Cheyenne Light, Fuel and Power Transmission Feasibility Study · Cheyenne Light, Fuel and Power Transmission Feasibility Study CLPT-G7 102 MW Wind Plant near the Corlett 115 kV Substation

Cheyenne Light, Fuel and Power Transmission Feasibility Study CLPT-G7 102 MW Wind Plant near the Corlett 115 kV Substation

Agreement No. 35149

Laramie County, Wyoming May 2, 2016


May 2, 2016 | i

Contents

1 Executive Summary ............................................................................................................................ 1

2 Background ......................................................................................................................................... 2

3 Study Inputs and Assumptions ............................................................................................................ 2 3.1 Facility Ratings .......................................................................................................................... 2 3.2 Facility Status or Changes ........................................................................................................ 2

4 Project Approach ................................................................................................................................. 3 4.1 Studies to be Performed............................................................................................................ 3 4.2 Assumptions and Modeling ....................................................................................................... 3 4.3 Requested Project Assumptions ............................................................................................... 4 4.4 Load Assumptions ..................................................................................................................... 4 4.5 Generation and Intertie Flow Assumptions ............................................................................... 4

4.5.1 2018HS Scenario ......................................................................................................... 4 4.5.2 2023HS Scenario ......................................................................................................... 5

4.6 Facility Ratings .......................................................................................................................... 6 4.7 Shunt Elements ......................................................................................................................... 7 4.8 Facility Assumptions .................................................................................................................. 7 4.9 Monitored Study Area ................................................................................................................ 7 4.10 Power Flow Contingencies ........................................................................................................ 7 4.11 Short Circuit Analysis ................................................................................................................ 8

5 Criteria ................................................................................................................................................. 8

6 Methodology ........................................................................................................................................ 8 6.1 Power Flow Analysis ................................................................................................................. 8 6.2 Short Circuit Analysis ................................................................................................................ 9

7 Examination of Results ........................................................................................................................ 9 7.1 Voltage Issues ........................................................................................................................... 9 7.2 Power Flow Performance with CLPT-G7 In Service ................................................................. 9 7.3 Power Flow Performance of Sensitivity Cases ....................................................................... 10 7.4 Unsolved Contingencies in Steady State Analysis ................................................................. 11 7.5 Short Circuit Analysis Results ................................................................................................. 11

8 Conclusions ....................................................................................................................................... 12 8.1 Interconnection Customer Generation Facilities ..................................................................... 12 8.2 Network Upgrades ................................................................................................................... 12

Appendix A: Thermal Results...................................................................................................................... 14

Appendix B: Simulated Contingencies ........................................................................................................ 16

Appendix C: Short Circuit Analysis Data ..................................................................................................... 24

Appendix D: Cheyenne West Substation Layout ........................................................................................ 26


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Tables

Table 1: TOT3 MW Flow (North-to-South Flow) ........................................................................................... 3 Table 2: Generation for Modeled Cases (MW) ............................................................................................. 5 Table 3: Archer - Ault - Terry Ranch 230 kV Outage .................................................................................... 9 Table 4: Overloads in Sensitivity Cases ..................................................................................................... 10 Table 5: Fault Current Prior to CLPT-G7 Addition ...................................................................................... 11 Table 6: Fault Current after CLPT-G7 Addition........................................................................................... 11 Table 7: Sensitivity – Fault Current after G7 and G6 Addition .................................................................... 11 Table 8: Network Upgrades ........................................................................................................................ 13


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1 Executive Summary Black Hills Corporation tasked HDR with analyzing the system impact on the Cheyenne Light, Fuel and Power (CLFP) electric transmission system from the interconnection of a wind powered generation facility with a maximum output of 102 MW, at a requested Point of Interconnection (POI) bisecting the Swan Ranch-King Ranch 115 kV line near the CLFP Corlett 115 kV substation. This analysis evaluates the new wind generation as both a network resource and an energy only resource.

This study evaluated a valid request from an Interconnection Customer (IC) to provide interconnection service for a proposed generation facility under the guidance of the Cheyenne Light Power Transmission (CLPT) OATT Large Generator Interconnection Procedures (LGIP). This interconnection, CLPT-G7, is located in the CLFP service territory near Cheyenne, WY. The requested commercial operation date is December 31, 2017. A 2020 high-summer load Colorado Coordinated Planning Group (CCPG) case, which originated from the WECC 2020HS2 series model, was modified to create the 2018 case for the summer peak evaluation. Figure 1 below shows the CLPT-G7 plant and interconnection details superimposed upon maps of the area.

ARCHER

WARREN AFB

CHEYENNECROW CREEK

HILLTOP

SKYLINE

HAPPY JACK

CORLETT

TO SNOWY RANGE

TO PONNEQUINN

TO GEM CITY

TO MYERS

TAP

TO PINE BLUFFS

TO STEGALL

TO AULT

NORTH RANGE

SWAN RANCH

EAST BUSINESS

PARK SUB

TO NORTHPARK

SOUTH CHEYENNE

CHEYENNE PRAIRIE

GENERATION

MICROSOFT

TERRY RANCH

KING RANCH

OWNERSHIP LEGEND

CLF&P 115 kVWAPA 230 kVWAPA 115 kVPLANNED, IN BASE CASEPLANNED, NOT IN BASE CASE

CLPT-G7 FACILITIES

CLPT-G7

Figure 1: CLPT G-7 Project Layout Relative to the POI


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A sensitivity case, using the 2023 heavy summer peak model was run to evaluate the impact of a prior queued generation interconnection. That interconnection is the CLPT-G6, located at the Cheyenne Prairie Generation bus.

System intact loading, with the new generation at 102 MW, produced no branch overloads in the power flow models examined. The sensitivity case, which includes the CLPT-G6 generation, as well as the CLPT-G7 generation, also produced no branch overloads.

Appendix C lists the contingencies performed on all the cases. Post contingent overloads with > 2% distribution factor were encountered and are included as Appendix A. Changes in voltage drops of more than 1% were not encountered in the post contingent base case voltages verses the post contingent change cases.

The CLPT-G7 generation project can be interconnected following network upgrades at an estimated cost of $5,265,000. The lead time for implementing the required upgrades is 18 to 24 months.

2 Background The CLPT-G7 interconnection represents a moderate increase in the generation capacity in the area. The proposed project consists of a wind turbine facility with a maximum output of 102 MW at a POI bisecting the Swan Ranch-King Ranch 115 kV line near the Corlett 115 kV substation. To better coincide with the TP’s future transmission expansion plans, the POI was changed to be a new 115 kV substation between the generation facility location and the existing 115 kV line corridor between Swan Ranch and King Ranch. The Point of Change of Ownership was changed to be at the dead end structure in the proposed project’s collector substation.

3 Study Inputs and Assumptions 3.1 Facility Ratings

For new transmission facilities needed, the assumed design parameters are:

• 115 kV lines are constructed using conductor type 795 45/7 ACSR (Tern) with a summer rating of 213 MVA at 100° C and 267 MVA winter rating, and

• 230 kV lines are constructed using conductor type 1272 45/7 ACSR (Bittern) with a summer rating of 573 MVA at 100° C and 637 MVA winter rating.

Note: the CLPT-G7 115 kV generator tie line to the POI was assumed to be 1272 ACSR conductor.

3.2 Facility Status or Changes • Power-flow simulations were performed with a base case that had CLPT-G7 in the

model, but not in service. Comparisons were made by turning CLPT-G7 on, and dispatching the 102 MW as a Network Resource (NR) against the Wygen units.


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• A case was created to dispatch CLPT-G7 as an Energy Resource (ER). For this case, off-system resources at Dave Johnston #4, in central Wyoming, were used to offset the new CLPT-G7 102 MW generation.

• An additional set of cases were created to test sensitivity to other proposed projects in the area, such as the prior queued project CLPT-G6, located at the Cheyenne Prairie Generating Station. These cases were modeled with projects at full output, creating a new base case, and then testing that against the change case with the proposed CLPT-G7 in service as both a NR and ER.

4 Project Approach 4.1 Studies to be Performed

The analysis performed to evaluate the proposed project is:

• Power Flow Analysis (Category P0, P1, P2, P4, P6, and P7), and • Short Circuit.

4.2 Assumptions and Modeling The study timeframe for the CLPT-G7 interconnection is the summer of 2018. The 2020 CCPG high-summer-load case, was used for the summer peak evaluation, and was modified as listed in Section 4.3 to reflect the appropriate scenarios.

The WECC TOT3 (Path 36) was considered relevant to this study. Table 1 below, shows the flow of the TOT3 facilities for the cases studied.

Table 1: TOT3 MW Flow (North-to-South Flow)

2018HS

(Without C

LPT-G7)

2018HS

(With C

LPT-G7 as N

R)

2018HS

(With C

LPT-G7 as ER

)

2023HS

(Without C

LPT-G7)

2023HS

(With C

LPT-G7 as N

R)

2023HS

(With C

LPT-G7 as ER

)

Archer - Ault 230kV 101.8 113.9 114 187 192.9 192.8

LRS - Ault 345kV 655.8 637.6 635.5 625.2 614.4 612.7

LRS - ArcherTS 345kV 462.1 455.8 454.6 400.7 405.3 404.6

Terry Ranch - Ault 230kV 121.1 147.1 147.2 228.6 246.8 246.6

Cheyenne - Ponnequin 115kV 48.3 55.1 55.1 67.2 72.8 72.7

Sidney - Peetz 115kV 66.7 66.4 66.5 76.2 75.5 75.5

Sidney - Spring Canyon 230kV 145.7 143.9 144.1 169.3 166.6 166.8

TOT3 Flow (N-S) 1602 1620 1617 1754 1774 1772

Power flow simulations were solved without area interchange.


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4.3 Requested Project Assumptions The scope of work prepared by Black Hills Corporation provided the following project assumptions:

• The project consists of GE 2.0 MW Wind Turbine Generators (WTGs) including WindFREE Reactive Power technology.

• The station transformer high side tap is set to 117.875 kV.

• The facility is set to regulate the 115 kV system voltage at the collector substation to 1.01 per unit.

• The generator tie line is assumed to be 1272 ACSR, 115 kV double circuit conductor from the point of interconnection back to the collector substation.

4.4 Load Assumptions The CLFP system load for the 2018 study scenario was scaled to 2018 peak summer levels (265 MW per 2015 Load Forecast).

The CLFP system load for the 2023 study scenario was scaled to 2023 peak summer levels (356 MW per 2015 Load Forecast).

4.5 Generation and Intertie Flow Assumptions Generation in the base cases was dispatched using a typical value for the area generators. The following assumptions were used in modeling the CLFP generation dispatch for each scenario:

4.5.1 2018HS Scenario The Cheyenne Prairie Generating Station (CPGS) is represented as a 40 MW simple cycle CT and a 100 MW combined cycle plant consisting of 2-40 MW CTs and 1-24.8 MW steam unit (gross). Net output is 140 MW. 81 MW of which is owned by CLFP. Other CLFP resources include 60 MW at Wygen1, 95 MW at Wygen2, and wind resources which include 10 MW at Silver Sage and 15 MW at Happy Jack.

The wind output at Happy Jack and Silver Sage was assumed to be 100%. The total CLFP resource mix for the 2018HS scenario is 261 MW.

• For the project as an NR: Assuming the 265 MW CLFP system load and the proposed project at 102 MW output, CLFP’s portion of the Wygen1 and Wygen2 will be reduced to offset the proposed generation.

• For the project as an ER: Off-system resources at the Dave Johnston #4 plant (65445) in central WY will be used to offset the new capacity.

TOT3 should be modeled at 1600 MW for the 2018 scenarios, prior to the addition of the CLPT-G7 project. Generation should not be re-dispatched to maintain TOT3 at 1600 MW following the addition of CLPT-G7.


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4.5.2 2023HS Scenario Cheyenne Prairie Generating Station is represented as a 40 MW simple cycle CT and a 100 MW combined cycle plant consisting of 2-40 MW CTs and 1-24.8 MW steam unit (gross). Net output is 140 MW, 81 MW of which is owned by CLFP. Also included at CPGS is the CLPT-G6 interconnection project consisting of a 125 MW combined cycle plant consisting of 2-50 MW CTs and 1-24.8 MW steam unit (gross). Other CLFP resources include 60 MW at Wygen1, 95 MW at Wygen2, and wind resources which includes 10 MW at Silver Sage and 15 MW at Happy Jack.

