade Barre-Ellis 230 kV transmission line to relieve contingency overload. David Franklin626-302-0372

(SCE)

Buck Blvd-Julian Hinds 230 kV 66 Mile Transmission Line

230 6/2010In-

Service & Complete

.05 Project is to transmit Blythe I Generation (520 MW) to the CAISO controlled grid. “


http://www.energy.ca.gov/sitingcases/colusa/index.html





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Pastoria Expansion 157 220 11/2010Remove

.1 The project connects into the SCE Pastoria 220 kV Substation. No signed interconnection agreement.

″

Inland Empire Energy Center

810 500 7/2009In-

Service & Complete

.2 Interconnect an 810 MW Combined Cycle Generating Facility to SCE’s Valley 500 kV Substation. Construct a new 4000 amp 500 kV line position at Valley Substation consisting of one dead-end structure, two circuit breakers, and four disconnect switches; upgrade 500 kV GIS line drops at Serrano Substation to 4000 amps. Unit 1 (400 MW) in-service as of 1/28/09. Unit 2 (400 MW) TBD.

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Edison Mission-Walnut Energy 1

500 220 1/2012 .1 The project consists of five 100 MW natural gas-fired combustion turbine-generators that connects into the SCE Walnut 220 kV Substation.

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Pastoria Energy Facility – second line

230 1/1/2011Remove

.1 This project interconnects to Pastoria 230 kV Substation. It is currently in the Interconnection Agreement phase. No signed interconnection agreement.

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El Casco 560 MVA 230/66 kV Substation

230/69 4/2011In-

Service & Complete

.2 Two new 280 MVA 220/66 kV transformer banks will be installed at a new Oak Valley 230/66 kV Substation. This distribution project is needed to serve load growth in the eastern LA basin and provide transformer bank relief to Vista and Devers 230/115 kV substations. The new Oak Valley Substation will be served by looping the existing Devers – San Bernardino #2 230 kV line, forming Devers – Oak Valley and San Bernardino – Oak Valley 230 kV lines.

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Split Devers – Mirage 115kV System

6/2012 .05 The existing Devers – Mirage subtransmission system will be split into two separate subtransmission systems: the Devers 115 kV subtransmission system and the Mirage 115 kV subtransmission system. The project requires the addition of a 3rd “A” bank at Mirage, various 115 kV subtransmission line arrangements and 115 kV breaker replacements to support the subtransmission rearrangements.

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AES SeaWest Mountain View 4 Generation Project

115 10/2011Remove

.1 This Project connects into SCE Garnet 115 kV. It is currently in the Facility Study. No signed interconnection agreement.

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Edison Mission-Sun Valley 507 115 3/2012Remove

.1 The project connects into the SCE Valley 115 kV substation. No signed interconnection agreement.

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Manzana USA Wind Generation Project (formerly EnXco Cottonwood Creek)

230 5/2012Remove

.1 This Project connects into the SCE Big-Creek 230 kV corridor by looping the Antelope-Magunden 230 kV line #2 into a proposed Cottonwind 230 kV Substation. No signed interconnection agreement.

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NRG/El Segundo Generation Project

280 9/2012 14 6 4 2The project is a repower of the power plant. Units #1 and #2 will be replaced with combined cycle units and El Segundo will have a maximum output of 630 MW.

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Devers-Coachella Valley 230 kV Loop-In

230 12/2012 .2 The project consists of looping the existing Devers-Coachella 230 kV line into Mirage Substation by 2009 to mitigate N-2 voltage collapse for the post-split

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system. Two new transmission lines will be constructed or rerouted to form the following lines: Coachella – Mirage 230 kV Devers – Mirage #2 230 kV

PPM Dillion Wind 100 500 10/2012Remove

.1 The project connects into the SCE Devers 115 kV Substation. No signed interconnection agreement.

