WECC Annual Progress Report – Electric System Operator (AESO)

Date: March 1, 2015 Prepared by: AESO Long Term Planning Prepared for: Technical Studies Committee, WECC cc: Planning Coordination Committee, WECC

Version: 1

Table of Contents

1 Completed Projects ...... 1 2 Projects in Construction ...... 1 2.1 System Projects ...... 1 2.1.1 Project 786 - Region 240kV Line Upgrades – Updated ...... 1 2.1.2 Project 787 - Transmission Reinforcement (SATR) - Updated ...... 2 2.1.3 Project 737 - North South Transmission Reinforcement (WATL and EATL) ...... 3 2.1.4 Project 813 - Red Deer Area Transmission Development Phase 2 - Updated ...... 4 2.1.5 Project 1117 - Foothills Area Transmission Development East (FATD East) - Updated ...... 5 2.2 Connection Projects: ...... 6 2.2.1 Project 719 - ENMAX Shepard Energy Centre ...... 6 3 Projects Pending Approval ...... 6 3.1 System Projects ...... 7 3.1.1 Project 1113 - Hanna Region Transmission Development Phase 2 ...... 7 3.1.2 Project 850 - South and West of Edmonton Transmission Development - Updated ...... 7 3.2 Connection Projects: ...... 8 3.2.1 Project 479 - Naturener Wild Rose Wind Farm - Updated ...... 8 3.2.2 Project 693 - Naturener Wild Rose Wind Farm Phase 2 - Updated ...... 9 3.2.3 Project 1590 - Fort McMurray West 500 kV Line - Updated ...... 9 4 Projects in the Planning Process: ...... 10 4.1 System Projects: ...... 10 4.1.1 Project 1591 - Fort McMurray East 500 kV Line - Updated ...... 10 4.2 Connection Projects: ...... 10 4.2.1 Project 515 - Benign Energy Heritage Wind Farm ...... 10 4.2.2 Project 1080 - Old Elm & Pothole Creek Wind Farm - Update ...... 11 4.2.3 Project 1290 – Whitetail Peaking Station ...... 11 4.2.4 Project 1321 – Shell Carmon Creek ...... 12 4.2.5 Project 1421 - ATCO Power Heartland Generating Station - Updated ...... 13 4.2.6 Project 1440 - Genesee Generating Station - Unit 4 (G4) and Unit 5 (G5) ...... 13 4.2.7 Project 1477 - TransAlta Sundance 7 Combined Cycle Power Plant ...... 14 4.2.8 Project 1478 Rocky Mountain Power ASSISt – New for 2015 ...... 14

1 Completed Projects

The following projects have been completed since the 2014 progress report.

• Project 629 Alberta Industrial Heartland Bulk Transmission Development

• Project 728 - Greengate Blackspring Ridge I wind farm 2 Projects in Construction

The following projects have been approved by the Alberta Utilities Commission at both the need, facilities and routing stages with construction set to begin or on-going.

2.1 System Projects 2.1.1 Project 786 - Edmonton Region 240kV Line Upgrades – Updated

The majority of this project has been completed:

• Increase the capacity of 908L and 909L up to the summer rating of the primary conductor (2 x 477 kcmil) by replacing the conductor on the small conductor section (first 4 km of line east of Sundance 310P) • Increase the capacity rating of 902L up to the summer rating of the primary conductor (2 x 477kcmil) by replacing the conductor on the small conductor sections of 902L (first 4 km of line east of Wabamun 19S and first 4 km of line east of Sundance 310P) • Construct 12 km of new double circuit 240 kV line with one side strung east from 320P to the 904L-908L-909L confluence point west of Stony Plain in order to move the termination point of 908L from Sundance 310P to Keephills 320P, and add two associated 240 kV breakers at Keephills 320P • Swap the connections of 904L and 908L at the 904L-908L-909L confluence point south of Jasper 805S in order to move the termination point of 904L from Wabamun 19S to Sundance 310P • Install Special Protection Systems (SPS) for three double circuit tower failure events (Category C5) • Install a 240 kV 600 MVA phase shifting transformer in 9L57 line and three associated 240 kV breakers; preferred location is the proposed Livock station north of Brintnell. The following components of the project are not yet completed construction due to continued negotiations with land owners: • Rebuild the 41 km east-west single circuit wood pole sections of 904L (Jasper to Wabamun) using 2 x 1033 kcmil conductor. On-going negotiations with land owners in the area has delayed completing this work. • Rebuild the 6 km east-west single circuit wood pole section of 904L (Jasper to Petrolia) using 2 x 1033 kcmil conductor. On-going negotiations with land owners in the area has delayed completing this work. • Increase the capacity of both 904L sections out of Jasper 805S up to the summer rating of the primary conductor (2 x 477 kcmil) by replacing the conductor on the small conductor section (12 km of line south of Jasper 805S).

