TRANSMISSION LINE & SUBSTATION PROJECTS COMPANY: … · o Install 3 CVT pedestals (E towers) **Double check with AP upon location of CVTs. o Install fifteen 115kV porcelain station

TRANSMISSION LINE & SUBSTATION PROJECTS

COMPANY: ENTERGY SERVICES INC.

CUSTOMER: ENTERGY SERVICES (EMO)

FACILITIES STUDY

EJO # F4PPAR0448

ICTT-2008-029

TRANSMISSION SERVICE FACILITY STUDY

OASIS 1552146

Revision: 1

Rev Issue Date Description of Revision Prepared By Approved By

A 07/21/08 Draft Template GWR

B 7/22/08 Input Arkansas Information FWM

C 7/24/08 For TPD Review GDS

0 7/24/08 Draft to ICT GDS CWN

1 8/4/08 ICT Determines Upgrade Classification ETB JDH

OASIS 1552146 Facilities Study

TABLE OF CONTENTS

1. PROJECT SUMMARY..............................................................................3

1.1. Background and Project Need............................................................................... 3 1.2. Scope Summary.................................................................................................... 3

A. Southwest Arkansas/Northwest Louisiana Reliability Improvement project (Sarepta project): .................................................................................................. 3

B. Install a 21.6MVAR capacitor bank at Couch 115kV substation................... 3

1.3. Cost Summary....................................................................................................... 3 1.4. Schedule Summary ............................................................................................... 3

2. SAFETY AWARENESS............................................................................4

3. GENERAL ASSUMPTIONS......................................................................4

4. SCOPE OF WORK....................................................................................4

4.1 Southwest Arkansas/Northwest Louisiana Reliability Improvement project (Sarepta project) .................................................................................................................. 4 A. Construct a 345/115kV tie at Sarepta 115kV substation .............................. 4

B. Install a 21.6MVar capacitor bank at Emerson 115kV.................................. 6

C. Install a 32.4MVar capacitor bank at Lucky 115kV....................................... 7

D. Install a 32.4MVar capacitor bank at Vienna 115kV ..................................... 8

4.2 Install a 21.6MVAR capacitor bank at Couch 115kV substation............................... 8

5. COST .......................................................................................................10

6. SCHEDULE .............................................................................................10

7. RISK ASSESSMENT...............................................................................11

8. CONFIRMED RESERVATIONS ..............................................................12

9. STUDY QUEUE .......................................................................................16

10. ATTACHMENTS....................................................................................17

A. Table of Acronyms.......................................................................................... 17

B. Scope Summary Diagram / Area Map ............................................................ 18

C. One Line Drawings ......................................................................................... 19

D. Duration Schedule .......................................................................................... 27

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OASIS 1552146 Facilities Study 1. PROJECT SUMMARY

1.1. Background and Project Need

The purpose of this Facilities Study is to determine the availability of un-designation of 161MW of network transmission service transfer on Entergy’s transmission system as requested by Entergy Services (EMO). The time period for this transfer is from 1/1/2009 until 1/1/2014. This study was performed on the latest available 2012 summer peak model using PSS/E and MUST software by Power Technologies Incorporated (PTI). The facilities study identifies any transmission constraints resulting from the requested power transfer. The facilities study also includes cost estimates to correct any transmission constraints. Under Entergy’s Independent Coordinator of Transmission which became effective on November 17, 2006, Entergy will recover these costs based on the Attachment T to Entergy’s OATT. In this Attachment T, the ICT has determined these costs to be classified as Base Plan and Supplemental Upgrades.

1.2. Scope Summary

• The overall scope of this project is summarized as follows:

A. Southwest Arkansas/Northwest Louisiana Reliability Improvement project (Sarepta project):

Construct a 345/115kV tie at Sarepta 115kV substation, install a 21.6MVar capacitor bank at Emerson 115kV, install a 32.4MVar capacitor bank at Lucky 115kV, and install a 32.4MVar capacitor bank at Vienna 115kV.

This project is being developed as a project to be completed by October 2010.

B. Install a 21.6MVAR capacitor bank at Couch 115kV substation

A 21.6MVAR capacitor bank at Couch 115kV is needed for voltage support.

1.3. Cost Summary

• The estimated Total project cost is $25,692,000 Full Financial. This does not include Tax Gross Up which may apply.

• The ICT has assigned $24,480,000 as Base Plan Upgrades and $1,212,000 as Supplemental Upgrades based on Attachment T of Entergy’s OATT.

1.4. Schedule Summary

• Overall ISD for the entire project is October 6, 2010.

o The above ISD is based upon commencing the detailed definition phase work for Couch in November of 2008, from that point moving forward into design work. Sarepta project is already in progress and cannot be accelerated due to the long lead time of the 500MVA autotransformer (approx. 18 mths.)

o It was assumed that construction could only be done in off peak times.

o It was assumed that no special permits would be required.

