# Mustang Hills LLC

CAISO Onshore Wind Turbine · https://askthegrid.com/assets/facilities/mustang-hills-llc

Mustang Hills LLC is a wind power facility with 150 MW of EIA-reported operating capacity in Kern County, California, registered as EIA Plant ID 57833. The facility uses V90-3.0 turbines.

## Key facts

- Technology: Onshore Wind Turbine
- Power capacity: 150 MW
- Operating status: operating

## Grid and market context

- ISO/RTO: CAISO
- Balancing authority: CISO

## Source-backed facts

- Identifiers: [{"value":"57833","system":"EIA plant ID"},{"value":"AW06","system":"EIA generator ID"},{"value":"CISO","system":"Balancing authority"},{"value":"CAISO","system":"ISO/RTO power market"},{"value":"Mustang Hills, LLC — LGIA","system":"CAISO interconnection agreement listing"},{"value":"11-59-000","system":"FERC exempt wholesale generator docket"},{"value":"ER11-3416-000","system":"FERC MBR authorization docket"},{"value":"EC23-88-000","system":"FERC Section 203 corporate filing docket"}] — MBR | Lookup Data · confidence: medium
- Official project url: https://www.longroadenergy.com/longroad-energy-awarded-long-term-service-contract-for-everpower-wind-portfolio/ — Longroad Energy Awarded Long-Term Service Contract For EverPower Wind Portfolio - Longroad Energy · confidence: medium
- Parties: [{"relationship":"Owner","name":"Excelsior Energy Capital","official_url":"https://excelsiorcapital.com"},{"relationship":"Registered plant operator","name":"Mustang Hills, LLC (Longroad)","official_url":null},{"relationship":"Operator and asset manager","name":"Longroad Energy Services","official_url":"https://www.longroadenergy.com"},{"relationship":"Historical owner","name":"EverPower Wind Holdings","official_url":null},{"relationship":"Turbine OEM and service provider","name":"Vestas Wind Systems A/S","official_url":"https://www.vestas.com"},{"relationship":"Transmission/distribution owner","name":"Southern California Edison Co.","official_url":"https://www.sce.com"}] — EverPower extends Vestas service | reNEWS · confidence: medium
- Identifiers.6: {"value":"ER11-3416-000","system":"FERC MBR authorization docket"} — MBR | Lookup Data · confidence: medium
- Parties.2: {"relationship":"Operator and asset manager","name":"Longroad Energy Services","official_url":"https://www.longroadenergy.com"} — Longroad Energy Awarded Long-Term Service Contract For EverPower Wind Portfolio - Longroad Energy · confidence: medium
- Parties.3: {"relationship":"Historical owner","name":"EverPower Wind Holdings","official_url":null} — Longroad Energy Awarded Long-Term Service Contract For EverPower Wind Portfolio - Longroad Energy · confidence: high
- Parties.4: {"relationship":"Turbine OEM and service provider","name":"Vestas Wind Systems A/S","official_url":"https://www.vestas.com"} — EverPower extends Vestas service | reNEWS · confidence: medium
- Product url: https://www.vestas.com/en/sustainability/environment/lifecycle-assessments — Life Cycle Assessments · confidence: medium
- Product url: https://www.vestas.com/en/sustainability/environment/lifecycle-assessments — 1 · confidence: medium
- Product family: V90-3.0 MW — Life Cycle Assessments · confidence: high
- Description: Mustang Hills LLC is a 150 MW operating onshore wind plant in Kern County, California, with one EIA generating unit, AW06, and first operation reported on May 1, 2012. The project was developed as Alta Wind VI and sold by Terra-Gen Operating Co. to EverPower Wind Holdings in 2012, after which it was renamed Mustang Hills. Terra Firma later sold EverPower’s 752 MW operating portfolio to a fund managed by BlackRock Real Assets in early 2018. BlackRock subsequently sought authorization to transfer the project to Excelsior Energy Capital; Excelsior’s current portfolio lists Mustang Hills as a 150 MW wind investment. The project has a 24-year power purchase agreement covering its expected output with Southern California Edison. — Terra Firma To Acquire Californian Wind Farm - Terra Firma · confidence: medium
- Description: Mustang Hills LLC is a 150 MW operating onshore wind plant in Kern County, California, with one EIA generating unit, AW06, and first operation reported on May 1, 2012. The project was developed as Alta Wind VI and sold by Terra-Gen Operating Co. to EverPower Wind Holdings in 2012, after which it was renamed Mustang Hills. Terra Firma later sold EverPower’s 752 MW operating portfolio to a fund managed by BlackRock Real Assets in early 2018. BlackRock subsequently sought authorization to transfer the project to Excelsior Energy Capital; Excelsior’s current portfolio lists Mustang Hills as a 150 MW wind investment. The project has a 24-year power purchase agreement covering its expected output with Southern California Edison. — EverPower · confidence: medium