The project is under construction and the current expected in service date is end of January 2016.

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TFO Contacts: AltaLink: Joe Napora, 780-822-7120; [email protected] EPCOR: Wilf Behr, 780-412-3962; [email protected]

AESO Contact: Brian Belway Project Co-ordinator Transmission Alberta Electric System Operator (AESO) 2500, 330 – 5th Avenue SW , AB T2P 0L4 403-539-2569 [email protected]

2.1.2 Project 787 - Southern Alberta Transmission Reinforcement (SATR) - Updated

The project considers the implementation of a 240 kV loop in the Southern Alberta region in order to allow the future connection of wind power in that region and to move this power to the Calgary area through three power corridors; in the east from Whitla to West Brooks, in the center from Peigan to Foothills and on the west from Goose Lake to Langdon through the 500 kV transmission line 1201L. This project consists of the following lines:

• 911L replaced by Foothills to Peigan 240 kV double circuit transmission line with 50% series compensation. Each circuit rated with a summer/winter capacity of approximately 980/980 MVA. (Under construction) • A new 240 kV double circuit line, approximately 150 km in length from Cassils (near West Brooks) to Bowmanton (East ). Each circuit is rated at a summer/winter capacity of approximately 980/980 MVA. (Commissioned) • A new 240 kV switching station at a location known as Milo Junction and converting the two existing three terminal Langdon - West Brooks - North lines into six two-terminal lines. (Commissioned) • A new 240 kV double circuit line, approximately 80 km in length from Bowmanton (Medicine Hat) to Whitla connecting the wind farms in the south. Each circuit is rated at a summer/winter capacity of approximately 980/980 MVA. (Commissioned) • New Chapel Rock 500/240 kV substation cut into existing 1201L. The station will include two 1200 MVA 500/240 kV transformers, two 240 kV 100 MVAr capacitor banks and a +200/-100 MVAr SVC and one 45 MVAr shunt reactor. • New Chapel Rock – Castle Rock Ridge - Goose Lake 240 kV double circuit transmission line with a rated summer/winter capacity of approximately 980/1200 MVA.

• Add a 138 kV phase shifting transformer between Coleman and Pincher Creek. (Commissioned) • New Ware Junction – Langdon 240 kV double circuit transmission line with a rated summer/winter capacity of 980/1200 MVA with 50% series compensation. (Cancelled) • The addition of two (2) 240/138kV 400MVA transformers at new Windy Flats station near existing Peigan 59S station. (Under construction) • New 240 kV Coulee substation to connect future wind farms. (On hold) • Interconnect with Picture Butte (MATL) substation. (On hold) • Interconnect Etzikom Coulee with Goose Lake. (On hold)

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The project is expected to be operational by 2016 except for those components on hold. Currently most of the project developments are at Facility Application stage.

The connection studies conducted for this system project does not indicate a negative impact on the transfer capability of WECC Path 1.

TFO Contact: Gary Ritland, P.Eng. Senior Project Manager AltaLink Management Ltd. 2611 - 3rd Avenue SE Calgary, AB, T2A 7W7 Tel: 403-267-8052 Mobile: 403-998-1456

AESO Contact: Dale Bergman Project Co-ordinator Alberta Electric System Operator (AESO) 2500, 330 – 5th Avenue SW Calgary, AB T2P 0L4 403-539-2704 [email protected]

2.1.3 Project 737 - North South Transmission Reinforcement (WATL and EATL) This project consists of two 1000 MW 500 kV line-commutated HVDC lines to alleviate transmission congestion along the SOK cut-plane.