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2. SAFETY AWARENESS

Safety is a priority with Entergy. Safety will be designed into substations and lines. The designs will be done with the utmost safety for personnel in mind for construction, operation, and maintenance of the equipment. All employees working directly or indirectly for Entergy shall adhere to all rules and regulations outlined within the Entergy Safety manual. Entergy requires safety to be the highest priority for all projects. All Entergy and Contract employees must follow all applicable safe work procedures. Should the work contained within this Facility Study be approved, a detailed Safety Plan will be formulated and incorporated within the project plan.

3. GENERAL ASSUMPTIONS

• Upon receipt of formal approval from customer authorizing design and construction, Entergy will prepare a detailed project execution plan and proceed with project execution.

• No special construction equipment was included in the base cost of the project. • No alternative design approaches were pursued in this study. • All permits will be attainable in a reasonable period. • Due to timing and/or funding constraints, site visits, surveys, and soil borings were not

performed in order to develop this facility study. • All costs above represent good faith estimates in today’s dollars. Price escalation has not been

included. 4. SCOPE OF WORK

4.1 Southwest Arkansas/Northwest Louisiana Reliability Improvement project (Sarepta project)

A. Construct a 345/115kV tie at Sarepta 115kV substation

• General: Build a 345kV substation with a 345/115kV auto transformer at Sarepta Substation to connect the 345kv line near the substation to the existing 115kv substation. Entergy owns a considerable amount of property around the Sarepta Substation therefore no additional property acquisitions will be necessary. A new line bay will be installed at Sarepta 115kV. Additional relay upgrades are required at El Dorado and Longwood (SWEPCO) substations due to the installation of the new 345kV substation. These costs are included in the total cost of this project.

• Site: o Compact approximately 20,000 cubic yards of fill. o Excavate and grade 25,000 cubic yards. o Install 12,000 tons of limestone. o Install 3,220 ft. of roadway. o Install 2200 ft. of 7’ high fence. o Install 20 catch basins and 3500 ft. of 18” culvert.

• Foundations: o 1 each 345/115kv three phase autotransformer foundation with oil containment. o 3 each 345kV Breaker foundations. o 10 each 345kv Switch foundations. o 1 each 115kv AX2E deadend structure foundation. o 1 each 115kV ‘C’ tower foundation. o 81 each 345kV bus support foundations. o 9 each 345kV CCVT/CT foundations. o 9 each arrester support foundations.

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OASIS 1552146 Facilities Study o 4 each line trap support foundations. o 9 each static mast foundations (lightning protection) o 1 control house foundation (20’ X 50’) o Install 3,000ft of 2” conduit

• Electrical: The following equipment will be installed: o 1 each 3 phase 345/115 kV, 500 MVA, 345kV Autotransformer o 3 each 345kV 2000A 40kA gas circuit breakers o 10 each 345kV 2000A vertical break motor operated switches o 7 each CCVTs o 3 each CTs o 9 each arresters o 4 each line traps o 243 each 345kV high strength post insulators o 81 each bus supports o 9 static mast (lightning protection) o 1 each 115kV AX2E deadend structure o 1 each 115kV 3000A vertical break motor operated switch o 18 each 115kV station post insulators o 5500 ft of rigid bus o 1 each control house (20’ X 50’)

• Relay: o Two indoor transformer differential panels o Four line panels, 4 SEL 421’s (2 each looking at Longwood and El Dorado) o Three breaker control panels o One AC stand-alone panel o Two DC stand-alone panels o One station service AC panel o Indoor meter panel o One Harris RTU D20 unit o Voice and Data circuits (coordinate with Telecom) o Two 125VDC 150 amp-hour battery sets o Two 25amp chargers, two battery racks, and (2) 100A battery test switches o (2) 3 phase and (1) single phase CCVT junction boxes o One metering CT junction box o Two high voltage alarm junction boxes o Automatic Transfer Switch o Communication junction boxes (substation interface & control house interface) o (2) (MOS-6) line switching control panels o Miscellaneous communication equipment o One DC inverter and one DC transducer o 4 line traps (2 per line) o 4 line tuners o 3 CT’s – metering accuracy o 7 CCVT’s – metering accuracy o One DFR with expansion capability to a DDR if possible

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• Relay Settings: Settings will be revised as necessary upon completion of the new 345kV substation.

• Communications and SCADA: o Entergy will require one phone line (POTS) for general service use connected to a port

switcher. o Entergy will require one RTU Data Circuit to the SOC. o Entergy will require one RTU Data Circuit to the TOC. o AEP/SWEPCO will require one RTU Data Circuit to their SOC. SCADA Data:

Item/Description Quantity Add Remove Automatic transfer switch

1 X

Motor Operated Switches

11 X

Battery Chargers 2 X 345kV Breakers 3 X RTU 1 X Relays 12 X Auto Transformer 1 X 345kv Switches 10 X 115kv Switches 1 X

• Metering: A set of extended range high accuracy metering CT’s will be installed. The CT’s are

0.15% accurate from 0.5A to 4000A.