- Description: Mustang Hills LLC is a 150 MW operating onshore wind plant in Kern County, California, with one EIA generating unit, AW06, and first operation reported on May 1, 2012. The project was developed as Alta Wind VI and sold by Terra-Gen Operating Co. to EverPower Wind Holdings in 2012, after which it was renamed Mustang Hills. Terra Firma later sold EverPower’s 752 MW operating portfolio to a fund managed by BlackRock Real Assets in early 2018. BlackRock subsequently sought authorization to transfer the project to Excelsior Energy Capital; Excelsior’s current portfolio lists Mustang Hills as a 150 MW wind investment. The project has a 24-year power purchase agreement covering its expected output with Southern California Edison. — Power plant profile: Mustang Hills Wind Farm, US · confidence: medium
- Quality notes: ["EIA and Vestas records support May 2012 commercial operation; one third-party profile reports 2011, which is inconsistent with the plant-level EIA record and is not used here.","The BlackRock-to-Excelsior transfer is documented through a May 12, 2023 FERC Section 203 filing and Excelsior’s portfolio listing, but the exact closing date and sale consideration were not disclosed in the retrieved public record.","No retirement, expansion, or repowering milestone is recorded in the cited project history; the plant remains listed as a 150 MW operating asset."] — Vestas signs 15-year renewal of 150 MW service... · confidence: medium
- Quality notes: ["EIA and Vestas records support May 2012 commercial operation; one third-party profile reports 2011, which is inconsistent with the plant-level EIA record and is not used here.","The BlackRock-to-Excelsior transfer is documented through a May 12, 2023 FERC Section 203 filing and Excelsior’s portfolio listing, but the exact closing date and sale consideration were not disclosed in the retrieved public record.","No retirement, expansion, or repowering milestone is recorded in the cited project history; the plant remains listed as a 150 MW operating asset."] — Power plant profile: Mustang Hills Wind Farm, US · confidence: medium
- Financing summary: The original Alta VI project financing closed in May 2011 and comprised $318 million of construction, cash-grant bridge, letter-of-credit, and mini-perm facilities. This was project financing, not sale consideration. A later refinancing included a $245 million private placement of 5.15% senior secured notes due November 30, 2035, a $29.462 million secured letter-of-credit facility involving Royal Bank of Scotland and KeyBank, and an $82 million cash-grant bridge loan; the refinancing close date was not stated. Separately, EverPower’s 2012 purchase of Alta VI from Terra-Gen was reported at $439.388 million. — Global Project Finance Practice · confidence: medium
- Financing summary: The original Alta VI project financing closed in May 2011 and comprised $318 million of construction, cash-grant bridge, letter-of-credit, and mini-perm facilities. This was project financing, not sale consideration. A later refinancing included a $245 million private placement of 5.15% senior secured notes due November 30, 2035, a $29.462 million secured letter-of-credit facility involving Royal Bank of Scotland and KeyBank, and an $82 million cash-grant bridge loan; the refinancing close date was not stated. Separately, EverPower’s 2012 purchase of Alta VI from Terra-Gen was reported at $439.388 million. — Global Project Finance Practice - Akin Gump · confidence: medium
- Financing summary: The original Alta VI project financing closed in May 2011 and comprised $318 million of construction, cash-grant bridge, letter-of-credit, and mini-perm facilities. This was project financing, not sale consideration. A later refinancing included a $245 million private placement of 5.15% senior secured notes due November 30, 2035, a $29.462 million secured letter-of-credit facility involving Royal Bank of Scotland and KeyBank, and an $82 million cash-grant bridge loan; the refinancing close date was not stated. Separately, EverPower’s 2012 purchase of Alta VI from Terra-Gen was reported at $439.388 million. — Wind Farm Facilities Awarded Damages for Grant... · confidence: medium