The wind output at Happy Jack and Silver Sage was assumed to be 100%. The total CLFP resource mix for the 2018HS scenario is 386 MW.

• For the project as an NR: Assuming the 356 MW CLFP system load and the proposed project at 102 MW output, CLFP’s portion of the Wygen1 and Wygen2 output will be reduced to offset the proposed generation.

• For the project as an ER: Off-system resources at the Dave Johnston #4 plant (65445) in central WY will be used to offset the new capacity.

TOT3 should be modeled at 1750 MW for the 2023 scenarios, prior to the addition of the CLPT-G7 project. Generation should not be re-dispatched to maintain TOT3 at 1750 MW following the addition of CLPT-G7.

The Sidney and Stegall DC Ties can influence the results of the analysis, as can other regional generation dispatch conditions by way of TOT3 flow levels. Refer to Table 2 below for specific generation dispatch levels for each study scenario.

Table 2: Generation for Modeled Cases (MW)

2018HS

(Without C

LPT-G7)

2018HS

(With C

LPT-G7 as N

R)

2018HS

(With C

LPT-G7 as ER

)

2023HS

(Without C

LPT-G7)

2023HS

(With C

LPT-G7 as N

R)

2023HS

(With C

LPT-G7 as ER

)

CPGS Block 1 104.8 104.8 104.8 104.8 104.8 104.8

CPGS Block 2 40 40 40 40 40 40

CLPT-G6 0 0 0 124.8 124.8 124.8

CLPT-G7 0 102 102 0 102 102

Happy Jack Wind 28 28 28 28 28 28

Silver Sage Wind 40 40 40 40 40 40

LRS Unit #1 605 605 605 605 605 605

LRS Unit #2 605 605 605 605 605 605

Dave Johnston Unit #1 104 104 104 104 104 104



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2018HS

(Without C

LPT-G7)

2018HS

(With C

LPT-G7 as N

R)

2018HS

(With C

LPT-G7 as ER

)

2023HS

(Without C

LPT-G7)

2023HS

(With C

LPT-G7 as N

R)

2023HS

(With C

LPT-G7 as ER

)



CPP (Brush) 69 69 69 69 69 69

Rawhide 478 478 478 438 438 438

Ponnequin Wind 6.3 6.3 6.3 6.3 6.3 6.3

Pawnee (net) 530 530 530 530 530 530

Manchief 200 200 200 140 140 140

RMEC 400 400 400 300 300 300

Craig 1366 1366 1366 1366 1366 1366

Hayden 463.5 463.5 463.5 463.5 463.5 463.5

Spring Canyon Wind 12.6 12.6 12.6 12.6 12.6 12.6

Ridgecrest Wind 6.3 6.3 6.3 6.3 6.3 6.3

Peetz-Logan Wind 120.9 120.9 120.9 120.9 120.9 120.9

St. Vrain Unit #1 208 208 208 182 182 182

St. Vrain Unit #2 108 108 108 82 82 82

St. Vrain Unit #3 108 108 108 82 82 82

St. Vrain Unit #4 108 108 108 82 82 82

St. Vrain Unit #5 108 108 108 83 83 83

St. Vrain Unit #6 108 108 108 83 83 83

Wygen1 93 91 93 93 91 93

Wygen2 100 0 100 100 0 100

Rapid City DC Tie -130 -130 -130 -130 -130 -130

Stegall DC Tie 100 100 100 100 100 100

Sidney DC Tie 200 200 200 200 200 200

4.6 Facility Ratings Continuous and short-term facility ratings were observed as requested by the affected transmission owners throughout the analysis. CLFP observes Rate A for all events, with the exception of transformers, which have a 30-min rating of 125% of the continuous rating following contingencies. Delta-V changes of less than 1% from base-model to CLPT-G7 model were neglected. Distribution factors (DF) of less than 2% of CLPT-G7 output on any given branch were also neglected.


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4.7 Shunt Elements All in-service and planned switched shunt elements were modeled in the case. Shunt devices that are automatically switched were be modeled as such and allowed to operate following contingencies. All manually switched shunt devices were allowed to switch prior to a disturbance and fixed at that pre-disturbance level following contingencies.

4.8 Facility Assumptions The following project assumptions in CLFP’s 10-Year Transmission Plan were applied to the 2018 scenario assessment:

• Archer-Cheyenne Prairie-East Business Park reconductor project is not complete,

• Cheyenne Prairie-South Cheyenne double circuit 115 kV line is not complete,

• King Ranch 115 kV substation is in-service,

• Swan Ranch 115 kV substation is in-service,

• Happy Jack-North Range 115 kV rating upgrade is not complete, and

• 636 ACSR conductor on South Cheyenne-King Ranch line replaced with 795 ACSR.

The following project assumptions in CLFP’s 10-Year Transmission Plan were applied to the 2023 scenario assessment:

• Archer-Cheyenne Prairie-East Business Park reconductor project is complete,

• Cheyenne Prairie-South Cheyenne double circuit 115 kV line is complete,

• King Ranch 115 kV substation is in-service,

• Swan Ranch 115 kV substation is in-service, and

• Happy Jack-North Range 115 kV rating upgrade is complete.

The Tri-State Wayne Child Phase II project was not modeled in the 2018 base case but was modeled online in the 2023 sensitivity cases to review the impacts of that system change planned for 2019.

4.9 Monitored Study Area The subsystem of interest for the analyses consists of all 115 kV and above buses in an area bound by Miracle Mile to the west, Dave Johnston to the north, Sidney to the east, and Ault to the south. All TOT3 elements will also be monitored.

4.10 Power Flow Contingencies The NERC Category P0, P1, P2, P4, P6, and P7 events to be simulated, as part of the power flow analysis, were provided in the following files:

• Category P0 is system intact, so there are no required files, and

• Category P1, P2, P4, P6, and P7 events were defined and provided.


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The contingencies are listed in Appendix B: Simulated Contingencies.

4.11 Short Circuit Analysis Short circuit analysis was conducted using an updated Aspen OneLinerTM model of the system near the proposed CLPT-G7 wind plant. The wind plant and 115kV transmission line were added using data provided by the customer.

5 Criteria The "NERC TPL" Standards criteria regarding loss of load and system instability were observed in all cases. Additionally, the criteria specified in the “System Performance TPL-001- WECC-CRT-2.1 Regional Criterion” were observed. The minimum first-swing voltage for transient stability simulations in the study area is 0.70 per unit.

Relative steady state voltage change is limited to 3 percent, of the nominal voltage, for intact system condition simulations and 5 percent under outage conditions. The relative steady state voltage change is the difference in voltage before and after an event, such as capacitor switching, load switching, transmission line tripping or large motor starting.

For determination of the effect CLPT-G7 will have on voltage change (delta V), only degradation of the delta V was listed as a violation. For example, the delta V in some base case simulations was greater than 5%; so no remedy would be called out in the case of delta V being less than 7% in the base case and less than 6% in the change case. In this analysis, only a delta V greater than 7% with CLPT-G7 would be considered a violation.

The proposed generation project was modeled such that:

• Composite power delivery at continuous rated power output at the POI was maintained,

• The power factor stayed within the range of 0.9 leading to 0.9 lagging, across the range of near 0% to 100% of facility MW rating, and

• The magnitude of reactive power will be calculated on the basis of nominal POI voltage (1.0 pu V).

The model considered the effects of step-up transformer reactance and voltage taps/turns ratios, and bus-fed auxiliary load.

6 Methodology 6.1 Power Flow Analysis

Examination of Table 2 above details how the area generation was dispatched for each case. The base case was built with the proposed CLPT-G7 project modeled, but off-line. Two additional cases were created with CLPT-G7 on line at 102 MW and dispatched against both Wygen units when modeled as an NR, and Dave Johnson #4, when modeled as an ER. All the cases were subjected to outages as defined in the contingency file. The results were compared between the base case and the cases


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where CLPT-G7 is in service for analysis. The results of the steady state analysis for this scenario are described in Section 7.

A set of sensitivity cases were created to test the system with the prior queued project CLPT-G6, located at the Cheyenne Prairie Generating Station on line, with 2023 load levels. These sensitivity cases were created in the same manner as described above, and the results of the steady state analysis for this scenario are described in Section 7.

6.2 Short Circuit Analysis ASPEN OneLinerTM software was used to model the fault currents for a 3-phase fault, 2-phase line-to-ground faults, single line-to-ground faults, and line-to-line faults, extending 2 buses out from the POI to determine if any facility upgrades will be necessary. These include existing 115 kV buses at North Range, South Cheyenne, Swan Ranch, and Corlett, and the future Kings Ranch 115 kV bus which was included in the models. The results are tabulated in Section 7.5.

7 Examination of Results 7.1 Voltage Issues

There were no voltage impacts, where the change in voltage between the base case and change case was greater than 1%, were discovered in this analysis.

7.2 Power Flow Performance with CLPT-G7 In Service There were no thermal loading issues identified for system intact conditions in either of the evaluated scenarios.

The CLPT-G7 project, modeled as either a NR or an ER resulted in an overload on the CLFP Owl Creek – Rockport Tap 115 kV line. This overload occurred with the loss of the Archer – Ault 230 kV line and the Ault - Terry Ranch 230 kV line. Although the flow on the line exceeds RATEA in the model, the limiting facility is at the Tri-State Generation & Transmission Cooperative (TSG&T) Rockport Substation and has a 30 minute continuous overload rating of 121 MVA. Therefore, no mitigation is required.

The following table shows thermal overloads associated with the addition of 102 MW of new generation, and grouped by the contingency listed. More complete tables are in the Appendix A for each case comparison.

Table 3: Archer - Ault - Terry Ranch 230 kV Outage OPEN BRANCH FROM BUS 73009 [ARCHER 230.00] TO BUS 73011 [AULT 230.00] CKT 1 OPEN BRANCH FROM BUS 73011 [AULT 230.00] TO BUS 73488 [TERRY_RANCH 230.00] CKT 1

TRR-AULT+ARH-AULT DBLCKT Case Rating Post Contingent Loading

Base Load Pre CLPT-G7

Change Load Post CLPT-G7

73172 ROCKPRTP 115.00 73597*OWL_CRK 115.00 1 2018HS NR 99 84.9 100.0

2018HS ER 99 84.9 100.1


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7.3 Power Flow Performance of Sensitivity Cases For the sensitivity cases, where CLPT-G6 is also in service, and with CLPT-G7 project modeled as a NR or an ER, the results are similar with an overload on the Owl Creek – Rockport Tap 115 kV line. This overload occurred with the loss of both the Archer – Ault 230 kV line and the Ault - Terry Ranch 230 kV line. The limiting facility is at the TSG&T Rockport Substation and has a 30 minute continuous overload rating of 121 MVA. Therefore, no mitigation is required. Additional overloads are seen on the Rockport to Nunn 115 V line for the same outages of the Archer – Ault 230 kV line and the Ault - Terry Ranch 230 kV line, and overloads on the Ault – Weld LM 230 kV line when the second circuit is lost. For this outage, loading on the line is within the 30 minute emergency rating of 621 MVA, therefore no mitigation is required.

The following table shows thermal overloads associated with the sensitivity cases, with the addition of 102 MW of at CLPT-G7 and 125 MW from CLPT-G6, and grouped by the contingency listed. More complete tables are in Appendix A for each case comparison.

Table 4: Overloads in Sensitivity Cases OPEN BRANCH FROM BUS 73009 [ARCHER 230.00] TO BUS 73011 [AULT 230.00] CKT 1 OPEN BRANCH FROM BUS 73011 [AULT 230.00] TO BUS 73488 [TERRY_RANCH 230.00] CKT 1




73172 ROCKPRTP 115.00 73597*OWL_CRK 115.00 1 2023HS NR 99 107.8 116.4

2023HS ER 99 107.8 116.3

OPEN BRANCH FROM BUS 73009 [ARCHER 230.00] TO BUS 73011 [AULT 230.00] CKT 1 OPEN BRANCH FROM BUS 73011 [AULT 230.00] TO BUS 73488 [TERRY_RANCH 230.00] CKT 1




73145 NUNN 115.00 73172*ROCKPRTP 115.00 2023HS NR 99 106.3 114.9

2023HS ER 99 106.3 114.8

OPEN BRANCH FROM BUS 73011 [AULT 230.00] TO BUS 73212 [WELD LM 230.00] CKT 1

1_AULT 230.00-WELD LM 230.00 Case Rating Post Contingent Loading



73011*AULT 230.00 73212 WELD LM 230.00 CKT 2 2023HS NR 512.7 516.3 520.0

2023HS ER 512.7 516.3 520.0

OPEN BRANCH FROM BUS 73011 [AULT 230.00] TO BUS 73212 [WELD LM 230.00] CKT 2

2_AULT 230.00-WELD LM 230.00 Case Rating Post Contingent Loading



73011*AULT 230.00 73212 WELD LM 230.00 CKT 1 2023HS NR 512.7 516.3 519.6

2023HS ER 512.7 516.3 519.6


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7.4 Unsolved Contingencies in Steady State Analysis There were no unsolved valid contingencies.