• Task Specific Assumptions:

B. Install a 21.6MVar capacitor bank at Emerson 115kV

• General: A 32.4 MVAR capacitor bank (fuseless, ungrounded wye) will be installed at Emersion Substation in EAI. The capacitor bank will be installed on the Sarepta/Hayesville line side of breaker B0634.

• Site: The capacitor bank will be situated on the SE corner of the substation. The existing east fence will have to be relocated to the east. This will require removal of approximately 180 ft. of fence and the subsequent addition of approximately 350 ft. of fence.

• Foundations: o Install two “CE” tower drilled-pier foundations (for circuit switcher and disconnect switch). o Install one 21.6MVAR capacitor bank drilled-pier foundation. o Install six lally (bus support) column drilled-pier foundations. o Install three CVT pedestal drilled-pier foundations. o Install perimeter ground around fence (725’ of 4/o copper conductor). o Install 200 ft. of 4/o copper conductor to connect new construction to existing ground grid

as per Entergy grounding standard. o Install 1,500 ft. of 2” conduit.

• Electrical: o Install one 21.6MVAR capacitor bank, fuseless, 115kV, ungrounded wye with one line trap

on A phase. Provide racks for possible future expansion to 32MVAR. o Install two “CE” towers 16 ft.

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OASIS 1552146 Facilities Study o Install one 115kV, 2000A, 125VDC, circuit switcher with enhanced pre-insertion inductors

and ground blade attachments. o Install one 2000A center side break gang operated air break switch between the circuit

switcher and operating bus. o Install six lally (bus support) columns. o Install 3 CVT pedestals (E towers) **Double check with AP upon location of CVTs. o Install fifteen 115kV porcelain station post insulators. o Install 175 ft. 2 ½ inch rigid aluminum bus.

• Relay: o Purchase, design and install ungrounded capacitor bank control panel. o Purchase, design and install an S&C 69 kV phase to ground resistive potential device. o Purchase and install one 115kV, 400A Single Frequency Line Trap. o Purchase, design and install a Satec panel meter for the station metering of transformer

#1. o Purchase, design and install a GE Harris D20 RTU.

• Relay Settings: o Relay settings will be required for the Sel-451 Protection and Control Relay. o The D20 RTU will require a configuration package.

C. Install a 32.4MVar capacitor bank at Lucky 115kV

• General: A 32.4 MVAR capacitor bank (fuse-less, ungrounded wye) will be installed at Lucky Substation in ELI. The capacitor bank will be installed on the 115 kV bus on the west side of the Transformer #X141 bay.

• Site: o Compact approximately 3500 cubic yards of fill (+/- 30% estimate to be firmed up with site

survey). o Install 150 tons of limestone throughout the new addition o Remove 217 ft. of existing fence o Install 250 ft of new 7’ fence.

• Foundations: o One 32.4 MVAR Capacitor Bank drilled pier foundation o Four equipment pedestal drilled pier foundation (one for Capacitor Bank neutral PT) o One 115 kV/ 1200A CapSwitcher drilled pier foundation o One ‘C’ tower drilled pier foundation o Two 115 kV 3-phase bus support drilled pier foundations o One 75’ static mast foundation o Approximately 30’ of pre-cast cable trough o 800’ of buried 2” PVC conduit o 650’ of 4/0 copper conductor (Copper-clad conductor may be substituted)

• Electrical: o One 115kV/32.4 MVAR ungrounded, fuse-less capacitor bank with Line Trap o One 69 kV PT (Capacitor Bank neutral) o One 121 kV / 1200A CapSwitcher o One 115 kV / 1200A vertical break disconnect switch o Three 115 kV CCVTs o One 75’ static mast o 250’ of 2½” sch. 80 aluminum pipe bus (match existing)

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• Relay: o Split AC/DC panel o Cap bank panel using SEL 451 relay. o RTU upgraded with ME II motherboard o 3 - 115kV CCVTs o 1 – CCVT junction box. o 1 – 69kV CCVT connected to the neutral of the cap bank. o 1- CCVT box for the neutral CCVT. o 1 – line trap for the coupled phase of the Hodge to Sailes line.