East Alberta Transmission Line (EATL) connects the Heartland 500 kV substation in the Area to the new Newell 240 kV substation in the Brooks Area. EATL will be built as bi-pole line with 1000 MW monopole converters using remaining conductor as metallic return. The project was approved by the Alberta Utilities Commission on November 15, 2012. EATL is expected to be in service by the end of 2015.

West Alberta Transmission Line (WATL) connects from new Sunnybrook station near Genesee station in the Wabamun Area to Crossings station near existing Langdon station, which is adjacent to the terminal of 1201L 500 kV BC-Alberta tie-line. WATL will be built as bi-pole line with 1000 MW mono-pole converters using remaining conductor as metallic return. The project was approved by the Alberta Utilities Commission on December 6, 2012. WATL is expected to be in service by the end of 2015.

The addition of these two HVDC lines will significantly increase the North to South transfer capability (SOK limit) within Alberta. As the 1201L 500 kV Alberta to BC export capability is limited by the SOK limit, the addition of these two lines will increase the East to West Total Transfer Capability of 1201L.

AESO Contact: Kelly Yagelniski, PMP, B.Admin Director, Project Support Transmission Project Delivery Alberta Electric System Operator (AESO) 403-539-2878 direct [email protected]

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2.1.4 Project 813 - Red Deer Area Transmission Development Phase 2 - Updated

The Red Deer Area Transmission Development project will be implemented in two stages, and is pending approval of the Facility Application.

The following is an overview of the major components in stage I. The timing of stage II will be determined by the future load projections and/or a new generator application in the area.

• Split 768L and 778L and re-terminate at Red Deer North 217S (add 1 breaker, use 1 existing breaker) • Gaetz 87S (add 2 breakers, use 1 existing breaker) • Add second auto-transformer at 17S. • Add one 50 MVAr 138 kV capacitor bank at Joffre 535S • Add one 50 MVAr 138 kV capacitor bank at Prentiss 276S • Add one 27.6 MVAr 138 kV capacitor bank at Ellis 332S • Re-build 5 km of 80L 138 kV transmission line from South Red Deer 194S (use existing1 breaker) to North Red Deer 217S (use existing breaker) • Re-build 5 km (including 1 km of underground) of 80L 138 kV transmission line from South Red Deer 194S (use existing breaker) to Red Deer 63S (use existing breaker) • Re-build 29 km 755L 138 kV transmission line from Red Deer 63S (use existing breaker) to Piper Creek 247S (use existing breaker) to Joffre 535S (use existing breaker) • Re-build 33 km 717L (now called 637L and 648L) 138 kV transmission line from Red Deer 63S (use existing breaker) to Sylvan Lake (use existing breaker) to Benalto (use existing breaker) • New Johnson 281S 240/138 kV substation with 240 kV double circuit (200m) from 918L and 2 km of double-circuit 138 kV line to 80L and a connection to 166L • New 240/138 kV Wolf Creek 288S station with 240 kV double circuit (200m) from 910L and 4 km of double-circuit 138 kV line to Ponoka 331S (use existing breaker from salvage of D13 and D16) connect to 883L • New 240/138 kV Hazelwood 287S station on the 240 kV line 924L • New 13 km of 138 kV transmission line from Lacombe 212S (add 1 breaker) to Ellis 332S (add 1 breaker) • Salvage 53 km 80L 138 kV transmission line from Red Deer 63S to Innisfail 214S • Salvage 23 km 80L 138 kV transmission line from Ponoka 331S to West Lacombe 958S (this will be less by the approx. 5 km of salvage now part of Wolf Creek (CP44)) • Salvage 40 km of 716L from 40S to Ponoka 331S (this will be less by the approx. 5 km of salvage now part of Wolf Creek (CP44)) The in-service date is in stages starting from 2013.

The Needs Identification Document (NID) was filed with the Alberta Utilities Commission in July 2011, which was approved in April 2012. Facilities Applications are being prepared in stages with the last stage scheduled to be filed by Q3 2014.