″

Vincent-Mira Loma 500 kV Transmission LIne

500 11/2012Remove

.2 Construct approximately 80 miles of new 500 kV line from Vincent to Mira Loma to mitigate South of Lugo path problems. This project has been combined with the Tehachapi Renewable Transmission Project.

“

CPV Sentinel 850 220 6/2013Remove

.2 Interconnect an 850 MW Simple Cycle Generating Facility to SCE’s Devers 220 kV Substation. Relocate existing line terminations within Devers Substation and install new 220 kV line position to accommodate termination of the new generation tie line; install power system controls and telecommunications; install special protection systems. No signed interconnection agreement.

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Intergen Ocotillo Generation Project

850 12/2013Remove

.05 5 2 26 10 2SCE previously provided an Initial Progress Report. This is an update. The Project consists of a new 850 MW power plant connected at SCE’s Devers 230 kV substation. No signed interconnection agreement.

″

Devers-Palo Verde 500 kV (DPV2 Project) – Arizona Portion

500 Delayed .3 +1200 32

Many tables 2 14 1 1The purpose of this transmission line is to increase the transfer capability from Arizona – Southern California by 1200 MW. The stand-alone DPV2 project has achieved Phase 3 status for the EOR (Path 49) rating increase of 1200 MW and Phase 3 status for the WOR (Path 46) rating increase of 1200 MW. The DPV2 Project and EOR 9300 Project have achieved Phase 2 status for a combined EOR (Path 49) rating increase of 2,445 MW.

″

LEAPS Pump Storage Generation Project

500 12/2012Remove

.1 1 This Project consists of a new Substation looping the Valley – Serrano 500 kV line. It is currently in the Facility Study stage. No signed interconnection agreement.

“

SES Solar One, LLC Generation Project

230 12/2012Remove

.1 This Project connects to SCE Pisgah 230 kV. It is currently in the Facility Study stage. No signed interconnection agreement.

“

Caithness Blythe II T/L Capacity increase

500 2013Remove

.1 This project connects to SCE Palo Verde – Devers #1. It is currently in the Facility Study Impact Study phase. No signed interconnection agreement.

“

City of Palmdale – Palmdale Power Generation Project

230 6/2013Remove

.1 This Project connects to SCE Vincent 230 kV Substation. It is currently in the Facility Study stage. No signed interconnection agreement.

“

Red Bluff Substation 500/220 kV

500/220 4/2013 .2 Construct a new 500/230 kV collector substation (Red Bluff) to interconnect new renewable generation projects in the Desert Center Area. Two parallel

“






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transmission line segments to connect the substation to the existing Devers-Palo Verde 500 kV transmission line. Will consist of two 1120 MVA transformers and a 150 MVAR shunt cap. The project will interconnect 1750 MW to SCE’s Red Bluff 220 kV Substation.

Eldorado – Ivanpah Transmission Project (EITP)

220/115 7/2013 .3 Construct a new 220/115 kV Ivanpah Substation near Primm, Nevada and an upgrade of a 35 miles double circuit 220 kV transmission line, connecting the new Ivanpah Substation to SCE’s Eldorado Substation, near Boulder City, Nevada. Upgrades at Eldorado Substation to support the connection of new transmission lines.

“

Devers – Palo Verde 500 kV (DPV2 Project) – California Portion

500 9/2013 .3 Construct the California portion of DCR (Devers – Colorado River), a new 113 mile 500 kV line from the new Colorado River Switchyard to SCE’s existing Devers Substation. Looping Devers-Palo Verde #1 500 kV into Colorado River. Construct the Devers-Valley #2 line, a new 42 mile 500 kV transmission line paralleling an existing line connecting SCE’s Devers Substation to SCE’s existing Valley Substation in Romoland, California. Also, construct other reactive support equipment.