D. Install a 32.4MVar capacitor bank at Vienna 115kV • General: A 32.4 MVAR capacitor bank (fuse-less, ungrounded wye) will be installed on the

operating bus at Vienna Substation in ELI. • Site: None. • Foundations:

o One 32.4 MVAR Capacitor Bank drilled pier foundation o One equipment pedestal drilled pier foundation (for Capacitor Bank neutral PT) o One 115 kV/ 1200A CapSwitcher drilled pier foundation o One 75’ static mast foundation o 500’ of buried 2” PVC conduit

• Electrical: o One 115kV/32.4 MVAR ungrounded, fuse-less capacitor bank with Line Trap o One 69 kV PT (Capacitor Bank neutral) o One 121 kV / 1200A CapSwitcher (w/modified cabinet height) o One 115 kV / 1200A vertical break disconnect switch o One 75’ static mast o 100’ of 2½” aluminum pipe bus

• Relay: o Cap bank panel using the SEL 451 relay o RTU upgraded with ME II motherboard o Install (1) KI card and (1) S card o 1 – 69kV CCVT connected to the neutral of the cap bank. o 1- CCVT box for the neutral CCVT. o 1 – line trap for the A phase.

4.2 Install a 21.6MVAR capacitor bank at Couch 115kV substation

• General: Install a 21.6MVAR Capacitor Bank on the north bus at the Couch SES switch yard. • Site:

o Remove 120lf of fence on the north side of the yard o Install 280lf fence with one gate o Develop additional area for cap bank and control house addition.

• Foundations:. o Install one 21.6 MVAR Capacitor Bank foundation o Install three bus support foundations o Install three CVT structure support foundations

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o Install one switch support foundation o Install one 115 kV/ 1200A CapSwitcher foundation o Install one control house foundation

• Electrical:. o One 115kV/21.6 MVAR ungrounded, fuse-less capacitor bank o One 69 kV PT (Capacitor Bank neutral) o One 123 kV / 1200A CapSwitcher o One 115 kV / 2000A motor operated vertical break disconnect switch o One 16’x24’ control house o One Switch support structure o Three CVT support structures o Three single phase bus support structures o All necessary insulators, rigid bus and strung bus

• Relay: o Install Cap bank panel using the SEL 451 relay o Install D25 RTU o Install AC/DC split panel o Install Station service A/C o Install Telephone o Install three CCVT’s and junction box o Install one S&C resistive potential device w/ junction box o Install batteries and charger o Install all necessary control cables.

• Relay Settings: o Settings and RTU configurations will be required

• Communications and SCADA: o N/A

• Metering: o N/A

• Task Specific Assumptions:

OASIS 1552146 Facilities Study 5. COST

The ICT has reviewed and determined that each required upgrade will be considered a Supplemental Upgrade. For more information on cost responsibility for Base Plan and Supplemental Upgrades, see Attachment T to Entergy’s OATT. The costs shown in the table include overheads and AFUDC, but do not include tax gross up. Entergy incurs a tax liability proportional to the amount of customer contributions. In addition to proposed project costs, the customer may be charged a “Tax gross-up” at applicable rates. Rates are subject to change. Current rate for EAI is 32.693% and is not included in any of the estimates.

Projected Costs

Project TOTAL Base Case Supplemental Notes Sarepta 345kV Substation $24,480,000 Couch SES Substation $1,212,000

TOTAL OF ABOVE $25,692,000

ICT Cost Analysis

Project TOTAL Base Case Supplemental Notes Sarepta 345kV Substation $24,480,000 $24,480,000 SW AR/NW LA Reliability Improvements (formerly Sarepta project)

Couch SES Substation $1,212,000 $1,212,000 TOTAL OF ABOVE $25,692,000 $24,480,000 $1,212,000

6. SCHEDULE

A detailed schedule will be prepared subsequent to customer approval to proceed with the project. Based on the Work Order duration schedules listed below, the overall project in-service date is projected to be 2/17/2011. The following are rough durations:

WO Name / Number Proposed Start Date Proposed ISD

Sarepta 345kV Substation 2/7/2008 10/6/2010

Couch SES Sub: Install Cap Bank 11/3/2008 3/1/2010

Notes to Duration Schedules: • All construction work requiring outages will be performed during off-peak load season. Line

outages will be discussed with the SOC and TOC and the assumption is made that line outages will be executed as planned. However, last minute denial of outages by the SOC/TOC along with resulting schedule delay is possible.

• Substation construction will be completed during transmission line outages. • Construction resources are available when required. • Transmission Line and Substation projects will begin subsequent to Definition phase Project

Execution Plan. • This schedule does not account for adverse weather conditions. • Schedule durations are high level estimates at this time. A detailed schedule will be prepared

upon project approval.