7.5 Short Circuit Analysis Results The ASPEN OneLinerTM model was updated to include the CLPT-G7 plant. The results are shown in Table 5 and Table 6 below, and show increases in fault current ranging from of 500 to 1,100 Amps as a result of the CLPT-G7 generator. The largest increases occur for 3-phase faults. These increases in the fault current do not exceed the maximum interrupting capability of the existing equipment at these substations.

Table 5: Fault Current Prior to CLPT-G7 Addition

Bus Voltage

(kV) 3LG

(Amps) 2LG

(Amps) 1LG

(Amps) LL

(Amps)

Swan Ranch 115 9,668 5,723 7,168 8,346

South Cheyenne 115 17,833 21,166 19,242 15,352

King Ranch 115 13,598 8,699 10,567 11,727

North Range 115 14,299 9,810 11,588 12,329 Corlett 115 12,257 7,694 9,420 10,574

Table 6: Fault Current after CLPT-G7 Addition

Bus Voltage

(kV) 3LG

(Amps) 2LG

(Amps) 1LG

(Amps) LL

(Amps)

Swan Ranch 115 10,244 5,779 7,370 8,847 South Cheyenne 115 18,543 21,485 19,794 15,968 King Ranch 115 14,651 8,818 10,969 12,640 North Range 115 15,336 9,949 12,022 13,228 Corlett 115 12,902 7,766 9,664 11,134

A sensitivity study was also done, looking at the impact of both CLPT-G7 and CLPT-G6 in service. The increases in fault currents are less than the maximum interrupting capability of the existing equipment at these substations. The results are shown in Table 7 below.

Table 7: Sensitivity – Fault Current after G7 and G6 Addition

Bus Voltage

(kV) 3LG

(Amps) 2LG

(Amps) 1LG

(Amps) LL

(Amps)

Swan Ranch 115 10,471 5,821 7,466 9,048

South Cheyenne 115 19,425 22,484 20,748 16,746

King Ranch 115 15,085 8,896 11,159 13,024

North Range 115 15,814 10,048 12,250 13,651

Corlett 115 13,256 7,835 9,823 11,447


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8 Conclusions The CLPT-G7 wind project can be operated at the requested capacity of 102 MW as a Network Resource or Energy Resource. Any overloaded facilities that were present as a result of adding the new wind project can be mitigated by utilizing the emergency ratings determined by the transmission owner.

If the IC elects to proceed with the System Impact Study, the CLPT-G7 project as an ER should be dispatched against resources to the south of the TOT3 boundary to capture the impacts of incremental flow across that transfer path.

To better coincide with the TP’s future transmission expansion plans, the POI was changed to be a new 115 kV substation between the generation facility location and the existing 115 kV line corridor between Swan Ranch and King Ranch. The Point of Change of Ownership was changed to be at the dead end structure in the proposed project’s collector substation.

It should be noted that the results described in this report do not guarantee transmission service for the customer. Transmission service should be requested through the CLPT OASIS. Requests will be granted on a first-come, first serve basis.

8.1 Interconnection Customer Generation Facilities The IC Generation Facility collector substation shall be designed to include two breakered line positions to accommodate the 115 kV double circuit line between the collector substation and a new 115 kV substation designated as the POI. The entire cost of this requirement is direct assigned to the IC as part of the Generation Facility (see Table 8 below).

8.2 Network Upgrades Network Upgrades shall mean the additions, modifications, and upgrades to the Transmission Provider’s Transmission System required at or beyond the point at which the Interconnection Facilities connect to the Transmission Provider’s Transmission System to accommodate the interconnection of the Generating Facility to the Transmission Provider’s Transmission System.


May 2, 2016 | 13

Table 8: Network Upgrades

1 -Cost of property to locate and develop this facility is not included in the estimated price. The location of this proposed substation facility is currently being negotiated/acquired under a separate proposal. Any cost allocation related to the use of the substation site to support this proposed wind interconnection facility is not included in the estimate. The proposed project cost, schedule and construction timeline may be impacted by the availability and/or suitability of the site acquired. -The scope of this estimate does not include any transmission line construction costs outside of the substation facility or provisions for right of way or easements to the transmission line facilities. -Cost estimate does not include any special permitting for the proposed substation site or any special environmental considerations that may be required due to the nature or impact of the interconnecting facilities or project. -Cost estimate does not include any special metering (Utility Boundary, Generation Boundary, Control Area Boundary, etc.) or special protection (Generation Interconnect, Load Shedding, Frequency Control, etc.) systems that may be required due to the nature or impact of the interconnecting project. -Cost estimate is based upon standard BHE utility substation design and construction practices and does not factor in any special requirements of the interconnecting customer or any joint facility owners.

Facility Upgrade Description Cost Estimate Implementation Timeframe

Gen tie line from the point of intersection on the Swan Ranch-King Ranch 115 kV line to the POI sub to CLPT-G7 Facility

Construct 1.5 miles of double circuit 115 kV line utilizing 1272 ACSR on monopole structures; designed for future 230 kV operation

$1,035,000 12-18 Months

New ‘West Cheyenne’ 115 kV substation

115 kV, 2000 amp, 4-position ring bus substation including breakers, switches, instrument transformers, metering equipment, protection and control systems, foundations and support systems, control building, and associated common equipment

$4,230,0001 18-24 Months

Total: $5,265,000 18-24 Months


May 2, 2016 | 14

Appendix A: Thermal Results 2018HS Base Case compared to Change Case with CLPT-G7 in-service at 102 MW dispatched as NR to Wygen.

TOT3 flows at 1600 MW (N-S).

Branch_Outage Loading/ MVA

Base Case

Loading/ MVA

102 MW distribution

factor Remedy

73145 NUNN 115.00 73172*ROCKPRTP 115.00 1_TRR-AULT+ARH-AULT DBLCKT 83.5 98.5 14.71% No mitigation required - 121 MVA 30 min rating for switch at Rockport

73172 ROCKPRTP 115.00 73597*OWL_CRK 115.00 1_TRR-AULT+ARH-AULT DBLCKT 84.9 100.0 14.80% No mitigation required - 121 MVA 30 min rating for

switch at Rockport

73211*WELD LM 115.00 73212 WELD LM 230.00 1_WELD_PS 230.00-WELD LM 230.0 166.9 168.8 1.86% No mitigation required – within 30 minute of 125%

continuous overload rating of 187.5 MVA



2018HS Base Case compared to Change Case with CLPT-G7 in-service at 102 MW dispatched as ER to Dave Johnson #4. TOT3 flows at 1600 MW (N-S).


Base Case

Loading/ MVA

102 MW distribution

factor Remedy



switch at Rockport






May 2, 2016 | 15

2023HS Base Case compared to Change Case with CLPT-G7 in-service at 102 MW dispatched as NR to Wygen. CLPT-G6 in-service at 124 MW. TOT3 flows at 1750 MW (N-S).


Base Case

Loading/ MVA

102 MW distribution

factor Remedy



switch at Rockport





73011*AULT 230.00 73212 WELD LM 230.00 2_AULT 230.00-WELD LM 230.00 516.3 520.0 3.63 Ault-Weld has 30 minute EM Rating of 621 MVA


2023HS Base Case compared to Change Case with CLPT-G7 in-service at 102 MW dispatched as ER to Dave Johnson #4. CLPT-G6 in-service at 124 MW. TOT3 flows at 1750 MW (N-S).