- Timeline: [{"event":"Predecessor development ownership","date":"2008-07","detail":"Terra-Gen acquired Allco’s U.S. wind business, including the Alta Wind projects, while Alta VI was still in development; Terra-Gen continued permitting, contracting, financing, and construction."},{"event":"Construction and project financing","date":"2011-05","detail":"A $318 million package of construction, cash-grant bridge, letter-of-credit, and mini-perm facilities was arranged for the 150 MW Alta Wind VI project."},{"event":"Acquisition agreement","date":"2012-04-02","detail":"EverPower signed an agreement to acquire the 150 MW Alta VI project from Terra-Gen Operating Co., LLC. The project had a 24-year fixed-price PPA covering 100% of expected output and was expected to be fully operational in the second half of 2012."},{"event":"Sale and renaming","date":"2012-05","detail":"The Alta VI project was sold outright by Terra-Gen to EverPower Wind Holdings and renamed Mustang Hills. The reported purchase price was $439.388 million."},{"event":"Commercial operation","date":"2012-05-01","detail":"EIA plant records report the first unit, generator AW06, online on May 1, 2012, at 150 MW."},{"event":"Debt refinancing","date":null,"detail":"A later Mustang Hills refinancing comprised $245 million of 5.15% senior secured notes due 2035, a roughly $29.5 million letter-of-credit facility, and an $82 million cash-grant bridge loan; the exact closing date was not stated."},{"event":"Portfolio sale to BlackRock","date":"2018","detail":"Terra Firma completed the disposal of EverPower’s 752 MW portfolio of operating wind assets to a fund managed by BlackRock Real Assets."},{"event":"Longroad asset-management appointment","date":"2021-03-17","detail":"Longroad Energy Services announced long-term asset-management and operations-oversight agreements for five EverPower projects, including Mustang Hills."},{"event":"Proposed transfer to Excelsior","date":"2023-05-12","detail":"Mustang Hills, LLC filed a FERC Section 203 application seeking authorization associated with the transfer of the project from BlackRock to Excelsior Energy Capital. Public sources reviewed do not state the exact closing month or consideration."},{"event":"Vestas service extension","date":"2017-05-17","detail":"Vestas announced a 15-year extension of its service agreement for Mustang Hills through 2032; the project was described as a 150 MW facility with 50 V90 3 MW turbines commissioned in 2012."}] — Wind Farm Facilities Awarded Damages for Grant Underpayments | Tax Notes · confidence: medium
- Timeline: [{"event":"Predecessor development ownership","date":"2008-07","detail":"Terra-Gen acquired Allco’s U.S. wind business, including the Alta Wind projects, while Alta VI was still in development; Terra-Gen continued permitting, contracting, financing, and construction."},{"event":"Construction and project financing","date":"2011-05","detail":"A $318 million package of construction, cash-grant bridge, letter-of-credit, and mini-perm facilities was arranged for the 150 MW Alta Wind VI project."},{"event":"Acquisition agreement","date":"2012-04-02","detail":"EverPower signed an agreement to acquire the 150 MW Alta VI project from Terra-Gen Operating Co., LLC. The project had a 24-year fixed-price PPA covering 100% of expected output and was expected to be fully operational in the second half of 2012."},{"event":"Sale and renaming","date":"2012-05","detail":"The Alta VI project was sold outright by Terra-Gen to EverPower Wind Holdings and renamed Mustang Hills. The reported purchase price was $439.388 million."},{"event":"Commercial operation","date":"2012-05-01","detail":"EIA plant records report the first unit, generator AW06, online on May 1, 2012, at 150 MW."},{"event":"Debt refinancing","date":null,"detail":"A later Mustang Hills refinancing comprised $245 million of 5.15% senior secured notes due 2035, a roughly $29.5 million letter-of-credit facility, and an $82 million cash-grant bridge loan; the exact closing date was not stated."},{"event":"Portfolio sale to BlackRock","date":"2018","detail":"Terra Firma completed the disposal of EverPower’s 752 MW portfolio of operating wind assets to a fund managed by BlackRock Real Assets."},{"event":"Longroad asset-management appointment","date":"2021-03-17","detail":"Longroad Energy Services announced long-term asset-management and operations-oversight agreements for five EverPower projects, including Mustang Hills."