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7. RISK ASSESSMENT

Risk Comment Impact

Material costs steel & Equipment Rising steel, copper, fuel and other market conditions could greatly affect estimated cost. ****

Lay-down areas Cost to be determined during detailed scoping. *

Weather & Equipment Lead Times

Unexpected delays on material lead times, unusually inclement weather will impact schedule but might impact AFUDC costs as well. **

Outages may not be available

Preliminary schedule only considers general outage constraints. Specific project schedule may be delayed by days, weeks or months dependant on system conditions. Delays of months = increased project costs. **

Higher costs of contractor labor

It is likely that current market conditions will begin affecting the contract labor and equipment costs. ****

Availability of resources

If resources are unavailable, contract resources will be needed to perform Design and / or Construction oversight. *

*-low impact to cost, ** - moderate impact to cost, ***- high impact to cost, **** - very high impact to cost.


8. CONFIRMED RESERVATIONS OASIS PSE MW Begin End 250778 (delisting) Entergy Services, Inc. (EMO) 1 7/2/1998 7/1/2011 392740 Ameren Energy, Inc. 165 4/12/1999 1/1/2009 569011 Entergy Services, Inc. (EMO) 242 3/1/2000 1/1/2014 731017 South Miss Electric Power Assoc 75 1/1/2001 6/1/2009 759196 Entergy Services, Inc. (EMO) 143 1/1/2001 1/1/2021 759294 East Texas Electric Cooperative 31 1/1/2001 1/1/2018 850304 Municipal Energy Agency of Miss 13 5/1/2001 6/1/2010 851493 Municipal Energy Agency of Miss 13 5/1/2001 6/1/2010 1024194 (renewal) City Water & Light, Jonesboro 83 1/1/2003 1/1/2010 1024198 (renewal) City Water & Light, Jonesboro 168 1/1/2003 1/1/2010 1084342 East Texas Electric Cooperative 50 1/1/2005 1/1/2009 1084344 East Texas Electric Cooperative 50 1/1/2005 1/1/2009 1084345 East Texas Electric Cooperative 75 1/1/2005 1/1/2009 1096986 Tennessee Valley Authority 73 9/1/2003 9/1/2013 1099991 (renewal) City Water & Light, Jonesboro 83 1/1/2010 1/1/2016 1099997 (renewal) City Water & Light, Jonesboro 168 1/1/2010 1/1/2016 1105665 Entergy Services, Inc. (EMO) 236 2/1/2003 2/1/2016 1105666 Entergy Services, Inc. (EMO) 91 2/1/2003 2/1/2027 1105668 Entergy Services, Inc. (EMO) 77 2/1/2003 2/1/2027 1126821 Entergy Services, Inc. (EMO) 101 5/1/2004 5/1/2029 1151106 Entergy Services, Inc. (EMO) 20 6/1/2010 6/1/2029 1161925 CLECO Power LLC (Gen) 12 8/1/2003 1/1/2010 1161927 CLECO Power LLC (Gen) 7 8/1/2003 1/1/2010 1161928 CLECO Power LLC (Gen) 7 8/1/2003 1/1/2010 1168061 Entergy Services, Inc. (EMO) 80 8/1/2004 2/1/2028 1168408 Entergy Services, Inc. (EMO) 247 8/1/2004 2/1/2028 1202470 NRG Power Marketing 91 4/1/2004 4/1/2009 1286481 Merrill Lynch Commodities 11 1/1/2000 1/1/2010 1289686 (delisting) Entergy Services, Inc. (EMO) 1 6/1/2007 6/1/2030 1294132 Entergy Services, Inc. (EMO) 526 1/1/2006 1/1/2035 1309874 (renewal) East Texas Electric Cooperative 75 1/1/2009 1/1/2017 1309875 (renewal) East Texas Electric Cooperative 50 1/1/2009 1/1/2017 1309876 (renewal) East Texas Electric Cooperative 50 1/1/2009 1/1/2017

1310448 (1284799) (delisting) Entergy Services, Inc. (EMO) 1 6/1/2007 6/1/2030

1328125 CLECO Power Marketing 35 1/1/2006 1/1/2011 1340017 Plump Point Energy Associates 40 3/1/2010 3/1/2040 1340019 Plump Point Energy Associates 35 3/1/2010 3/1/2040 1340665 Entergy Services, Inc. (EMO) 200 1/1/2006 1/1/2009 1340673 Entergy Services, Inc. (EMO) 50 6/1/2007 6/1/2008 1346435 Entergy Services, Inc. (EMO) 100 6/1/2007 6/1/2008 1346437 Entergy Services, Inc. (EMO) 100 6/1/2008 6/1/2009 1346440 Entergy Services, Inc. (EMO) 200 6/1/2007 6/1/2008 1346444 Entergy Services, Inc. (EMO) 179 2/1/2007 2/1/2008 1348508 CLECO Power Marketing 10 1/1/2006 1/1/2010 1352704 (1340032) Plump Point Energy Associates 5 3/1/2010 3/1/2040 1356328 Municipal Energy Agency of Miss 40 6/1/2010 6/1/2040