TFO Contact: Charles LeRougetel [email protected] 403-387-8323

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AESO Contact: Anita Patel Project Co-ordinator Transmission Alberta Electric System Operator (AESO) 2500, 330 – 5th Avenue SW Calgary, AB T2P 0L4 403-539-2516 [email protected]

2.1.5 Project 1117 - Foothills Area Transmission Development East (FATD East) - Updated

The AESO has identified the need to reinforce the transmission system in the south Calgary and in the High River planning area. This reinforcement will alleviate existing and anticipated constraints to accommodate the expected load growth and integrate new generation capacity within the subject area, and facilitate transmission of generation from southern Alberta to load centres. The FATD project will consist of two separate sub-projects.

This approved project will install several new 240 kV lines between stations Janet 74S, SS-25, SS-65, Foothills 237S and Langdon 102S to improve system reliability including the construction of new Foothills 237S station. Also included in this approved project is the installation of 138 kV lines in the High River planning area.

The new Foothills 237S station will serve as the termination points for the new double circuit series compensated 240 kV line from Windy Flats 137S near Peigan 59S. Foothills 237S is where the Southern Alberta Transmission Reinforcement (SATR) is tied with this FATD project to achieve the required overall system performance.

The project has been approved by the Alberta Utilities Commission in October 2013 with an ISD expected in Q3 2015.

The studies conducted for this system project does not indicate a negative impact on the transfer capability of WECC Path 1.

TFO Contacts: Arnie Reimer, P.Eng. Senior Project Manager, Major Projects - South AltaLink 2611 - 3rd Avenue SE Calgary, AB T2A 7W7 403-267-6153 [email protected]

Jesus Castro, P.Eng. Project Manager ENMAX Power Corporation 141 - 50 Avenue SE Calgary AB, T2G 4S7 [email protected]

AESO Contact: Sonja Tessari Project Co-ordinator Transmission Alberta Electric System Operator (AESO) 2500, 330 - 5th Avenue SW

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Calgary, AB T2P 0L4 403-539-2669 [email protected]

2.2 Connection Projects: The projects listed in this section are customer connection projects. These are either major generation projects with 200 MW and above or load connection on the bulk system in proximity to the WECC Path 1.

2.2.1 Project 719 - ENMAX Shepard Energy Centre The ENMAX Shepard Energy Centre is a natural gas-fired 800 MW combined cycle power station. The power station is composed of two 240 MW gas turbines and one 320 MW HRSG. The power station is located at the eastern edge of the City of Calgary and approximately 4 km south of existing Janet 74S station. There is a large transmission system development associated with this project to facilitate integration of this power station as well as to accommodate other ongoing system developments such as WATL and SATR.

Construction is well underway and the power station has a planned commercial in service date of June 2015.

GFO Contact: Bill Mercer General Manager, Shepard Energy Centre ENMAX Generation 9500 - 100 Street SE Calgary, AB T3S 0A2 [email protected]

TFO Contact: Lou Delaney Senior Project Manager, Major Projects - South AltaLink 2611 - 3rd Avenue SW Calgary, AB T2A 7W7 403.267.4252 [email protected]

AESO Contact: Sonja Tessari Project Coordinator Transmission Alberta Electric System Operator (AESO) 2500, 330 - 5th Avenue SW Calgary, AB T2P 0L4 403-539-2669 [email protected]

3 Projects Pending Approval

The following projects are pending approval from the Alberta Utilities Commission at the need, facilities and/or routing stage.

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3.1 System Projects The projects listed in this section are bulk transmission systems projects.

3.1.1 Project 1113 - Hanna Region Transmission Development Phase 2

The Hanna Region Transmission Development Project is designed to reinforce the transmission system in the region in order to meet the projected wind aggregared generating facilities and futuere load growth, in particular, pipeline pumping loads. AML and ATCO are transmission facility owners (TFOs) as this area is serviced by these two TFOs. The major components of this project consist of:

• String second side on the 240 kV double circuit line from Oakland to Lanfine and related alterations at Oakland 946S and Lanfine 959S • Cordel 755S to Halkirk switching station, new double circuit 240 kV line (one side strung) and related alterations • Anderson to Oakland Transmission Project 9L70/9L97 240kV lines, Oakland station and related alterations • String second side on the 240 kV double circuits line from Oakland 946S to Coyote Lake 963S and related alterations at Oakland 946S and Lanfine 959S.