Base Case

Loading/ MVA

102 MW distribution

factor Remedy



switch at Rockport








May 2, 2016 | 16

Appendix B: Simulated Contingencies CONTINGENCY LEGEND: <----- CONTINGENCY LABEL ------> EVENTS LAR.RIVR 345.00-WCHILD 345.0 : OPEN BRANCH FROM BUS 73108 [LAR.RIVR 345.00] TO BUS 72811 [WL_CHILD 345.00] CKT 1 WCHILD 345.00-KEOTA 345.0 : OPEN BRANCH FROM BUS 72811 [WL_CHILD 345.00] TO BUS 72140 [KEOTA 345.00] CKT 1 KEOTA 345.00-STORY 345.0 : OPEN BRANCH FROM BUS 72140 [KEOTA 345.00] TO BUS 73193 [STORY 345.00] CKT 1 CARR DRA 230.00-BARBERCK 230.0 : OPEN BRANCH FROM BUS 65293 [CARR DRA 230.00] TO BUS 76401 [BARBERCK 230.00] CKT 1 CASPERPP 115.00-REDBUTTETAP 115 : OPEN BRANCH FROM BUS 65305 [CASPERPP 115.00] TO BUS 900015 [REDBUTTETAP 115.00] CKT 1 REDBUTTETAP 115.00-CASPERLM 115 : OPEN BRANCH FROM BUS 900015 [REDBUTTETAP 115.00] TO BUS 73042 [CASPERLM 115.00] CKT 1 CASPERPP 115.00-REFNRYTP 115.0 : OPEN BRANCH FROM BUS 65305 [CASPERPP 115.00] TO BUS 73167 [REFNRYTP 115.00] CKT 1 DAVEJOHN 230.00-SAWMILLC 230.0 : OPEN BRANCH FROM BUS 65420 [DAVEJOHN 230.00] TO BUS 72906 [SAWMILLC 230.00] CKT 1 SAWMILLC 230.00-LAR.RIVR 230.0 : OPEN BRANCH FROM BUS 72906 [SAWMILLC 230.00] TO BUS 73107 [LAR.RIVR 230.00] CKT 1 DAVEJOHN 115.00-DAVEJTPN 115.0 : OPEN BRANCH FROM BUS 65425 [DAVEJOHN 115.00] TO BUS 73070 [DAVEJTPN 115.00] CKT 1 DAVEJOHN 115.00-BIXBY 115.0 : OPEN BRANCH FROM BUS 65425 [DAVEJOHN 115.00] TO BUS 69155 [BIXBY 115.00] CKT 1 BIXBY 115.00-DAVEJTPS 115.0 : OPEN BRANCH FROM BUS 69155 [BIXBY 115.00] TO BUS 73071 [DAVEJTPS 115.00] CKT 1 WINDSTAR 230.00-PUMPKIN 230.0 : OPEN BRANCH FROM BUS 67814 [WINDSTAR 230.00] TO BUS 76400 [PUMPKIN_BTS 230.00] CKT 1 KELIM 115.00-AIRPORT 115.0 : OPEN BRANCH FROM BUS 70008 [KELIM 115.00] TO BUS 73002 [AIRPORT 115.00] CKT 1 ST.VRAIN 230.00-LONGPEAK 230.0 : OPEN BRANCH FROM BUS 70410 [ST.VRAIN 230.00] TO BUS 73116 [LONGPEAK 230.00] CKT 1 ST.VRAIN 230.00-FORDHAM 230.0 : OPEN BRANCH FROM BUS 70410 [ST.VRAIN 230.00] TO BUS 73562 [FORDHAM 230.00] CKT 1 WELD_PS 115.00-WELD LM 115.0 : OPEN BRANCH FROM BUS 70470 [WELD_PS 115.00] TO BUS 73211 [WELD LM 115.00] CKT 1 WELD_PS 230.00-WELD LM 230.0 : OPEN BRANCH FROM BUS 70471 [WELD_PS 230.00] TO BUS 73212 [WELD LM 230.00] CKT 1 WINDSOR 230.00-AULT 230.00 : OPEN BRANCH FROM BUS 70474 [WINDSOR 230.00] TO BUS 73011 [AULT 230.00] CKT 1 BERTHOUD 115.00-LONETREE 115.0 : OPEN BRANCH FROM BUS 70534 [BERTHOUD 115.00] TO BUS 73114 [LONETREE 115.00] CKT 1 BERTHOUD 115.00-LONTRETP 115.0 : OPEN BRANCH FROM BUS 70534 [BERTHOUD 115.00] TO BUS 73561 [LONTRETP 115.00] CKT 1 SLATERTS 115.00-DEL CTAP 115.0 : OPEN BRANCH FROM BUS 72107 [SLATER_TS 115.00] TO BUS 73048 [DEL CTAP 115.00] CKT 1 SLATERTS 115.00-DELCAMIN 115.0 : OPEN BRANCH FROM BUS 72107 [SLATER_TS 115.00] TO BUS 73049 [DELCAMIN 115.00] CKT 1 AIRPORT 115.00-BOYD 115.00 : OPEN BRANCH FROM BUS 73002 [AIRPORT 115.00] TO BUS 73026 [BOYD 115.00] CKT 1 AIRPORT 115.00-WINDSORT 115.0 : OPEN BRANCH FROM BUS 73002 [AIRPORT 115.00] TO BUS 73433 [WINDSORT 115.00] CKT 1 ALCOVA 115.00-CASPERLM 115.0 : OPEN BRANCH FROM BUS 73004 [ALCOVA 115.00] TO BUS 73042 [CASPERLM 115.00] CKT 1 ALCOVA 115.00-CASPERLM 115.0 : OPEN BRANCH FROM BUS 73004 [ALCOVA 115.00] TO BUS 73042 [CASPERLM 115.00] CKT 2 ALCOVA 115.00-FREMONT 115.0 : OPEN BRANCH FROM BUS 73004 [ALCOVA 115.00] TO BUS 73062 [FREMONT 115.00] CKT 1 ALCOVA 115.00-MIRACLEM 115.0 : OPEN BRANCH FROM BUS 73004 [ALCOVA 115.00] TO BUS 73137 [MIRACLEM 115.00] CKT 1 ALCOVA 115.00-MIRACLEM 115.0 : OPEN BRANCH FROM BUS 73004 [ALCOVA 115.00] TO BUS 73137 [MIRACLEM 115.00] CKT 2 ALCOVA 115.00-RADERVIL 115.0 : OPEN BRANCH FROM BUS 73004 [ALCOVA 115.00] TO BUS 73162 [RADERVIL 115.00] CKT 1 ARCHER 115.00-CHEYENNE 115.0 : OPEN BRANCH FROM BUS 73008 [ARCHER 115.00] TO BUS 73043 [CHEYENNE 115.00] CKT 1 ARCHER 115.00-CROWCRK 115.0 : OPEN BRANCH FROM BUS 73008 [ARCHER 115.00] TO BUS 73480 [CROWCRK 115.00] CKT 1 ARCHER 115.00-MYERS TP 115.0 : OPEN BRANCH FROM BUS 73008 [ARCHER 115.00] TO BUS 73140 [MYERS TP 115.00] CKT 1 ARCHER 115.00-PINEBLUF 115.0 : OPEN BRANCH FROM BUS 73008 [ARCHER 115.00] TO BUS 73152 [PINEBLUF 115.00] CKT 1 ARCHER 115.00-CPGSTN 115.0 : OPEN BRANCH FROM BUS 73008 [ARCHER 115.00] TO BUS 74060 [CPGSTN 115.00] CKT 1 CPGSTN 115.00-EB PARK 115.0 : OPEN BRANCH FROM BUS 74060 [CPGSTN 115.00] TO BUS 74041 [EB PARK 115.00] CKT 1 ARCHER 230.00-AULT 230.00 : OPEN BRANCH FROM BUS 73009 [ARCHER 230.00] TO BUS 73011 [AULT 230.00] CKT 1 ARCHER 230.00-STEGALL 230.0 : OPEN BRANCH FROM BUS 73009 [ARCHER 230.00] TO BUS 73190 [STEGALL 230.00] CKT 1 ARCHER 230.00-TERRY_RANCH 230 : OPEN BRANCH FROM BUS 73009 [ARCHER 230.00] TO BUS 73488 [TERRY_RANCH 230.00] CKT 1 ARCHER 230.00-WAYNECHILD 230 : OPEN BRANCH FROM BUS 73009 [ARCHER 230.00] TO BUS 72818 [WL_CHILD 230.00] CKT 1 TERRY_RANCH 230.00-NORTH PARK 2 : OPEN BRANCH FROM BUS 73488 [TERRY_RANCH 230.00] TO BUS 73616 [NORTH PARK 230.00] CKT 1


May 2, 2016 | 17

AULT 230.00-RAWHIDE 230.00 : OPEN BRANCH FROM BUS 73011 [AULT 230.00] TO BUS 73165 [RAWHIDE 230.00] CKT 1 RAWHIDE 230.00-TIMBERLN 230.0 : OPEN BRANCH FROM BUS 73165 [RAWHIDE 230.00] TO BUS 73199 [TIMBERLN 230.00] CKT 1 1_AULT 230.00-WELD LM 230.00 : OPEN BRANCH FROM BUS 73011 [AULT 230.00] TO BUS 73212 [WELD LM 230.00] CKT 1 2_AULT 230.00-WELD LM 230.00 : OPEN BRANCH FROM BUS 73011 [AULT 230.00] TO BUS 73212 [WELD LM 230.00] CKT 2 AULT 230.00-TERRY_RANCH 230.0 : OPEN BRANCH FROM BUS 73011 [AULT 230.00] TO BUS 73488 [TERRY_RANCH 230.00] CKT 1 AULT 345.00-LAR.RIVR 345.00 : OPEN BRANCH FROM BUS 73012 [AULT 345.00] TO BUS 73108 [LAR.RIVR 345.00] CKT 1 AULT 345.00-CRAIG 345.00 : OPEN BRANCH FROM BUS 73012 [AULT 345.00] TO BUS 79014 [CRAIG 345.00] CKT 1 BLKHLWTP 115.00-COBBLKTP 115.0 : OPEN BRANCH FROM BUS 73024 [BLKHLWTP 115.00] TO BUS 73044 [COBBLKTP 115.00] CKT 1 BLKHLWTP 115.00-AULT 115.00 : OPEN BRANCH FROM BUS 73024 [BLKHLWTP 115.00] TO BUS 73552 [AULT 115.00] CKT 1 BOYD 115.00-LOVE E 115.00 : OPEN BRANCH FROM BUS 73026 [BOYD 115.00] TO BUS 73118 [LOVE E 115.00] CKT 1 BOYD 115.00-VALLEYLM 115.00 : OPEN BRANCH FROM BUS 73026 [BOYD 115.00] TO BUS 73373 [VALLEYLM 115.00] CKT 1 BOYD 115.00-LONTRETP 115.00 : OPEN BRANCH FROM BUS 73026 [BOYD 115.00] TO BUS 73561 [LONTRETP 115.00] CKT 1 BOYD 115.00-DERBHILT 115.00 : OPEN BRANCH FROM BUS 73026 [BOYD 115.00] TO BUS 73595 [DERBHILT 115.00] CKT 1 BOYD 230.00-LONGPEAK 230.00 : OPEN BRANCH FROM BUS 73027 [BOYD 230.00] TO BUS 73116 [LONGPEAK 230.00] CKT 1 BOYD 230.00-PORTNER 230.00 : OPEN BRANCH FROM BUS 73027 [BOYD 230.00] TO BUS 73604 [PORTNER 230.00] CKT 1 BRIGHTNW 115.00-SANDCRK 115.0 : OPEN BRANCH FROM BUS 73030 [BRIGHTNW 115.00] TO BUS 73493 [SANDCRK 115.00] CKT 1 BRIGHTNW 115.00-ERIE SW 115.0 : OPEN BRANCH FROM BUS 73030 [BRIGHTNW 115.00] TO BUS 73503 [ERIE SW 115.00] CKT 1 BUSHNLTP 115.00-PINEBLUF 115.0 : OPEN BRANCH FROM BUS 73038 [BUSHNLTP 115.00] TO BUS 73152 [PINEBLUF 115.00] CKT 1 CARTERLK 115.00-FLATIRON 115.0 : OPEN BRANCH FROM BUS 73039 [CARTERLK 115.00] TO BUS 73058 [FLATIRON 115.00] CKT 1 CARTERLK 115.00-LOVEWTAP 115.0 : OPEN BRANCH FROM BUS 73039 [CARTERLK 115.00] TO BUS 73124 [LOVEWTAP 115.00] CKT 1 CASPERLM 115.00-DAVEJTPN 115.0 : OPEN BRANCH FROM BUS 73042 [CASPERLM 115.00] TO BUS 73070 [DAVEJTPN 115.00] CKT 1 CHEYENNE 115.00-HAPPYJCK 115.0 : OPEN BRANCH FROM BUS 73043 [CHEYENNE 115.00] TO BUS 73077 [HAPPYJCK 115.00] CKT 1 CHEYENNE 115.00-CROWCRK 115.0 : OPEN BRANCH FROM BUS 73043 [CHEYENNE 115.00] TO BUS 73480 [CROWCRK 115.00] CKT 1 CHEYENNE 115.00-PONNEQUI 115.0 : OPEN BRANCH FROM BUS 73043 [CHEYENNE 115.00] TO BUS 73504 [PONNEQUI 115.00] CKT 1 COBBLKTP 115.00-TIMNATH 115.0 : OPEN BRANCH FROM BUS 73044 [COBBLKTP 115.00] TO BUS 73200 [TIMNATH 115.00] CKT 1 COBBLKTP 115.00-COBBLAKE 115.0 : OPEN BRANCH FROM BUS 73044 [COBBLKTP 115.00] TO BUS 73600 [COBBLAKE 115.00] CKT 1 DEL CTAP 115.00-LONGPEAK 115.0 : OPEN BRANCH FROM BUS 73048 [DEL CTAP 115.00] TO BUS 73115 [LONGPEAK 115.00] CKT 1 DEL CTAP 115.00-MEADOW 115.0 : OPEN BRANCH FROM BUS 73048 [DEL CTAP 115.00] TO BUS 73133 [MEADOW 115.00] CKT 1 DELCAMIN 115.00-RINNVALL 115.0 : OPEN BRANCH FROM BUS 73049 [DELCAMIN 115.00] TO BUS 73501 [RINNVALL 115.00] CKT 1 DERBYHIL 115.00-DERBHILT 115.0 : OPEN BRANCH FROM BUS 73050 [DERBYHIL 115.00] TO BUS 73595 [DERBHILT 115.00] CKT 1 DIXON CK 115.00-DRAKE RD 115.0 : OPEN BRANCH FROM BUS 73051 [DIXON CK 115.00] TO BUS 73052 [DRAKE RD 115.00] CKT 1 DIXON CK 115.00-HRSTHTAP 115.0 : OPEN BRANCH FROM BUS 73051 [DIXON CK 115.00] TO BUS 73089 [HRSTHTAP 115.00] CKT 1 DIXON CK 115.00-POUDRE 115.0 : OPEN BRANCH FROM BUS 73051 [DIXON CK 115.00] TO BUS 73156 [POUDRE 115.00] CKT 1 DRAKE RD 115.00-TIMBERLN 115.0 : OPEN BRANCH FROM BUS 73052 [DRAKE RD 115.00] TO BUS 73198 [TIMBERLN 115.00] CKT 1 ESTES 115.00-POLEHILL 115.0 : OPEN BRANCH FROM BUS 73056 [ESTES 115.00] TO BUS 73155 [POLEHILL 115.00] CKT 1 ESTES 115.00-MARYLKSB 115.0 : OPEN BRANCH FROM BUS 73056 [ESTES 115.00] TO BUS 73232 [MARYLKSB 115.00] CKT 1 ESTES 115.00-MARYLKTP 115.0 : OPEN BRANCH FROM BUS 73056 [ESTES 115.00] TO BUS 73233 [MARYLKTP 115.00] CKT 1 ESTES 115.00-WAGONWHL 115.0 : OPEN BRANCH FROM BUS 73056 [ESTES 115.00] TO BUS 73556 [WAGONWHL 115.00] CKT 1 FLATIRON 115.00-HRSTHTAP 115.0 : OPEN BRANCH FROM BUS 73058 [FLATIRON 115.00] TO BUS 73089 [HRSTHTAP 115.00] CKT 1 FLATIRON 115.00-POLEHILL 115.0 : OPEN BRANCH FROM BUS 73058 [FLATIRON 115.00] TO BUS 73155 [POLEHILL 115.00] CKT 1 FORDHAM 115.00-TERRY 115.0 : OPEN BRANCH FROM BUS 73060 [FORDHAM 115.00] TO BUS 73196 [TERRY 115.00] CKT 1 FORDHAM 115.00-ROGERSRD 115.0 : OPEN BRANCH FROM BUS 73060 [FORDHAM 115.00] TO BUS 73437 [ROGERSRD 115.00] CKT 1 GEMCTYTP 115.00-SPRINGCK 115.0 : OPEN BRANCH FROM BUS 73066 [GEMCTYTP 115.00] TO BUS 73187 [SPRINGCK 115.00] CKT 1 GEMCTYTP 115.00-SNOWYRNG 115.0 : OPEN BRANCH FROM BUS 73066 [GEMCTYTP 115.00] TO BUS 73570 [SNOWYRNG 115.00] CKT 1 GLENDO 115.00-GUERNTAP 115.0 : OPEN BRANCH FROM BUS 73069 [GLENDO 115.00] TO BUS 73076 [GUERNTAP 115.00] CKT 1 GLENDO 115.00-PODOLAK 115.0 : OPEN BRANCH FROM BUS 73069 [GLENDO 115.00] TO BUS 73153 [PODOLAK 115.00] CKT 1 GLENDO 115.00-WHTROCK 115.0 : OPEN BRANCH FROM BUS 73069 [GLENDO 115.00] TO BUS 73568 [WHTROCK 115.00] CKT 1 GLENDO 115.00-WAGHN NT 115.0 : OPEN BRANCH FROM BUS 73069 [GLENDO 115.00] TO BUS 73607 [WAGHN NT 115.00] CKT 1