“

Colorado River 230 kV Expansion

230 9/2013 .2 Expand the existing station, presently configured as a 500 kV Switchyard, to a 1120 MVA 500/220 kV Substation by installing two 1120 MVA 500/220 kV Transformer Banks with corresponding 500 kV and 220 kV Bank Positions and installing a new 220 kV Switchyard. Also included is a 150 MVAR shunt cap. The project will interconnect 1985 MW to SCE’s Colorado River 230 kV Substation.

“

San Joaquin Cross Valley Loop Project

230 4/2014 .3 Construction of a new 18.5 mile double-circuit 230 kV transmission line that would connect Rector Substation to an existing 230 kV line from SCE’s Big Creek hydroelectric facilities in the Siera Nevada Mountains. Loop Big Creek 3-Springville 230 kV line into Rector.

″

Tehachapi Renewable Transmission Project

500/230 10/09-2/15

.3 Construct the following 500 kV – 230 kV transmission facilities needed to connect 4500 MW renewable generation in the Tehachapi area: Antelope-Pardee 230 kV WindHub 230 kV Substation Antelope-Vincent 230 kV Antelope – WindHub 230 kV Antelope – Vincent 230 kV #2 LowWind 500/230 kV sub with loop-in of Midway – Vincent #3 500 kV Antelope – LowWind 500 kV WindHub 500 kV, Antelope 500 kV and Vincent 500/230 kV upgrades LowWind – WindHub 500 kV Vincent – Rio Hondo 500 kV Vincent – Mira Loma 500 kV Vincent – Mesa 500 kV

“

Alberhill 500/115 kV 500/115 6/2014 .1 Develop a new 1120 MVA Alberhill 500/115 kV Substation and associated “






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Substation transmission lines. Construct a new 500/115 kV transmission substation (Alberhill Substation), connecting SCE’s existing Serrano-Valley 500 kV transmission line into the new Alberhill Substation with two new 500 kV line segments. Construct a new 115 kV subtransmission line and modifications to existing 115 kV subtransmission lines.

Wildlife (formerly Jurupa) 230 kV Substation

230 4/2015 .2 Develop a 2x 560 MVA Wilderness 230 kV Substation for Riverside. Loop the existing Mira Loma-Vista #1 line and construct about 8 miles of double circuit to Wilderness 230 kV to provide a method of service to a new substation serving City of Riverside.

“

Riverside 220 kV Interconnection

220 4/2015 .1 The project will be constructed at the same time as and adjacent to Wildlife 230 kV Substation project and will be tied to Wildlife 230 kV.

“

Magunden-Rector 230 kV Transmission Lines

230 6/2015Remove

.2 Construct 68 miles of double circuit 230 kV transmission lines from Magunden to Rector to mitigate reliability problems (transient and post transient) in the San Joaquin Valley area under contingency conditions. This project has been combined with the North of Magunden Long Term Plan.

“

West of Devers 230 kV Rebuild

230 6/2015 .1 Relocate and rebuild about 8 miles of four 230 kV transmission lines West of Devers to a new location, to mitigate criteria violations.

“

Pisgah 500/230 kV Substation

500/230 12/2017 .4 Construction of a new 500/220 kV substation near SCE’s existing Pisgah Substation near Newberry Springs. Construction of approximately 67 miles of new 500 kV transmission line between the new Pisgah vicinity substation and SCE’s existing Lugo Substation. Approximately 51 miles of the new 500 kV line would replace the existing Lugo-Pisgah #2 220 kV line and would use the existing transmission corridor. Between the Lucerne Valley area and the Lugo Substation (approximately 16 miles), the existing corridor is not wide enough to accommodate the new 500 kV line. In this area, SCE is exploring the need for new transmission corridor to construct the remainder of the line. The project will interconnect 850 MW to Pisgah 230 kV Substation.

“

Valley-Serrano 500 kV #2 Transmission Line

500 6/2019 .2 Construct a second Valley-Serrano 500 kV transmission line to provide load service capacity.