Additionally, the following components are designed to reinforce the local network: • Convert existing Hanna 763S station to 144 kV station • New 144 kV line from Coyote Lake 963S to Hanna 763S and related alterations • Addition of 2nd 240/144 kV transformer at Pemukan 932S • Addition of 2nd 240/144 kV transformer at Lanfine 959S • Addition of 2nd 240/144 kV transformer at Hansman Lake 650S • Nilrem 574S station capacitor bank addition • Hansman Lake 650S station capacitor bank addition • 648S station capacitor bank additions • Decommission of 6L44 (Rowley 768S to Big Valley 778S) and 6L22 ( Creek 802S to Rowley 768S)

As per NID approval, the requested in-service date is year 2017. In light of change in system conditions (e.g. modest growth in wind development and load growth pattern), the AESO is presently reviewing the need as well as timing of the components through staging process. Until these studies are finalized, the project is on hold.

AESO Contact: Anita Patel Project Co-ordinator Transmission Alberta Electric System Operator (AESO) 2500, 330 – 5th Avenue SW Calgary, AB T2P 0L4 403-539-2516 [email protected]

3.1.2 Project 850 - South and West of Edmonton Transmission Development - Updated

This project addresses the need for development in the area South and West of Edmonton. The approved alternative includes:

• New 240/138 kV station (Harry Smith 367S) south of Stony Plain with two 240/138 kV 400 MVA transformers, connected by an in and out connection to 1043L between Keephills 320P and Petrolia 816S

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• New 240/138 kV station (Saunders Lake 289S) north of Leduc with two 240/138 kV 400 MVA transformers, connected by an in and out connection to 910L between Ellerslie 89S and Wolf Creek 288S, and connected by an in and out connection to 914L between Ellerslie 89S and Bigstone 86S • New 25 km 138 kV line from 780L to Cooking Lake and reconfiguration • New 13 km 138 kV line from Harry Smith 369S to East Stoney Plain 434S • Two new 13 km 138kV line from Harry Smith 367S to Acheson 305S • Two new 1 km lines from Saunders Lake 289S to 780L and to 868L • Normally open operation of 133L between Wabamun 19S and 243L tap • New capacitor banks at Leduc 325S (27 MVAr)

The transmission facilities Needs Identification Document was filed with the Alberta Utilities Commission December 2012 and approved December 2013. Facilities applications are pending from the TFO (AltaLink) to the Alberta Utilities Commission. The expected in service date is late 2017.

TFO contact: Ashraf Muhammad Project Manager AltaLink 2611 3rd Avenue SE Calgary, AB T2A 7W7 403-387-8349 [email protected]

AESO Contact: Ilice Tan Project Co-ordinator Transmission Alberta Electric System Operator (AESO) 2500, 330 – 5th Avenue SW Calgary, AB T2P 0L4 403-539-2530 [email protected]

3.2 Connection Projects: The projects listed in this section are customer connection projects. These are either major generation projects with 200 MW and above or load connection on the bulk system in proximity to the WECC Path 1.

3.2.1 Project 479 - Naturener Wild Rose Wind Farm - Updated

Wild Rose 1, a 210 MW wind-powered generating facility, is comprised of 70 x 3 MW wind turbine generators with a collector substation located approximately 55 km southeast of the City of Medicine Hat. This wind power plant will be connected from the Wild Rose 547S station to the Elkwater 264S station via a single circuit 240 kV line.

The proposed in-service date for the interconnection of Wild Rose 1 is 2016. The Facilities Application was approved by the Alberta Utilities Commission on March 21, 2012.

AESO Contact: Dale Bergman Project Co-ordinator Transmission Alberta Electric System Operator (AESO) 2500, 330 – 5th Avenue SW Calgary, AB T2P 0L4 Page 8

403-539-2704 [email protected]

3.2.2 Project 693 - Naturener Wild Rose Wind Farm Phase 2 - Updated

Wild Rose 2, a 210 MW wind-powered generating facility, is comprised of 70 x 3 MW wind turbine generators with a collector substation located approximately 30 km south of the City of Medicine Hat. In the near future, the wind power facility will be expanded to have a total of 204 MW installed capacity. This wind power plant will be connected from the Eagle Butte 274S station to the Elkwater 264S station via a single circuit 240 kV line.