May 2, 2016 | 18

GLENDO 115.00-WAGHN ST 115.0 : OPEN BRANCH FROM BUS 73069 [GLENDO 115.00] TO BUS 73608 [WAGHN ST 115.00] CKT 1 DAVEJTPN 115.00-WAGHN NT 115.0 : OPEN BRANCH FROM BUS 73070 [DAVEJTPN 115.00] TO BUS 73607 [WAGHN NT 115.00] CKT 1 DAVEJTPS 115.00-REFNRYTP 115.0 : OPEN BRANCH FROM BUS 73071 [DAVEJTPS 115.00] TO BUS 73167 [REFNRYTP 115.00] CKT 1 DAVEJTPS 115.00-WAGHN ST 115.0 : OPEN BRANCH FROM BUS 73071 [DAVEJTPS 115.00] TO BUS 73608 [WAGHN ST 115.00] CKT 1 GUERNTAP 115.00-LIMESTON 115.0 : OPEN BRANCH FROM BUS 73076 [GUERNTAP 115.00] TO BUS 73359 [LIMESTON 115.00] CKT 1 GUERNTAP 115.00-GUERNRRL 115.0 : OPEN BRANCH FROM BUS 73076 [GUERNTAP 115.00] TO BUS 73368 [GUERNRRL 115.00] CKT 1 GUERNTAP 115.00-WHTROCK 115.0 : OPEN BRANCH FROM BUS 73076 [GUERNTAP 115.00] TO BUS 73568 [WHTROCK 115.00] CKT 1 HAPPYJCK 115.00-NORTH RANGE 115 : OPEN BRANCH FROM BUS 73077 [HAPPYJCK 115.00] TO BUS 74039 [NORTHRNG 115.00] CKT 1 HAPPYJCK 115.00-HJWIND 115.0 : OPEN BRANCH FROM BUS 73077 [HAPPYJCK 115.00] TO BUS 74048 [HJWIND 115.00] CKT 1 HARMONY 230.00-TIMBERLN 230.0 : OPEN BRANCH FROM BUS 73078 [HARMONY 230.00] TO BUS 73199 [TIMBERLN 230.00] CKT 1 HARMONY 230.00-PORTNER 230.0 : OPEN BRANCH FROM BUS 73078 [HARMONY 230.00] TO BUS 73604 [PORTNER 230.00] CKT 1 HARVARD 115.00-LNGMNTNW 115.0 : OPEN BRANCH FROM BUS 73079 [HARVARD 115.00] TO BUS 73113 [LNGMNTNW 115.00] CKT 1 HORSESHO 115.00-LOVE W 115.0 : OPEN BRANCH FROM BUS 73086 [HORSESHO 115.00] TO BUS 73120 [LOVE W 115.00] CKT 1 HORSESHO 115.00-CROSSRDS 115.0 : OPEN BRANCH FROM BUS 73086 [HORSESHO 115.00] TO BUS 73499 [CROSSRDS 115.00] CKT 1 HRSTHTAP 115.00-TRILBY 115.0 : OPEN BRANCH FROM BUS 73089 [HRSTHTAP 115.00] TO BUS 73203 [TRILBY 115.00] CKT 1 HRSTHTAP 115.00-MASONVIL 115.0 : OPEN BRANCH FROM BUS 73089 [HRSTHTAP 115.00] TO BUS 73235 [MASONVIL 115.00] CKT 1 HYGIENE 115.00-LNGMNTNW 115.0 : OPEN BRANCH FROM BUS 73090 [HYGIENE 115.00] TO BUS 73113 [LNGMNTNW 115.00] CKT 1 HYGIENE 115.00-LYONS 115.0 : OPEN BRANCH FROM BUS 73090 [HYGIENE 115.00] TO BUS 73127 [LYONS 115.00] CKT 1 KODAK 115.00-WHITNEY 115.0 : OPEN BRANCH FROM BUS 73098 [KODAK 115.00] TO BUS 73558 [WHITNEY 115.00] CKT 1 KODAK 115.00-WHITNEY 115.0 : OPEN BRANCH FROM BUS 73098 [KODAK 115.00] TO BUS 73558 [WHITNEY 115.00] CKT 2 KORTES 115.00-KORTESTP 115.0 : OPEN BRANCH FROM BUS 73099 [KORTES 115.00] TO BUS 73100 [KORTESTP 115.00] CKT 1 KORTES 115.00-MIRACLEM 115.0 : OPEN BRANCH FROM BUS 73099 [KORTES 115.00] TO BUS 73137 [MIRACLEM 115.00] CKT 1 KORTESTP 115.00-MIRACLEM 115.0 : OPEN BRANCH FROM BUS 73100 [KORTESTP 115.00] TO BUS 73137 [MIRACLEM 115.00] CKT 1 KORTESTP 115.00-SEMINOE 115.0 : OPEN BRANCH FROM BUS 73100 [KORTESTP 115.00] TO BUS 73176 [SEMINOE 115.00] CKT 1 LAGRANGE 115.00-ROUNDTOP 115.0 : OPEN BRANCH FROM BUS 73104 [LAGRANGE 115.00] TO BUS 73173 [ROUNDTOP 115.00] CKT 1 LAGRANGE 115.00-STEGALL 115.0 : OPEN BRANCH FROM BUS 73104 [LAGRANGE 115.00] TO BUS 73189 [STEGALL 115.00] CKT 1 LAPORTE 115.00-BELLVUTP 115.0 : OPEN BRANCH FROM BUS 73105 [LAPORTE 115.00] TO BUS 73298 [BELLVUTP 115.00] CKT 1 LAPORTE 230.00-RAWHIDE 230.0 : OPEN BRANCH FROM BUS 73106 [LAPORTE 230.00] TO BUS 73165 [RAWHIDE 230.00] CKT 1 LAPORTE 230.00-RAWHIDE 230.0 : OPEN BRANCH FROM BUS 73106 [LAPORTE 230.00] TO BUS 73165 [RAWHIDE 230.00] CKT 2 LAPORTE 230.00-TIMBERLN 230.0 : OPEN BRANCH FROM BUS 73106 [LAPORTE 230.00] TO BUS 73199 [TIMBERLN 230.00] CKT 1 LAPORTE 230.00-COLLEGLK 230.0 : OPEN BRANCH FROM BUS 73106 [LAPORTE 230.00] TO BUS 73470 [COLLEGLK 230.00] CKT 1 LAR.RIVR 230.00-STEGALL 230.0 : OPEN BRANCH FROM BUS 73107 [LAR.RIVR 230.00] TO BUS 73190 [STEGALL 230.00] CKT 1 LARAMIE 115.00-OASISTAP 115.0 : OPEN BRANCH FROM BUS 73109 [LARAMIE 115.00] TO BUS 73146 [OASISTAP 115.00] CKT 1 LARAMIE 115.00-SNOWYRNG 115.0 : OPEN BRANCH FROM BUS 73109 [LARAMIE 115.00] TO BUS 73570 [SNOWYRNG 115.00] CKT 1 LINDEN 115.00-RICHARDS 115.0 : OPEN BRANCH FROM BUS 73111 [LINDEN 115.00] TO BUS 73169 [RICHARDS 115.00] CKT 1 LINDEN 115.00-TIMBERLN 115.0 : OPEN BRANCH FROM BUS 73111 [LINDEN 115.00] TO BUS 73198 [TIMBERLN 115.00] CKT 1 LINGLE 115.00-LINGLETP 115.0 : OPEN BRANCH FROM BUS 73112 [LINGLE 115.00] TO BUS 73255 [LINGLETP 115.00] CKT 1 LNGMNTNW 115.00-MEADOW 115.0 : OPEN BRANCH FROM BUS 73113 [LNGMNTNW 115.00] TO BUS 73133 [MEADOW 115.00] CKT 1 LNGMNTNW 115.00-GLDNPNDS 115.0 : OPEN BRANCH FROM BUS 73113 [LNGMNTNW 115.00] TO BUS 73578 [GLDNPNDS 115.00] CKT 1 LONGPEAK 115.00-CNTYLINE 115.0 : OPEN BRANCH FROM BUS 73115 [LONGPEAK 115.00] TO BUS 73465 [CNTYLINE 115.00] CKT 1 LOVE E 115.00-CROSSRDS 115.0 : OPEN BRANCH FROM BUS 73118 [LOVE E 115.00] TO BUS 73499 [CROSSRDS 115.00] CKT 1 LOVE W 115.00-LOVEWTAP 115.0 : OPEN BRANCH FROM BUS 73120 [LOVE W 115.00] TO BUS 73124 [LOVEWTAP 115.00] CKT 1 LOVEWTAP 115.00-VALLEYLM 115.0 : OPEN BRANCH FROM BUS 73124 [LOVEWTAP 115.00] TO BUS 73373 [VALLEYLM 115.00] CKT 1 LYMAN 115.00-LYMANTP 115.0 : OPEN BRANCH FROM BUS 73126 [LYMAN 115.00] TO BUS 73256 [LYMANTP 115.00] CKT 1 LYONS 115.00-DOWE FLATS 115 : OPEN BRANCH FROM BUS 73127 [LYONS 115.00] TO BUS 72407 [DOWE FLATS 115.00] CKT 1 DOWE FLATS 115.00-ROCKMTCM 115 : OPEN BRANCH FROM BUS 72407 [DOWE FLATS 115.00] TO BUS 73171 [ROCKMTCM 115.00] CKT 1 LYONS 115.00-WAGONWHL 115.0 : OPEN BRANCH FROM BUS 73127 [LYONS 115.00] TO BUS 73556 [WAGONWHL 115.00] CKT 1 MAY 115.00-OASISTAP 115.00 : OPEN BRANCH FROM BUS 73128 [MAY 115.00] TO BUS 73146 [OASISTAP 115.00] CKT 1