},{"event":"Proposed transfer to Excelsior","date":"2023-05-12","detail":"Mustang Hills, LLC filed a FERC Section 203 application seeking authorization associated with the transfer of the project from BlackRock to Excelsior Energy Capital. Public sources reviewed do not state the exact closing month or consideration."},{"event":"Vestas service extension","date":"2017-05-17","detail":"Vestas announced a 15-year extension of its service agreement for Mustang Hills through 2032; the project was described as a 150 MW facility with 50 V90 3 MW turbines commissioned in 2012."}] — Global Project Finance Practice · confidence: medium
- Timeline: [{"event":"Predecessor development ownership","date":"2008-07","detail":"Terra-Gen acquired Allco’s U.S. wind business, including the Alta Wind projects, while Alta VI was still in development; Terra-Gen continued permitting, contracting, financing, and construction."},{"event":"Construction and project financing","date":"2011-05","detail":"A $318 million package of construction, cash-grant bridge, letter-of-credit, and mini-perm facilities was arranged for the 150 MW Alta Wind VI project."},{"event":"Acquisition agreement","date":"2012-04-02","detail":"EverPower signed an agreement to acquire the 150 MW Alta VI project from Terra-Gen Operating Co., LLC. The project had a 24-year fixed-price PPA covering 100% of expected output and was expected to be fully operational in the second half of 2012."},{"event":"Sale and renaming","date":"2012-05","detail":"The Alta VI project was sold outright by Terra-Gen to EverPower Wind Holdings and renamed Mustang Hills. The reported purchase price was $439.388 million."},{"event":"Commercial operation","date":"2012-05-01","detail":"EIA plant records report the first unit, generator AW06, online on May 1, 2012, at 150 MW."},{"event":"Debt refinancing","date":null,"detail":"A later Mustang Hills refinancing comprised $245 million of 5.15% senior secured notes due 2035, a roughly $29.5 million letter-of-credit facility, and an $82 million cash-grant bridge loan; the exact closing date was not stated."},{"event":"Portfolio sale to BlackRock","date":"2018","detail":"Terra Firma completed the disposal of EverPower’s 752 MW portfolio of operating wind assets to a fund managed by BlackRock Real Assets."},{"event":"Longroad asset-management appointment","date":"2021-03-17","detail":"Longroad Energy Services announced long-term asset-management and operations-oversight agreements for five EverPower projects, including Mustang Hills."},{"event":"Proposed transfer to Excelsior","date":"2023-05-12","detail":"Mustang Hills, LLC filed a FERC Section 203 application seeking authorization associated with the transfer of the project from BlackRock to Excelsior Energy Capital. Public sources reviewed do not state the exact closing month or consideration."},{"event":"Vestas service extension","date":"2017-05-17","detail":"Vestas announced a 15-year extension of its service agreement for Mustang Hills through 2032; the project was described as a 150 MW facility with 50 V90 3 MW turbines commissioned in 2012."}] — Terra Firma To Acquire Californian Wind Farm - Terra Firma · confidence: medium
- Timeline: [{"event":"Predecessor development ownership","date":"2008-07","detail":"Terra-Gen acquired Allco’s U.S. wind business, including the Alta Wind projects, while Alta VI was still in development; Terra-Gen continued permitting, contracting, financing, and construction."},{"event":"Construction and project financing","date":"2011-05","detail":"A $318 million package of construction, cash-grant bridge, letter-of-credit, and mini-perm facilities was arranged for the 150 MW Alta Wind VI project."},{"event":"Acquisition agreement","date":"2012-04-02","detail":"EverPower signed an agreement to acquire the 150 MW Alta VI project from Terra-Gen Operating Co., LLC. The project had a 24-year fixed-price PPA covering 100% of expected output and was expected to be fully operational in the second half of 2012."},{"event":"Sale and renaming","date":"2012-05","detail":"The Alta VI project was sold outright by Terra-Gen to EverPower Wind Holdings and renamed Mustang Hills. The reported purchase price was $439.388 million."},{"event":"Commercial operation","date":"2012-05-01","detail":"EIA plant records report the first unit, generator AW06, online on May 1, 2012, at 150 MW."