12


OASIS PSE MW Begin End 1373643 City of Conway 25 3/1/2010 3/1/2040 1375299 Louisiana Generating LLC 11 3/1/2006 3/1/2013 1375300 Louisiana Generating LLC 8 3/1/2006 3/1/2011 1375301 Louisiana Generating LLC 5 3/1/2006 3/1/2011 1375559 CLECO Power LLC (Gen) 675 12/1/2006 12/1/2016 1380484 Osceola Light & Power 9 9/1/2009 9/1/2039 1381398 Constellation Energy Group 34 1/1/2006 1/1/2036 1381400 Constellation Energy Group 34 1/1/2006 1/1/2036 1381404 Constellation Energy Group 17 1/1/2006 1/1/2036 1381406 (1325187) Constellation Energy Group 17 1/1/2006 1/1/2036 1383852 Arkansas Electric Cooperative Corp. 550 1/1/2007 1/1/2017 1385158 NRG Power Marketing 13 10/1/2007 10/1/2027 1385835 (1363730) City of Prescott 22 4/1/2006 4/1/2009 1387272 CLECO Power LLC (Gen) 11 4/1/2006 4/1/2016 1389008 NRG Power Marketing 270 6/1/2007 6/1/2008

1389848 (renewal) Louisiana Energy & Power Authority 6 2/1/2007 2/1/2008 1393874 NRG Power Marketing 5 9/1/2006 9/1/2009 1401985 Constellation Energy Group 42 8/1/2006 8/1/2036 1406786 South Miss Electric Power Assoc 100 4/1/2010 4/1/2040

1407894 (renewal) Morgan Stanley Commodities Group 102 1/1/2008 1/1/2009

1407895 (renewal) Morgan Stanley Commodities Group 102 1/1/2008 1/1/2009 1408199 South Miss Electric Power Assoc 100 4/1/2010 4/1/2040 1408981 NRG Power Marketing 92 1/1/2007 1/1/2010 1410022 (1340037) Constellation Energy Group 60 3/1/2010 3/1/2040 1422708 (delisting) Entergy Services, Inc. (EMO) 1 1/1/2007 1/1/2027 1425495 East Texas Electric Cooperative 50 3/1/2010 3/1/2045 1431165 Cargill Power Markets, LLC 103 1/1/2008 1/1/2009 1435972 Entergy Services, Inc. (EMO) 150 5/1/2007 5/1/2010 1435973 Entergy Services, Inc. (EMO) 135 5/1/2008 5/1/2010

1437089 Arkansas Electric Cooperative Corp. 72 / 349 1/1/2007 1/1/2012


1440190 Arkansas Electric Cooperative Corp. 104 1/1/2008 1/1/2012 1440358 (renewal) NRG Power Marketing 100 3/1/2007 3/1/2008 1442295 (renewal) NRG Power Marketing 3 7/1/2007 7/1/2009 1442296 (renewal) NRG Power Marketing 103 1/1/2008 1/1/2011 1442453 NRG Power Marketing 320 6/1/2007 6/1/2026 1448044 Entergy Services, Inc. (EMO) 3 1/1/2007 9/21/2009 1448054 NRG Power Marketing 103 1/1/2008 1/1/2009 1448057 NRG Power Marketing 103 1/1/2008 1/1/2009 1448418 (renewal) MidAmerican Energy, Inc. 100 3/1/2007 3/1/2008 1449494 Entergy Services, Inc. (EMO) 154 6/1/2007 6/1/2009 1449495 Entergy Services, Inc. (EMO) 322 6/1/2009 6/1/2059 1449881 Cargill Power Markets, LLC 103 1/1/2008 1/1/2009

13


OASIS PSE MW Begin End 1450222 American Electric Power 225 1/1/2008 1/1/2010 1452307 (renewal) NRG Power Marketing 100 1/1/2008 1/1/2009 1452308 NRG Power Marketing 100 1/1/2008 1/1/2009 1452603 NRG Power Marketing 100 9/1/2007 9/1/2008 1453402 NRG Power Marketing 40 1/1/2009 1/1/2010 1456636 CLECO Power Marketing 10 10/1/2007 10/1/2012 1457947 (renewal) Constellation Energy Group 6 6/1/2007 6/1/2008 1457949 (renewal) Constellation Energy Group 70 6/1/2007 6/1/2008 1457988 (renewal) Louisiana Generating LLC 2 6/1/2007 6/1/2008