May 2, 2016 | 19

MCKENZIE 69.000-MARYLKSB 69.00 : OPEN BRANCH FROM BUS 73132 [MCKENZIE 69.000] TO BUS 73436 [MARYLKSB 69.000] CKT 1 MED BOW 115.00-MEDBOWTP 115.0 : OPEN BRANCH FROM BUS 73134 [MED BOW 115.00] TO BUS 73362 [MEDBOWTP 115.00] CKT 1 MIRACLEM 115.00-SEMINOTP 115.0 : OPEN BRANCH FROM BUS 73137 [MIRACLEM 115.00] TO BUS 73177 [SEMINOTP 115.00] CKT 1 MIRACLEM 115.00-MEDBOWTP 115.0 : OPEN BRANCH FROM BUS 73137 [MIRACLEM 115.00] TO BUS 73362 [MEDBOWTP 115.00] CKT 1 MYERS 115.00-MYERS TP 115.0 : OPEN BRANCH FROM BUS 73139 [MYERS 115.00] TO BUS 73140 [MYERS TP 115.00] CKT 1 MYERS TP 115.00-POLE CK 115.0 : OPEN BRANCH FROM BUS 73140 [MYERS TP 115.00] TO BUS 73154 [POLE CK 115.00] CKT 1 NUNN 115.00-ROCKPRTP 115.00 : OPEN BRANCH FROM BUS 73145 [NUNN 115.00] TO BUS 73172 [ROCKPRTP 115.00] CKT 1 NUNN 115.00-AULT 115.00 #1 : OPEN BRANCH FROM BUS 73145 [NUNN 115.00] TO BUS 73552 [AULT 115.00] CKT 1 OASISTAP 115.00-MEDBOWTP 115.0 : OPEN BRANCH FROM BUS 73146 [OASISTAP 115.00] TO BUS 73362 [MEDBOWTP 115.00] CKT 1 POLE CK 115.00-QUALLS 115.0 : OPEN BRANCH FROM BUS 73154 [POLE CK 115.00] TO BUS 73161 [QUALLS 115.00] CKT 1 POLE CK 115.00-ROUNDTOP 115.0 : OPEN BRANCH FROM BUS 73154 [POLE CK 115.00] TO BUS 73173 [ROUNDTOP 115.00] CKT 1 POUDRE 115.00-RICHRDTP 115.0 : OPEN BRANCH FROM BUS 73156 [POUDRE 115.00] TO BUS 73466 [RICHRDTP 115.00] CKT 1 RICHARDS 115.00-WAVER PV 115.0 : OPEN BRANCH FROM BUS 73169 [RICHARDS 115.00] TO BUS 73469 [WAVER PV 115.00] CKT 1 ROCKPRTP 115.00-OWL_CRK 115.0 : OPEN BRANCH FROM BUS 73172 [ROCKPRTP 115.00] TO BUS 73597 [OWL_CRK 115.00] CKT 1 ROUNDTOP 115.00-SENTINEL 115.0 : OPEN BRANCH FROM BUS 73173 [ROUNDTOP 115.00] TO BUS 73178 [SENTINEL 115.00] CKT 1 SEMINOE 115.00-SEMINOTP 115.0 : OPEN BRANCH FROM BUS 73176 [SEMINOE 115.00] TO BUS 73177 [SEMINOTP 115.00] CKT 1 SPRINGCK 115.00-FTSANDER 115.0 : OPEN BRANCH FROM BUS 73187 [SPRINGCK 115.00] TO BUS 73367 [FTSANDER 115.00] CKT 1 STEGALL 115.00-LINGLETP 115.0 : OPEN BRANCH FROM BUS 73189 [STEGALL 115.00] TO BUS 73255 [LINGLETP 115.00] CKT 1 STEGALL 115.00-LYMANTP 115.0 : OPEN BRANCH FROM BUS 73189 [STEGALL 115.00] TO BUS 73256 [LYMANTP 115.00] CKT 1 TERRY 115.00-CNTYLINE 115.0 : OPEN BRANCH FROM BUS 73196 [TERRY 115.00] TO BUS 73465 [CNTYLINE 115.00] CKT 1 TERRY 115.00-ERIE SW 115.0 : OPEN BRANCH FROM BUS 73196 [TERRY 115.00] TO BUS 73503 [ERIE SW 115.00] CKT 1 TERRY 115.00-GLDNPNDS 115.0 : OPEN BRANCH FROM BUS 73196 [TERRY 115.00] TO BUS 73578 [GLDNPNDS 115.00] CKT 1 TIMNATH 115.00-RICHRDTP 115.0 : OPEN BRANCH FROM BUS 73200 [TIMNATH 115.00] TO BUS 73466 [RICHRDTP 115.00] CKT 1 TIMNATH 115.00-BOXELDER 115.0 : OPEN BRANCH FROM BUS 73200 [TIMNATH 115.00] TO BUS 73553 [BOXELDER 115.00] CKT 1 WELD LM 115.00-BOOMERNG 115.0 : OPEN BRANCH FROM BUS 73211 [WELD LM 115.00] TO BUS 73554 [BOOMERNG 115.00] CKT 1 WELD LM 115.00-WHITNEY 115.0 : OPEN BRANCH FROM BUS 73211 [WELD LM 115.00] TO BUS 73558 [WHITNEY 115.00] CKT 1 WINDSOR 115.00-WINDSORT 115.0 : OPEN BRANCH FROM BUS 73218 [WINDSOR 115.00] TO BUS 73433 [WINDSORT 115.00] CKT 1 MARYLKPP 115.00-MARYLKTP 115.0 : OPEN BRANCH FROM BUS 73231 [MARYLKPP 115.00] TO BUS 73233 [MARYLKTP 115.00] CKT 1 MARYLKSB 115.00-MARYLKTP 115.0 : OPEN BRANCH FROM BUS 73232 [MARYLKSB 115.00] TO BUS 73233 [MARYLKTP 115.00] CKT 1 LINGLETP 115.00-WHTROCK 115.0 : OPEN BRANCH FROM BUS 73255 [LINGLETP 115.00] TO BUS 73568 [WHTROCK 115.00] CKT 1 LYMANTP 115.00-WHTROCK 115.0 : OPEN BRANCH FROM BUS 73256 [LYMANTP 115.00] TO BUS 73568 [WHTROCK 115.00] CKT 1 TEKLA 230.00-PUMPKIN 230.0 : OPEN BRANCH FROM BUS 73276 [TEKLA 230.00] TO BUS 76400 [PUMPKIN_BTS 230.00] CKT 1 BELLEVUE 115.00-BELLVUTP 115.0 : OPEN BRANCH FROM BUS 73297 [BELLEVUE 115.00] TO BUS 73298 [BELLVUTP 115.00] CKT 1 BELLVUTP 115.00-RIPPLE 115.0 : OPEN BRANCH FROM BUS 73298 [BELLVUTP 115.00] TO BUS 73325 [RIPPLE 115.00] CKT 1 JACKLOPE 115.00-WARMSPGS 115.0 : OPEN BRANCH FROM BUS 73354 [JACKLOPE 115.00] TO BUS 73364 [WARMSPGS 115.00] CKT 1 MEDBOWHS 115.00-MEDBOWTP 115.0 : OPEN BRANCH FROM BUS 73361 [MEDBOWHS 115.00] TO BUS 73362 [MEDBOWTP 115.00] CKT 1 WARMSPGS 115.00-EMI TAP 115.0 : OPEN BRANCH FROM BUS 73364 [WARMSPGS 115.00] TO BUS 73611 [EMI TAP 115.00] CKT 1 WAGNHNDS 115.00-WAGHN NT 115.0 : OPEN BRANCH FROM BUS 73366 [WAGNHNDS 115.00] TO BUS 73607 [WAGHN NT 115.00] CKT 1 WAGNHNDS 115.00-EMI TAP 115.0 : OPEN BRANCH FROM BUS 73366 [WAGNHNDS 115.00] TO BUS 73611 [EMI TAP 115.00] CKT 1 VALLEYLM 115.00-DERBHILT 115.0 : OPEN BRANCH FROM BUS 73373 [VALLEYLM 115.00] TO BUS 73595 [DERBHILT 115.00] CKT 1 WARRENLM 115.00-NTHRNGE 115.0 : OPEN BRANCH FROM BUS 73375 [WARRENLM 115.00] TO BUS 74039 [NORTHRNG 115.00] CKT 1 WINDSORT 115.00-WHITNEY 115.0 : OPEN BRANCH FROM BUS 73433 [WINDSORT 115.00] TO BUS 73558 [WHITNEY 115.00] CKT 1 ROGERSRD 115.00-GLDNPNDS 115.0 : OPEN BRANCH FROM BUS 73437 [ROGERSRD 115.00] TO BUS 73578 [GLDNPNDS 115.00] CKT 1 DIXON CK 230.00-COLLEGLK 230.0 : OPEN BRANCH FROM BUS 73467 [DIXON CK 230.00] TO BUS 73470 [COLLEGLK 230.00] CKT 1 DIXON CK 230.00-HORSESHO 230.0 : OPEN BRANCH FROM BUS 73467 [DIXON CK 230.00] TO BUS 73535 [HORSESHO 230.00] CKT 1 RINNVALL 115.00-DACONO 115.0 : OPEN BRANCH FROM BUS 73501 [RINNVALL 115.00] TO BUS 73502 [DACONO 115.00] CKT 1 DACONO 115.00-ERIE SW 115.0 : OPEN BRANCH FROM BUS 73502 [DACONO 115.00] TO BUS 73503 [ERIE SW 115.00] CKT 1 PONNEQUI 115.00-OWL_CRK 115.0 : OPEN BRANCH FROM BUS 73504 [PONNEQUI 115.00] TO BUS 73597 [OWL_CRK 115.00] CKT 1