The proposed in-service date for the interconnection of Wild Rose 2 is 2016. The Facilities Application was approved by the Alberta Utilities Commission on March 21, 2012.

AESO Contact: Dale Bergman Project Co-ordinator Transmission Project Delivery Alberta Electric System Operator (AESO) 2500, 330 – 5th Avenue SW Calgary, AB T2P 0L4 403-539-2704 [email protected]

3.2.3 Project 1590 - Fort McMurray West 500 kV Line - Updated

The project was part of Project 838 - Fort McMurray Area Transmission Bulk System Reinforcement. The project consists primarily of one 500 kV AC line from Sunnybrook station to the new Thickwood 500/240 kV station in the Fort McMurray area with a target operation date of June 2019. The project was competitively procured as required by legislation, and Alberta PowerLine (consortium) was selected by the AESO in December 2014 as bid winner. Preparation of facility applications to submit to the Alberta Utilities Commission is in progress by Alberta PowerLine. http://www.albertapowerline.com/

As this project was approved through legislation, transmission need approval from the Alberta Utilities Commission was not required.

AESO Contact: Kelly Yagelniski, PMP, B.Admin Director, Project Support Transmission Project Delivery Alberta Electric System Operator (AESO) 403-539-2878 direct [email protected]

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4 Projects in the Planning Process:

The following projects are on the project list or in the connection queue that have yet to file applications to the Alberta Utilities Commission.

4.1 System Projects: The projects listed in this section are bulk transmission system projects.

4.1.1 Project 1591 - Fort McMurray East 500 kV Line - Updated The project was part of Project 838 - Fort McMurray Area Transmission Bulk System Reinforcement. The project consists primarily of one 500 kV AC line from the Heartland station to the new Thickwood 500/240 kV station in the Fort McMurray area with operation date to be determined.

As this project was approved through legislation, transmission need approval from Alberta Utilities Commission is not required.

The project is required to be competitively procured by legislation, and the timing of this development is under review.

AESO Contact: Kelly Yagelniski, PMP, B.Admin Director, Project Support Transmission Project Delivery Alberta Electric System Operator (AESO) 403-539-2878 direct [email protected]

4.2 Connection Projects: The projects listed in this section are customer connection projects. These are either major generation projects with 200 MW and above or load connection on the bulk system in proximity to the WECC Path 1.

4.2.1 Project 515 - Benign Energy Heritage Wind Farm

The proposed Heritage wind farm will be connected to the Alberta Interconnected Electric System (AIES) at the Fidler 312S station in the Pincher Creek area. The wind farm is rated at 350 MW with 100 MW in- service at Stage 1 and 250 MW at Stage 2. The Stage 1 development is dependent upon the completion of Fidler 312S for connection. The Stage 2 development is dependent upon the completion of transmission lines 1004L/992L from Fidler 312S to Chapel Rock 491S for connection. Under the current configuration, the wind power plant will consist of Vestas V90 3 MW wind turbines. Both stages are on- hold pending regulatory approval of Fidler 312S and transmission lines 1004L/992L.

The reason for the staged approach is to inject as much as the system can handle without serious RAS constraints prior to the approval and completion of the Chapel Rock station (connection to the 500 kV line). After Chapel Rock station is built, the system in the Pincher Creek area will become mostly unconstrained and will be able to handle the full output of the wind farm.

The requested in service dates (ISD) for Stages 1 and 2 are on-hold by the developer.

TFO contact: Alan Kettles Benign Energy 2422 - 246 Stewart Green Calgary AB, T3H 3C8 403-262-3221 Page 10

AESO Contact: Dale Bergman Project Co-ordinator Transmission Project Delivery Alberta Electric System Operator (AESO) 2500, 330 – 5th Avenue SW Calgary, AB T2P 0L4 403-539-2704 [email protected] 4.2.2 Project 1080 - Old Elm & Pothole Creek Wind Farm - Update

The customer has proposed a 300 MW wind farm located in the Glenwood area close to Magrath 225S. Initially, the proposed interconnection is to 988L, a planned 240 kV transmission line between Goose Lake 103S and Journault 260S (SATR Phase 2). However, with this line on hold, the project connection is being reconsidered.