1460898 Louisiana Energy & Power Authority 3 1/1/2009 1/1/2030 1460899 Louisiana Energy & Power Authority 5 1/1/2009 1/1/2030 1461442 Louisiana Energy & Power Authority 12 1/1/2009 1/1/2030 1464028 East Texas Electric Cooperative 168 1/1/2010 1/1/2040 1466197 NRG Power Marketing 206 1/1/2009 1/1/2010 1466561 Constellation Energy Group 28 1/1/2008 1/1/2009 1466562 Constellation Energy Group 25 1/1/2008 1/1/2009 1468113 Municipal Energy Agency of Miss 20 6/1/2011 6/1/2041 1470811 East Texas Electric Cooperative 186 1/1/2010 1/1/2040 1472304 (renewal) South Miss Electric Power Assoc 75 6/1/2009 6/1/2011 1472315 South Miss Electric Power Assoc 100 6/1/2010 6/1/2011 1477069 Entergy Services, Inc. (EMO) 10 11/1/2007 11/1/2037 1477256 NRG Power Marketing 103 1/1/2008 1/1/2009 1479051 NRG Power Marketing 103 7/1/2008 7/1/2009 1480164 Entergy Services, Inc. (EMO) 725 1/1/2005 9/1/2033 1481170 (renewal) Ameren Energy, Inc. 12 6/1/2007 6/1/2008 1483485 Entergy Services, Inc. (EMO) 100 1/1/2008 1/1/2011 1485805 NRG Power Marketing 103 7/1/2008 7/1/2009 1486898 (renewal) NRG Power Marketing 100 9/1/2008 9/1/2009 1487076 (renewal) Cargill Power Markets, LLC 103 1/1/2009 1/1/2010 1487084 (renewal) Cargill Power Markets, LLC 103 1/1/2009 1/1/2010 1487880 NRG Power Marketing 300 1/1/2008 1/1/2010 1487892 (renewal) NRG Power Marketing 100 1/1/2009 1/1/2010 1487893 (renewal) NRG Power Marketing 100 1/1/2009 1/1/2010 1492216 (renewal) NRG Power Marketing 92 1/1/2010 1/1/2025 1492223 Constellation Energy Group 22 1/1/2008 1/1/2009 1494443 Constellation Energy Group 35 1/1/2008 1/1/2009 1494445 Constellation Energy Group 75 1/1/2008 1/1/2009 1494446 Constellation Energy Group 75 1/1/2008 1/1/2009 1494450 Constellation Energy Group 25 1/1/2008 1/1/2009 1495910 Southwestern Electric 78 5/1/2010 5/1/2013 1498120 Constellation Energy Group 60 4/1/2012 4/1/2042 1498122 Constellation Energy Group 30 4/1/2012 4/1/2042 1498129 City of Conway 50 4/1/2012 4/1/2042 1499818 (renewal) Merrill Lynch Commodities 85 11/1/2007 11/1/2008 1499819 (renewal) Merrill Lynch Commodities 4 11/1/2007 11/1/2008 1499610 NRG Power Marketing 300 1/1/2008 1/1/2013 1500582 (delisting) Entergy Services, Inc. (EMO) 1 1/1/2008 1/1/2038

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OASIS PSE MW Begin End 1500584 (delisting) Entergy Services, Inc. (EMO) 1 1/1/2008 1/1/2038


1503806 Constellation Energy Group 50 1/1/2008 1/1/2009 1503807 Constellation Energy Group 25 1/1/2008 1/1/2009 1505603 East Texas Electric Cooperative 10 1/1/2008 1/1/2010 1512518 Westar Energy 6 10/1/2007 10/1/2008 1514102 East Texas Electric Cooperative 29 1/1/2008 1/1/2017 1514104 East Texas Electric Cooperative 35 1/1/2008 1/1/2017 1514105 (delisting) East Texas Electric Cooperative 1 1/1/2008 1/1/2017 1517005 (renewal) NRG Power Marketing 103 1/1/2011 1/1/2026 1519357 (renewal) Constellation Energy Group 100 1/1/2008 1/1/2009 1521210 (renewal) NRG Power Marketing 5 9/1/2009 9/1/2010 1521266 (renewal) MidAmerican Energy, Inc. 50 1/1/2008 1/1/2009 1521268 (renewal) MidAmerican Energy, Inc. 50 1/1/2008 1/1/2009 1521269 (renewal) MidAmerican Energy, Inc. 50 1/1/2008 1/1/2009 1521270 (renewal) MidAmerican Energy, Inc. 50 1/1/2008 1/1/2009 1523070 (renewal) NRG Power Marketing 100 9/1/2009 9/1/2010 1523071 (renewal) NRG Power Marketing 100 1/1/2010 1/1/2011 1523072 (renewal) NRG Power Marketing 100 1/1/2010 1/1/2011 1525148 Merrill Lynch Commodities 16 11/1/2007 11/1/2008 1525820 (renewal) NRG Power Marketing 3 7/1/2009 7/1/2014 1526694 (renewal) NRG Power Marketing 103 1/1/2009 1/1/2010 1527816 Westar Energy 6 10/1/2007 10/1/2012 1528112 (renewal) Entergy Services, Inc. (EMO) 50 6/1/2008 6/1/2009 1528113 (renewal) Entergy Services, Inc. (EMO) 200 6/1/2008 6/1/2009 1528114 Entergy Services, Inc. (EMO) 1523 1/1/2008 1/1/2038 1528115 Entergy Services, Inc. (EMO) 1039 1/1/2008 1/1/2038 1528116 Entergy Services, Inc. (EMO) 1834 1/1/2008 1/1/2038 1530287 Empire District 50 3/1/2010 3/1/2030 1530288 Empire District 50 3/1/2010 3/1/2030 1531163 (renewal) NRG Power Marketing 103 7/1/2009 7/1/2010 1535503 (delisting) Entergy Services, Inc. (EMO) 1 5/1/2008 5/1/2009 1535504 Entergy Services, Inc. (EMO) 485 5/1/2008 5/1/2009 1535867 (renewal) MidAmerican Energy, Inc. 100 3/1/2008 3/1/2009 1545499 Louisiana Energy & Power Authority 6 4/1/2008 4/1/2009 Pre-888 Transactions http://oasis.e-terrasolutions.com/documents/EES/Pre-Order888Transactions.xls