May 2, 2016 | 20

CHEYENNE 230.00-SNOWYRNG 230.0 : OPEN BRANCH FROM BUS 73536 [CHEYENNE 230.00] TO BUS 73571 [SNOWYRNG 230.00] CKT 1 CHEYENNE 230.00-TERRY_RANCH 230 : OPEN BRANCH FROM BUS 73536 [CHEYENNE 230.00] TO BUS 73488 [TERRY_RANCH 230.00] CKT 1 BRACEWLL 115.00-WHITNEY 115.0 : OPEN BRANCH FROM BUS 73555 [BRACEWLL 115.00] TO BUS 73558 [WHITNEY 115.00] CKT 1 BRACEWLL 115.00-WHITNEY 115.0 : OPEN BRANCH FROM BUS 73555 [BRACEWLL 115.00] TO BUS 73558 [WHITNEY 115.00] CKT 2 SNOWYRNG 230.00-MIRACLEM 230.0 : OPEN BRANCH FROM BUS 73571 [SNOWYRNG 230.00] TO BUS 73572 [MIRACLEM 230.00] CKT 1 WHEATLND 69.000-LAR.RIVR 69.00 : OPEN BRANCH FROM BUS 73602 [WHEATLND 69.000] TO BUS 73603 [LAR.RIVR 69.000] CKT 1 EMIGRNT 115.00-EMI TAP 115.0 : OPEN BRANCH FROM BUS 73610 [EMIGRNT 115.00] TO BUS 73611 [EMI TAP 115.00] CKT 1 CHEY_S 115.00-SWANRNCH 115.0 : OPEN BRANCH FROM BUS 74037 [CHEY_S 115.00] TO BUS 74040 [SWANRNCH 115.00] CKT 1 LGIR-G7 115.00-SWANRNCH 115.0 : OPEN BRANCH FROM BUS 74067 [G7WNDHI 115.00] TO BUS 74040 [SWANRNCH 115.00] CKT 1 LGIR-G7 115.00-KING RANCH 115 : OPEN BRANCH FROM BUS 74067 [G7WNDHI 115.00] TO BUS 74056 [KING RANCH 115.00] CKT 1 PUMPKIN 230.00-BARBERCK 230.0 : OPEN BRANCH FROM BUS 76400 [PUMPKIN_BTS 230.00] TO BUS 76401 [BARBERCK 230.00] CKT 1 CHEY_S 115.00-CORLETT 115.0 : OPEN BRANCH FROM BUS 74037 [CHEY_S 115.00] TO BUS 73348 [CORLETT 115.00] CKT 1 NTHRNGE 115.00-CORLETT 115.0 : OPEN BRANCH FROM BUS 74039 [NORTHRNG 115.00] TO BUS 73348 [CORLETT 115.00] CKT 1 TRR-AULT+ARH-AULT DBLCKT : OPEN BRANCH FROM BUS 73009 [ARCHER 230.00] TO BUS 73011 [AULT 230.00] CKT 1 : OPEN BRANCH FROM BUS 73011 [AULT 230.00] TO BUS 73488 [TERRY_RANCH 230.00] CKT 1 RAWHIDE 24.000-RAWHIDE 230.0 : OPEN BRANCH FROM BUS 70350 [RAWHIDE 24.000] TO BUS 73165 [RAWHIDE 230.00] CKT U1 RAWHIDEA 13.800-RAWHIDE 230.0 : OPEN BRANCH FROM BUS 70351 [RAWHIDEA 13.800] TO BUS 73165 [RAWHIDE 230.00] CKT UA PONNEQUI 26.100-PONNEQUI 115.0 : OPEN BRANCH FROM BUS 70503 [PONNEQUI 26.100] TO BUS 73504 [PONNEQUI 115.00] CKT U1 RAWHIDEF 18.000-RAWHIDE 230.0 : OPEN BRANCH FROM BUS 70561 [RAWHIDEF 18.000] TO BUS 73165 [RAWHIDE 230.00] CKT UF RAWHIDED 13.800-RAWHIDE 230.0 : OPEN BRANCH FROM BUS 70567 [RAWHIDED 13.800] TO BUS 73165 [RAWHIDE 230.00] CKT UD RAWHIDEB 13.800-RAWHIDE 230.0 : OPEN BRANCH FROM BUS 70568 [RAWHIDEB 13.800] TO BUS 73165 [RAWHIDE 230.00] CKT UB RAWHIDEC 13.800-RAWHIDE 230.0 : OPEN BRANCH FROM BUS 70569 [RAWHIDEC 13.800] TO BUS 73165 [RAWHIDE 230.00] CKT UC ALCOVA 115.00-ALCOVA1 6.600 : OPEN BRANCH FROM BUS 73004 [ALCOVA 115.00] TO BUS 73332 [ALCOVA1 6.9000] CKT 1 ALCOVA 115.00-ALCOVA2 6.600 : OPEN BRANCH FROM BUS 73004 [ALCOVA 115.00] TO BUS 73438 [ALCOVA2 6.9000] CKT 1 AULT 230.00-AULT 345.00 #1 : OPEN BRANCH FROM BUS 73011 [AULT 230.00] TO BUS 73012 [AULT 345.00] CKT 1 AULT 230.00-AULT 345.00 #2 : OPEN BRANCH FROM BUS 73011 [AULT 230.00] TO BUS 73012 [AULT 345.00] CKT 2 AULT 230.00-AULT 345.00 #3 : OPEN BRANCH FROM BUS 73011 [AULT 230.00] TO BUS 73012 [AULT 345.00] CKT 3 BOYD 115.00-BOYD 230.00 #1 : OPEN BRANCH FROM BUS 73026 [BOYD 115.00] TO BUS 73027 [BOYD 230.00] CKT 1 BOYD 115.00-BOYD 230.00 #2 : OPEN BRANCH FROM BUS 73026 [BOYD 115.00] TO BUS 73027 [BOYD 230.00] CKT 2 DIXON CK 115.00-DIXON CK 230.0 : OPEN BRANCH FROM BUS 73051 [DIXON CK 115.00] TO BUS 73467 [DIXON CK 230.00] CKT 1 DIXON CK 115.00-DIXON CK 230.0 : OPEN BRANCH FROM BUS 73051 [DIXON CK 115.00] TO BUS 73467 [DIXON CK 230.00] CKT 2 ESTES 115.00-ESTES1 6.900 : OPEN BRANCH FROM BUS 73056 [ESTES 115.00] TO BUS 73306 [ESTES1 6.9000] CKT 1 ESTES 115.00-ESTES2 6.900 : OPEN BRANCH FROM BUS 73056 [ESTES 115.00] TO BUS 73307 [ESTES2 6.9000] CKT 1 ESTES 115.00-ESTES3 6.900 : OPEN BRANCH FROM BUS 73056 [ESTES 115.00] TO BUS 73308 [ESTES3 6.9000] CKT 1 FLATIRON 115.00-FLATIRN1 13.80 : OPEN BRANCH FROM BUS 73058 [FLATIRON 115.00] TO BUS 73448 [FLATIRN1 13.800] CKT 1 FLATIRON 115.00-FLATIRN2 13.80 : OPEN BRANCH FROM BUS 73058 [FLATIRON 115.00] TO BUS 73449 [FLATIRN2 13.800] CKT 1 FORDHAM 115.00-FORDHAM 230.0 : OPEN BRANCH FROM BUS 73060 [FORDHAM 115.00] TO BUS 73562 [FORDHAM 230.00] CKT 1 FORDHAM 115.00-FORDHAM 230.0 : OPEN BRANCH FROM BUS 73060 [FORDHAM 115.00] TO BUS 73562 [FORDHAM 230.00] CKT 2 FREMONT 115.00-FREMONT1 12.00 : OPEN BRANCH FROM BUS 73062 [FREMONT 115.00] TO BUS 73349 [FREMONT1 11.500] CKT 1 FREMONT 115.00-FREMONT2 12.00 : OPEN BRANCH FROM BUS 73062 [FREMONT 115.00] TO BUS 73350 [FREMONT2 11.500] CKT 1 GLENDO 115.00-GLENDO1 6.900 : OPEN BRANCH FROM BUS 73069 [GLENDO 115.00] TO BUS 73351 [GLENDO1 6.9000] CKT 1 GLENDO 115.00-GLENDO2 6.900 : OPEN BRANCH FROM BUS 73069 [GLENDO 115.00] TO BUS 73352 [GLENDO2 6.9000] CKT 1 HORSESHO 115.00-HORSESHO 230.0 : OPEN BRANCH FROM BUS 73086 [HORSESHO 115.00] TO BUS 73535 [HORSESHO 230.00] CKT 1 HORSESHO 115.00-HORSESHO 230.0 : OPEN BRANCH FROM BUS 73086 [HORSESHO 115.00] TO BUS 73535 [HORSESHO 230.00] CKT 2 KORTES 115.00-KORTES1 6.900 : OPEN BRANCH FROM BUS 73099 [KORTES 115.00] TO BUS 73356 [KORTES1 6.9000] CKT 1 KORTES 115.00-KORTES2 6.900 : OPEN BRANCH FROM BUS 73099 [KORTES 115.00] TO BUS 73357 [KORTES2 6.9000] CKT 1 KORTES 115.00-KORTES3 6.900 : OPEN BRANCH FROM BUS 73099 [KORTES 115.00] TO BUS 73358 [KORTES3 6.9000] CKT 1 LAR.RIVR 230.00-LAR.RIVR 345.0 : OPEN BRANCH FROM BUS 73107 [LAR.RIVR 230.00] TO BUS 73108 [LAR.RIVR 345.00] CKT 1


May 2, 2016 | 21

LAR.RIVR 230.00-LAR.RIVR 345.0 : OPEN BRANCH FROM BUS 73107 [LAR.RIVR 230.00] TO BUS 73108 [LAR.RIVR 345.00] CKT 2 LAR.RIVR 230.00-LAR.RIVR 69.00 : OPEN BRANCH FROM BUS 73107 [LAR.RIVR 230.00] TO BUS 73603 [LAR.RIVR 69.000] CKT 1 LAR.RIVR 345.00-MBPP-1 24.00 : OPEN BRANCH FROM BUS 73108 [LAR.RIVR 345.00] TO BUS 73129 [MBPP-1 24.000] CKT 1 LAR.RIVR 345.00-MBPP-2 24.00 : OPEN BRANCH FROM BUS 73108 [LAR.RIVR 345.00] TO BUS 73130 [MBPP-2 24.000] CKT 1 LONGPEAK 115.00-LONGPEAK 230.0 : OPEN BRANCH FROM BUS 73115 [LONGPEAK 115.00] TO BUS 73116 [LONGPEAK 230.00] CKT 1 LONGPEAK 115.00-LONGPEAK 230.0 : OPEN BRANCH FROM BUS 73115 [LONGPEAK 115.00] TO BUS 73116 [LONGPEAK 230.00] CKT 2 POLEHILL 115.00-POLEHILL 13.80 : OPEN BRANCH FROM BUS 73155 [POLEHILL 115.00] TO BUS 73324 [POLEHILL 13.800] CKT 1 SEMINOE 115.00-SMNOE1-2 6.900 : OPEN BRANCH FROM BUS 73176 [SEMINOE 115.00] TO BUS 73363 [SEMINOE1-2 6.9000] CKT 1 SEMINOE 115.00-SEMINOE3 6.900 : OPEN BRANCH FROM BUS 73176 [SEMINOE 115.00] TO BUS 73441 [SEMINOE3 6.9000] CKT 1 TIMBERLN 115.00-TIMBERLN 230.0 : OPEN BRANCH FROM BUS 73198 [TIMBERLN 115.00] TO BUS 73199 [TIMBERLN 230.00] CKT 3 TIMBERLN 115.00-TIMBERLN 230.0 : OPEN BRANCH FROM BUS 73198 [TIMBERLN 115.00] TO BUS 73199 [TIMBERLN 230.00] CKT 4 WELD LM 115.00-WELD LM 230.0 : OPEN BRANCH FROM BUS 73211 [WELD LM 115.00] TO BUS 73212 [WELD LM 230.00] CKT 1 MARYLKPP 115.00-MARYLKPP 6.900 : OPEN BRANCH FROM BUS 73231 [MARYLKPP 115.00] TO BUS 73319 [MARYLKPP 6.9000] CKT 1 MARYLKSB 115.00-MARYLKSB 69.00 : OPEN BRANCH FROM BUS 73232 [MARYLKSB 115.00] TO BUS 73436 [MARYLKSB 69.000] CKT 1 LIMESTON 115.00-LIMESTON 34.50 : OPEN BRANCH FROM BUS 73359 [LIMESTON 115.00] TO BUS 73360 [LIMESTON 34.500] CKT 1 WHTROCK 115.00-WHTROCK 34.50 : OPEN BRANCH FROM BUS 73568 [WHTROCK 115.00] TO BUS 73569 [WHTROCK 34.500] CKT 1 CHEY_S 115.00-TERRY_RANCH 230 : OPEN BRANCH FROM BUS 74037 [CHEY_S 115.00] TO BUS 73488 [TERRY_RANCH 230.00] CKT 1 2004-G1 34.500-HJWIND 115.0 : OPEN BRANCH FROM BUS 74045 [2004-G1 34.500] TO BUS 74048 [HJWIND 115.00] CKT 1 SSWIND 34.500-HJWIND 115.0 : OPEN BRANCH FROM BUS 74047 [SSWIND 34.500] TO BUS 74048 [HJWIND 115.00] CKT 1 ARCHER 230.00-ARCHER 115.0 : OPEN BRANCH FROM BUS 73009 [ARCHER 230.00] TO BUS 73008 [ARCHER 115.00] TO BUS 73486 [ARH 13.8A 13.800] C ARCHER 230.00-ARCHER 115.0 : OPEN BRANCH FROM BUS 73009 [ARCHER 230.00] TO BUS 73008 [ARCHER 115.00] TO BUS 73487 [ARH 13.8B 13.800] C AULT 230.00-AULT 115.00 #1 : OPEN BRANCH FROM BUS 73011 [AULT 230.00] TO BUS 73552 [AULT 115.00] TO BUS 73550 [AULT 13.800] C SNOWYRNG 230.00-SNOWYRNG 115.0 : OPEN BRANCH FROM BUS 73571 [SNOWYRNG 230.00] TO BUS 73570 [SNOWYRNG 115.00] TO BUS 73622 [SNG_LV A 13.800] C SNOWYRNG 230.00-SNOWYRNG 115.0 : OPEN BRANCH FROM BUS 73571 [SNOWYRNG 230.00] TO BUS 73570 [SNOWYRNG 115.00] TO BUS 73623 [SNG_LV B 13.800] C MIRACLEM 230.00-MIRACLEM 115.0 : OPEN BRANCH FROM BUS 73572 [MIRACLEM 230.00] TO BUS 73137 [MIRACLEM 115.00] TO BUS 73618 [MM_LV A 13.800] C MIRACLEM 230.00-MIRACLEM 115.0 : OPEN BRANCH FROM BUS 73572 [MIRACLEM 230.00] TO BUS 73137 [MIRACLEM 115.00] TO BUS 73619 [MM_LV B 13.800] C CHEYENNE 230.00-CHEYENNE 115.0 : OPEN BRANCH FROM BUS 73043 [CHEYENNE 115.00] TO BUS 73536 [CHEYENNE 230.00] TO BUS 73645 [CH 13.8A 13.800] C CHEYENNE 230.00-CHEYENNE 115.0 : OPEN BRANCH FROM BUS 73043 [CHEYENNE 115.00] TO BUS 73536 [CHEYENNE 230.00] TO BUS 73545 [CH 13.8B 13.800] C PONNEQUI 26.100 W1 : REMOVE UNIT W1 FROM BUS 70503 [PONNEQUI 26.100] MBPP-1 24.000 1 : REMOVE UNIT 1 FROM BUS 73129 [MBPP-1 24.000] MBPP-2 24.000 1 : REMOVE UNIT 1 FROM BUS 73130 [MBPP-2 24.000] POLEHILL 13.800 1 : REMOVE UNIT 1 FROM BUS 73324 [POLEHILL 13.800] ALCOVA1 6.6000 1 : REMOVE UNIT 1 FROM BUS 73332 [ALCOVA1 6.9000] FREMONT1 12.000 1 : REMOVE UNIT 1 FROM BUS 73349 [FREMONT1 11.500] FREMONT2 12.000 1 : REMOVE UNIT 1 FROM BUS 73350 [FREMONT2 11.500] GLENDO1 6.9000 1 : REMOVE UNIT 1 FROM BUS 73351 [GLENDO1 6.9000] GLENDO2 6.9000 1 : REMOVE UNIT 1 FROM BUS 73352 [GLENDO2 6.9000] GUERNSY1 2.4000 1 : REMOVE UNIT 1 FROM BUS 73353 [GUERNSY1 2.4000] KORTES1 6.9000 1 : REMOVE UNIT 1 FROM BUS 73356 [KORTES1 6.9000]