“

North of Magunden Long Term Plan

6/2019 .2 Master Plan to build transmission lines and substations to serve load in San Joaquin Valley area.

“

Devers – Mirage #3 230 kV Line

230 6/2019Cancelle

d

.1 Construct a new Devers – Mirage 230 kV Transmission line. “

Upgrade Barre-Lewis 230 kV Transmission Line

230 6/2019 .2 Upgrade Barre-Lewis 230 kV transmission line to relieve contingency overload. “

New Auld 500/115 kV 500/115 6/2019 .1 Develop a new 1120 MVA Auld 500/115 kV Substation, construct a 500 kV “






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Substation transmission line to Valley for the purpose of relieving overloading on SCE’s Valley 115 kV system due to load growth in the region.

Cassini (formerly Antelope Valley-Valyermo) New 230/66 kV Substation and related Transmission Lines

230/66 6/2019 .2 Develop 560 MVA 230/66 kV Substation and related transmission (construct 230 kV lines to new sub) and subtransmission facilities (5 new 66 kV lines about 15 miles each) in east of Antelope 230/66 kV Sub to provide needed transformer bank capacity to serve load growth in Palmdale/Lancaster area.

“

Mesa 500/230 kV Substation

500/230 6/2019 .2 Develop a new 500/230 kV Substation equipped with 2 x 1120 MVA transformers.

“

Lighthipe 500/230 kV Substation

500/230 6/2019 .2 Develop a new 500/230 kV Substation equipped with 2 x 1120 MVA transformers.

“

Nuevo 500/115 kV Substation

500/115 6/2025Remove

.2 Develop a new 1120 MVA Nuevo 500/115 kV Substation with new Auld – Nuevo 500 kV transmission line.

“

Allessandro 230/115 kV Substation

230/115 6/2035Remove

.2 Develop a new 230/115 kV Substation with new Vista – Allessandro 230 kV transmission line.

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East Altamont Energy Center

1170 230 Project on hold

.5 1170 MW power plant to be located across the road from WAPA’s Tracy 230 kV substation. System impact study and detailed facility study complete. Loop Tracy-Westley into new substation and modify Tracy bus arrangement to double breaker double bus.

Kirk Sornborger (916) 353-4063 (WAPA-SNR)

O’Banion-Elverta 230-kV Double Circuit Transmission Line

230 Q1/2012 .3 Build the 37 miles of O’Banion-Elverta and the 33 miles of O’Banion-Natomas 230 kV double circuit transmission lines on a steel single pole with vertical double bundled 954 ACSR conductor and OPGW. Each circuit will be energized at 230 kV.

″

Tracy-Delta Mendota Canal-California Aqueduct Intertie Project

69 10/2006Project on hold

.7 This project is the construction of a new DCI pumping plant and switchyard by tapping the existing 69 kV Tracy-Contra Costa circuit near Western’s Tracy Substation. The construction contract for the pumping plant and substation was awarded December 2005. Reclamation has canceled all construction and is now expecting to publish a draft EIS in March 2007.

“


Attachment I

Member Systems reporting significant facilities* in the 2010 Annual Progress reports to WECC from which, as of May 18, 2011, no report has been received:

1. Sea Breeze2. AESO

* Projects listed as “In service” will be removed from the next issue of this log.

Attachment II

Member Systems previously reporting significant facilities* in the WECC Transmission Database from which, as of May 18, 2011, no report has been received:

1. Sea Breeze Pacific RTS Sea Breeze Pacific2. Sea Breeze Pacific West Coast Cable Sea Breeze Pacific


Significant facilities* reported in the WECC Transmission Database as of October 20, 2010 which were not included in Annual Progress Reports submitted:

This will be updated on release of the 2010 Sig Add report.


Documents

Alberta 2011 Annual Progress Report · Web viewEach circuit will be energized at 230 kV. ″ Tracy-Delta Mendota Canal-California Aqueduct Intertie Project 69 10/2006 Project on hold