The customer requested an in service date of October 2013, however due to the system development required for the connection (988L) the in service date has been revised to March 2018.

The project proponent is currently developing AUC applications waiting on further details of the 988L development before consultation can begin. AUC application is dependent on the transmission facilities application filing date of the 988L (240 kV line), which is on hold pending review of its need.

GFO contact: Marc Stachiw Old Elm Wind Farm Ltd. #1320, 396-11th Ave SW Calgary, Alberta T2R 0C5 403-266-5635 [email protected]

AESO Contact: Dale Bergman Project Co-ordinator Transmission Alberta Electric System Operator (AESO) 2500, 330 – 5th Avenue SW Calgary, AB T2P 0L4 403-539-2704 [email protected]

4.2.3 Project 1290 – Whitetail Peaking Station Enbridge Inc. has proposed to construct the Whitetail Peaking Station as a new point of supply. The plant consists of 4 x 50 MW of gas fired peaking units. The project is to be developed in one stage with an in service date of August 1, 2016.

The plant is located in the Peace River planning area (area 19) approximately 13.5 km north of the existing Wesley Creek 834S station. The preferred alternative is to complete an in and out connection to 7L106 in the northwest region of Alberta.

The project is currently in Stage 3 out of 6 of the Connection Process and a functional specification has been finalized by the AESO with planned in-service date of May 1, 2016 for the substation facilities.

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TFO Contact:

Nilesh Rana Project Manager, Transmission Projects ATCO Electric 10035 - 105 Street Edmonton, AB T5J 2V6 Ph: 780-509-2057 Cell: 780-289-5045

AESO Contact:

Steve Palmer Transmission Project Delivery Alberta Electric System Operator (AESO) 2500, 330 - 5th Ave SW Calgary, AB, T2P 0L4 Ph: 403-539-2558 Cell: 403-463-6073

4.2.4 Project 1321 – Shell Carmon Creek Shell has proposed to build a Cogeneration Facility approximately 16 km northeast of the existing 240 kV Wesley Creek 834S station in the northwest region of Alberta. This facility will consist of three identical gas-fired cogeneration units with a rating of 230 MW each including 90 MW of on-site load. Shell will build a customer owned 240/25/18 kV substation and seeks an Industrial System Designation (ISD) for the project. All the on-site load will be served from Shell's proposed station.

This facility will be connected to the Alberta Interconnected Electric System (AIES) via two new 240 kV single circuit lines to the existing Wesley Creek 834S 240 kV substation.

The three units will be connected with target in-service dates as follows:

• Unit 1 - July 1, 2015 • Unit 2 - January 1, 2016 • Unit 3 - Q4 (Oct. 1), 2016.

TFO Contact:

Sridhar Rao Project Manager Transmission Projects ATCO Electric 10035 105 Street Edmonton, AB T5J-2V6 Ph: 780-508-4678 Cell: 780-686-6431

AESO Contact:

Steve Palmer Transmission Project Delivery Alberta Electric System Operator (AESO) 2500, 330 - 5th Ave SW Calgary, AB, T2P 0L4 Ph: 403-539-2558 Cell: 403-463-6073 Page 12

4.2.5 Project 1421 - ATCO Power Heartland Generating Station - Updated ATCO Power Canada Ltd. is proposing to construct a combined cycle power station called ATCO Heartland Generation Station. The project will consist of two identical phases: • Phase 1: 510 MW generation in September 2016 • Phase 2: Additional 510 MW generation in October 2018

Each combined cycle phase will include the following major components: • 1 x natural gas-fired turbine • 1 x steam turbine

This facility will be connected to the 410S station near the City of Fort Saskatchewan.

The generation and transmission facilities will be designed and operated to ensure that the outage of any single element/component will not cause a loss of more than 466 MW of generation to the AIES. Therefore, there is no impact to Path 1 Available Transfer Capability (ATC).