May 2, 2016 | 22

KORTES2 6.9000 1 : REMOVE UNIT 1 FROM BUS 73357 [KORTES2 6.9000] KORTES3 6.9000 1 : REMOVE UNIT 1 FROM BUS 73358 [KORTES3 6.9000] SMNOE1-2 6.9000 1 : REMOVE UNIT 1 FROM BUS 73363 [SEMINOE1-2 6.9000] SMNOE1-2 6.9000 2 : REMOVE UNIT 2 FROM BUS 73363 [SEMINOE1-2 6.9000] ALCOVA2 6.6000 1 : REMOVE UNIT 1 FROM BUS 73438 [ALCOVA2 6.9000] SEMINOE3 6.9000 1 : REMOVE UNIT 1 FROM BUS 73441 [SEMINOE3 6.9000] GUERNSY2 2.4000 2 : REMOVE UNIT 2 FROM BUS 73444 [GUERNSY2 2.4000] FLATIRN1 13.800 2 : REMOVE UNIT 2 FROM BUS 73448 [FLATIRN1 13.800] FLATIRN2 13.800 1 : REMOVE UNIT 1 FROM BUS 73449 [FLATIRN2 13.800] FLATIRN2 13.800 3 : REMOVE UNIT 3 FROM BUS 73449 [FLATIRN2 13.800] CLR_1 0.6000 1 : REMOVE UNIT 1 FROM BUS 74042 [CLR_1 0.6000] SS_GEN1 0.6000 1 : REMOVE UNIT 1 FROM BUS 74043 [SS_GEN1 0.6000] G7_GEN1 0.6000 G1 : REMOVE UNIT G1 FROM BUS 74066 [G7WNDLO 0.7000] CHEY-TR+CHEY-OWL DBLCKT : OPEN BRANCH FROM BUS 73536 [CHEYENNE 230.00] TO BUS 73488 [TERRY_RANCH 230.00] CKT 1 : OPEN LINE FROM BUS 73504 [PONNEQUI 115.00] TO BUS 73597 [OWL_CRK 115.00] CKT 1 : OPEN LINE FROM BUS 73504 [PONNEQUI 115.00] TO BUS 70503 [PONNEQUI 26.100] CKT U1 : OPEN LINE FROM BUS 73504 [PONNEQUI 115.00] TO BUS 73043 [CHEYENNE 115.00] CKT 1 CH-HJ+CH-SNOWY DBLCKT : OPEN BRANCH FROM BUS 73536 [CHEYENNE 230.00] TO BUS 73488 [TERRY_RANCH 230.00] CKT 1 : OPEN BRANCH FROM BUS 73536 [CHEYENNE 230.00] TO BUS 73571 [SNOWYRNG 230.00] CKT 1 SCHEY-LGIRG7 115 DBLCKT : OPEN LINE FROM BUS 73348 [CORLETT 115.00] TO BUS 74037 [CHEY_S 115.00] CKT 1 : OPEN LINE FROM BUS 73348 [CORLETT 115.00] TO BUS 74039 [NORTHRNG 115.00] CKT 1 : OPEN LINE FROM BUS 74040 [SWANRNCH 115.00] TO BUS 74067 [G7WNDHI 115.00] CKT 1 : OPEN LINE FROM BUS 74040 [SWANRNCH 115.00] TO BUS 74037 [CHEY_S 115.00] CKT 1 KINGRNCH-LGIRG7 115 DBLCKT : OPEN LINE FROM BUS 73348 [CORLETT 115.00] TO BUS 74037 [CHEY_S 115.00] CKT 1 : OPEN LINE FROM BUS 73348 [CORLETT 115.00] TO BUS 74039 [NORTHRNG 115.00] CKT 1 : OPEN BRANCH FROM BUS 74056 [KING RANCH 115.00] TO BUS 74067 [G7WNDHI 115.00] CKT 1 LRS-WCHILD-KEOTA 345 : OPEN BRANCH FROM BUS 73108 [LAR.RIVR 345.00] TO BUS 72811 [WL_CHILD 345.00] CKT 1 : OPEN BRANCH FROM BUS 72811 [WL_CHILD 345.00] TO BUS 72140 [KEOTA 345.00] CKT 1 ARCH-CHEY N&S 115 : OPEN BRANCH FROM BUS 73008 [ARCHER 115.00] TO BUS 73043 [CHEYENNE 115.00] CKT 1 : OPEN LINE FROM BUS 73480 [CROWCRK 115.00] TO BUS 73008 [ARCHER 115.00] CKT 1 : OPEN LINE FROM BUS 73480 [CROWCRK 115.00] TO BUS 73043 [CHEYENNE 115.00] CKT 1 LGIR-G7 : OPEN LINE FROM BUS 74066 [G7WNDLO 0.7000] TO BUS 74069 [G7WNDMI 34.500] CKT WD : OPEN LINE FROM BUS 74069 [G7WNDMI 34.500] TO BUS 74068 [G7WNDMID 34.500] CKT 1 : OPEN LINE FROM BUS 74068 [G7WNDMID 34.500] TO BUS 74067 [G7WNDHI 115.00] CKT WD : OPEN LINE FROM BUS 74067 [G7WNDHI 115.00] TO BUS 74040 [SWANRNCH 115.00] CKT 1 : OPEN LINE FROM BUS 74067 [G7WNDHI 115.00] TO BUS 74056 [KING RANCH 115.00] CKT 1 CPGSTN_1 : OPEN LINE FROM BUS 74061 [CPGSTN_1 13.800] TO BUS 74060 [CPGSTN 115.00] CKT U1 CPGSTN_2 : OPEN LINE FROM BUS 74062 [CPGSTN_2 13.800] TO BUS 74060 [CPGSTN 115.00] CKT U1


May 2, 2016 | 23

CLPTG7-2023 File only ============================================================================= CONTINGENCY LEGEND: <----- CONTINGENCY LABEL ------> EVENTS CPGSTN_3 : OPEN LINE FROM BUS 74063 [CPGSTN_3 13.800] TO BUS 74060 [CPGSTN 115.00] CKT U1 CHEY_S 115.00-CPGSTN 115.0 : OPEN BRANCH FROM BUS 74037 [CHEY_S 115.00] TO BUS 74060 [CPGSTN 115.00] CKT 1 CHEY_S 115.00-CPGSTN 115.0 : OPEN BRANCH FROM BUS 74037 [CHEY_S 115.00] TO BUS 74060 [CPGSTN 115.00] CKT 2 WCHILD 345.00-WCHILD 230.0 : OPEN BRANCH FROM BUS 72811 [WL_CHILD 345.00] TO BUS 72818 [WL_CHILD 230.00] CKT 1 KINGRNCH-NTHRNGE 115 DBLCKT : OPEN BRANCH FROM BUS 74039 [NORTHRNG 115.00] TO BUS 74056 [KING RANCH 115.00] CKT 1 : OPEN BRANCH FROM BUS 74039 [NORTHRNG 115.00] TO BUS 74056 [KING RANCH 115.00] CKT 2 CPGSTN-SCHEY 115 DBLCKT : OPEN BRANCH FROM BUS 74060 [CPGSTN 115.00] TO BUS 74037 [CHEY_S 115.00] CKT 1 : OPEN BRANCH FROM BUS 74060 [CPGSTN 115.00] TO BUS 74037 [CHEY_S 115.00] CKT 2 CPGSTN TIES 115 : OPEN BRANCH FROM BUS 74060 [CPGSTN 115.00] TO BUS 74041 [EB PARK 115.00] CKT 1 : OPEN BRANCH FROM BUS 74060 [CPGSTN 115.00] TO BUS 73008 [ARCHER 115.00] CKT 1 : OPEN LINE FROM BUS 74060 [CPGSTN 115.00] TO BUS 74061 [CPGSTN_1 13.800] CKT U1 : OPEN LINE FROM BUS 74060 [CPGSTN 115.00] TO BUS 74062 [CPGSTN_2 13.800] CKT U1 : OPEN LINE FROM BUS 74060 [CPGSTN 115.00] TO BUS 74063 [CPGSTN_3 13.800] CKT U1 : OPEN LINE FROM BUS 74060 [CPGSTN 115.00] TO BUS 74037 [CHEY_S 115.00] CKT 1 : OPEN LINE FROM BUS 74060 [CPGSTN 115.00] TO BUS 74037 [CHEY_S 115.00] CKT 2


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Appendix C: Short Circuit Analysis Data Fault Impedance Calculations (in per unit, 100 MVA Base)

Faults prior to G7 Addition R1 jX1 R0 jX0 Swan Ranch 0.00779 0.51340 0.01971 0.10411 South Cheyenne 0.00270 0.28020 0.00176 0.02156 King Ranch 0.00519 0.03655 0.01233 0.06729 North Range 0.00480 0.03478 0.01104 0.05845 Corlett 0.00611 0.04050 0.01573 0.07611

Faults after G7 Addition R1 jX1 R0 jX0 Swan Ranch 0.00747 0.04843 0.01976 0.10425 South Cheyenne 0.00267 0.02694 0.00176 0.02516 King Ranch 0.00488 0.03392 0.01238 0.06741 North Range 0.00455 0.03242 0.01107 0.05854 Corlett 0.00593 0.03846 0.01576 0.07619

Sensitivity: Faults after G7 and G6 Addition R1 jX1 R0 jX0 Swan Ranch 0.00734 0.04738 0.01977 0.10379 South Cheyenne 0.00252 0.02572 0.00173 0.02059 King Ranch 0.00477 0.03294 0.01238 0.06710 North Range 0.00443 0.03144 0.01107 0.05824 Corlett 0.00581 0.03743 0.01576 0.07580

Calculated Fault Current Faults prior to G7 Addition

Bus Voltage

(kV) 3LG

(Amps) 2LG

(Amps) 1LG

(Amps) LL

(Amps)

Swan Ranch 115 9,668 5,723 7,168 8,346

South Cheyenne 115 17,833 21,166 19,242 15,352

King Ranch 115 13,598 8,699 10,567 11,727

North Range 115 14,299 9,810 11,588 12,329

Corlett 115 12,257 7,694 9,420 10,574


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Faults after G7 Addition

Bus Voltage

(kV) 3LG

(Amps) 2LG

(Amps) 1LG

(Amps) LL

(Amps)

Swan Ranch 115 10,244 5,779 7,370 8,847

South Cheyenne 115 18,543 21,485 19,794 15,968

King Ranch 115 14,651 8,818 10,969 12,640

North Range 115 15,336 9,949 12,022 13,228 Corlett 115 12,902 7,766 9,664 11,134

Sensitivity: Faults after G7 and G6 Addition

Bus Voltage

(kV) 3LG

(Amps) 2LG

(Amps) 1LG

(Amps) LL

(Amps)

Swan Ranch 115 10,471 5,821 7,466 9,048

South Cheyenne 115 19,425 22,484 20,748 16,746

King Ranch 115 15,085 8,896 11,159 13,024

North Range 115 15,814 10,048 12,250 13,651

Corlett 115 13,256 7,835 9,823 11,447


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Appendix D: Cheyenne West Substation Layout

Documents

Cheyenne Light, Fuel and Power Transmission Feasibility Study · Cheyenne Light, Fuel and Power Transmission Feasibility Study CLPT-G7 102 MW Wind Plant near the Corlett 115 kV Substation