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http://oasis.e-terrasolutions.com/documents/EES/Pre-Order888Transactions.xls


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9. STUDY QUEUE OASIS # PSE MW Begin End 1460876 Aquila Networks - MPS 75 3/1/2009 3/1/2029 1460878 Aquila Networks - MPS 75 3/1/2009 3/1/2029 1460879 Aquila Networks - MPS 75 3/1/2009 3/1/2029 1460881 Aquila Networks – MPS 75 3/1/2009 3/1/2029 1460900 Louisiana Energy & Power Authority 116 1/1/2009 1/1/2030 1478781 Entergy Services, Inc. (EMO) 804 1/1/2008 1/1/2058 1481059 Constellation Energy Group 60 2/1/2011 2/1/2030 1481111 City of Conway 50 2/1/2011 2/1/2046 1481119 Constellation Energy Group 30 2/1/2011 2/1/2030 1481235 Louisiana Energy & Power Authority 50 2/1/2011 2/1/2016 1481438 NRG Power Marketing 20 2/1/2011 2/1/2021 1483241 NRG Power Marketing 103 1/1/2010 1/1/2020 1483243 NRG Power Marketing 206 1/1/2010 1/1/2020 1483244 NRG Power Marketing 309 1/1/2010 1/1/2020 1520043 Municipal Energy Agency of Miss 20 1/1/2011 1/1/2026 1543292 Constellation Energy Group 215 4/1/2009 4/1/2010 1543616 CLECO Power Marketing 17 1/1/2009 1/1/2011 1543621 CLECO Power Marketing 162 1/1/2010 1/1/2019 1546108 (delisting) Entergy Services, Inc. (EMO) 1 1/1/2011 1/1/2051

1547988 West Star Energy Generation & Marketing 27 6/1/2010 6/1/2040

1551562 CLECO Power LLC 11 6/1/2009 6/1/2018


10. ATTACHMENTS A. Table of Acronyms

ACSR Aluminum Conductor Steel Reinforced ACSS Aluminum Conductor Steel Supported ADEQ Arkansas Department of Environmental Quality AFUDC Allowance for Funds Used During Construction ATC Available Transfer Capability EAI Entergy Arkansas EES Entergy Control Area EHV Extra-High Voltage ICT Independent Coordinator of Transmission kV Kilo-Volt MCM (M) Thousand Circular Mils MVA Mega-Volt Amp MW Mega-Watt NPDES National Pollution Discharge Elimination System NOI Notice of Intent OASIS Online Access and Same-time Information System OATT Open Access Transmission Tariff POD Point of Delivery POR Point of Receipt SES Steam Electric Station SOC System Operations Center SHPO Arkansas State Historic Preservation Office SHV Super High Voltage SW Switch Station TOC Transmission Operations Center

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B. Scope Summary Diagram / Area Map

Location Description Drawing

Number

North Louisiana Projects Area Map AM-1

Arkansas Projects Area Map AM-2

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C. One Line Drawings

Substation Drawing

Number

Sarepta 345kV Oneline L0475SO5

Sarepta 115kV Oneline L0452SO5

El Dorado 345kV Oneline A2002SO6

Emerson 115kV Oneline A3651SO5

Lucky 115kV Oneline L0410SO5

Vienna 115kV Oneline L0413SO5

Couch 115kV Oneline A2404SO5

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D. Duration Schedule

○ Summary level Schedule (Schedule Summary FS 1552146) Included in attachments.

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Documents

TRANSMISSION LINE & SUBSTATION PROJECTS COMPANY: … · o Install 3 CVT pedestals (E towers) **Double check with AP upon location of CVTs. o Install fifteen 115kV porcelain station