AESO Contact: Steve Palmer Transmission Project Delivery Alberta Electric System Operator (AESO) 2500, 330 – 5th Avenue SW Calgary, AB T2P 0L4 403-539-2558 [email protected]

4.2.6 Project 1440 - Genesee Generating Station - Unit 4 (G4) and Unit 5 (G5) On April 30, 2013, the AESO received a system access service request (SASR) from Capital Power L.P. to connect two 500 MW natural gas-fired combined cycle blocks (Capital Power Energy Centre - CPEC) to the AIES at the Genesee power generation site. Each combined cycle block will consist of two gas turbine generators (GTG) and associated steam turbine generator (STG), all on one shaft driving one electrical generator.

CPEC indicated that the gross generation capacity is expected to be up to 1000 MW for both combined cycle blocks, which could be developed in stages. The study assumes that the gross capacity of the proposed generating station is 1000 MW.

The facility in-service date is currently expected to be January 2018. However, CPEC indicated that this date is subject to change due to market conditions.

TFO Contact: EPCOR Distribution and Transmission Inc. Mark Bensted 2000, 10423 - 101 Street NW Edmonton AB (780) 412-3249 [email protected]

AESO Contact: Vladimir Lopez Transmission Project Delivery Alberta Electric System Operator (AESO) 2500, 330 – 5th Avenue SW Calgary, AB T2P 0L4 (T) 403-539-2819 [email protected]

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4.2.7 Project 1477 - TransAlta Sundance 7 Combined Cycle Power Plant TransAlta MidAmerican (TAMA) Partnership is proposing to construct approximately 850 MW Sundance 7 generating facility in the vicinity of LSD 10-52-4-W5M. The site is located near existing TransAlta generating facilities near Wabamun. Sundance 7 will be a combined cycle power plant consisting of two gas turbine-generators (GT) of approximately 295 MW capacity (345 MVA, 0.85 p.f.) and a single steam turbine-generator (ST) of approximately 345 MW (405 MVA, 0.85 pf). The gross output is approximately 943 MW with an STS capacity of 850 MW. The maximum gross capacity at an average summer temperature of 15.3 degrees Celsius is 818 MW and the net output is 797 MW.

The anticipated in service date is June 2018 and the commercial operation date is targeted as January 2019.

TFO contacts: AltaLink Management Ltd. Mark Reid (Account Manager) 2611 – 3rd Avenue SE Calgary AB 403-365-7474 [email protected]

AESO Contact: Vladimir Lopez Transmission Project Delivery Alberta Electric System Operator (AESO) 2500, 330 – 5th Avenue SW Calgary, AB T2P 0L4 403-539-2819 [email protected]

4.2.8 Project 1478 Rocky Mountain Power ASSISt – New for 2015 Rocky Mountain Power Inc. submitted a System Access Service Request (SASR) to the AESO on September 4, 2013 proposing the development of a compressed air energy storage (CAES) facility. The project is known as Alberta Saskatchewan Intertie Storage (ASISt) and is located in the planning area (AESO planning area 13). The ASISt project is proposed as a 135 to 160 MW compressed air energy storage project using salt caverns for the energy storage with potential up to 300 MW. The air cavern storage will be designed for 24 to 60 hours of continuous operation at rated capacity. ASISt is planned to connect to a new 240 kV station proposed in the AESO’s Central Region Plan. The ASISt CAES project will be directly connected to the Alberta grid through the planned 240 kV system development in Central East region of Alberta. Part of the design concept is to have a second 230 kV line segment to the Saskatchewan grid for alternate switching to enable connections to the Saskatchewan grid. In addition to energy storage, ASISt is planned to provide a portfolio of ancillary services (while generating or compressing) and special system services such as black start, load following, voltage regulation, etc. and potentially a virtual intertie to Saskatchewan (i.e. the ability to compress from one region while simultaneously generating into the other region). The facility will potentially have the capability to operate as “Power Source” (generating) or as “Power Sink” (compressing). The requested in service date is October 1, 2018.

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AESO Contact: Tana Lailan Project Co-ordinator Alberta Electric System Operator (AESO) 2500, 330 – 5th Avenue SW Calgary, AB T2P 0L4 403-539-2857 [email protected]

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