},{"event":"Debt refinancing","date":null,"detail":"A later Mustang Hills refinancing comprised $245 million of 5.15% senior secured notes due 2035, a roughly $29.5 million letter-of-credit facility, and an $82 million cash-grant bridge loan; the exact closing date was not stated."},{"event":"Portfolio sale to BlackRock","date":"2018","detail":"Terra Firma completed the disposal of EverPower’s 752 MW portfolio of operating wind assets to a fund managed by BlackRock Real Assets."},{"event":"Longroad asset-management appointment","date":"2021-03-17","detail":"Longroad Energy Services announced long-term asset-management and operations-oversight agreements for five EverPower projects, including Mustang Hills."},{"event":"Proposed transfer to Excelsior","date":"2023-05-12","detail":"Mustang Hills, LLC filed a FERC Section 203 application seeking authorization associated with the transfer of the project from BlackRock to Excelsior Energy Capital. Public sources reviewed do not state the exact closing month or consideration."},{"event":"Vestas service extension","date":"2017-05-17","detail":"Vestas announced a 15-year extension of its service agreement for Mustang Hills through 2032; the project was described as a 150 MW facility with 50 V90 3 MW turbines commissioned in 2012."}] — EverPower · confidence: medium
- Timeline: [{"event":"Predecessor development ownership","date":"2008-07","detail":"Terra-Gen acquired Allco’s U.S. wind business, including the Alta Wind projects, while Alta VI was still in development; Terra-Gen continued permitting, contracting, financing, and construction."},{"event":"Construction and project financing","date":"2011-05","detail":"A $318 million package of construction, cash-grant bridge, letter-of-credit, and mini-perm facilities was arranged for the 150 MW Alta Wind VI project."},{"event":"Acquisition agreement","date":"2012-04-02","detail":"EverPower signed an agreement to acquire the 150 MW Alta VI project from Terra-Gen Operating Co., LLC. The project had a 24-year fixed-price PPA covering 100% of expected output and was expected to be fully operational in the second half of 2012."},{"event":"Sale and renaming","date":"2012-05","detail":"The Alta VI project was sold outright by Terra-Gen to EverPower Wind Holdings and renamed Mustang Hills. The reported purchase price was $439.388 million."},{"event":"Commercial operation","date":"2012-05-01","detail":"EIA plant records report the first unit, generator AW06, online on May 1, 2012, at 150 MW."},{"event":"Debt refinancing","date":null,"detail":"A later Mustang Hills refinancing comprised $245 million of 5.15% senior secured notes due 2035, a roughly $29.5 million letter-of-credit facility, and an $82 million cash-grant bridge loan; the exact closing date was not stated."},{"event":"Portfolio sale to BlackRock","date":"2018","detail":"Terra Firma completed the disposal of EverPower’s 752 MW portfolio of operating wind assets to a fund managed by BlackRock Real Assets."},{"event":"Longroad asset-management appointment","date":"2021-03-17","detail":"Longroad Energy Services announced long-term asset-management and operations-oversight agreements for five EverPower projects, including Mustang Hills."},{"event":"Proposed transfer to Excelsior","date":"2023-05-12","detail":"Mustang Hills, LLC filed a FERC Section 203 application seeking authorization associated with the transfer of the project from BlackRock to Excelsior Energy Capital. Public sources reviewed do not state the exact closing month or consideration."},{"event":"Vestas service extension","date":"2017-05-17","detail":"Vestas announced a 15-year extension of its service agreement for Mustang Hills through 2032; the project was described as a 150 MW facility with 50 V90 3 MW turbines commissioned in 2012."}] — Source · confidence: medium
- Timeline: [{"event":"Predecessor development ownership","date":"2008-07","detail":"Terra-Gen acquired Allco’s U.S. wind business, including the Alta Wind projects, while Alta VI was still in development; Terra-Gen continued permitting, contracting, financing, and construction."},{"event":"Construction and project financing","date":"2011-05","detail":"A $318 million package of construction, cash-grant bridge, letter-of-credit, and mini-perm facilities was arranged for the 150 MW Alta Wind VI project."},{"event":"Acquisition agreement","date":"2012-04-02","detail":"EverPower signed an agreement to acquire the 150 MW Alta VI project from Terra-Gen Operating Co., LLC. The project had a 24-year fixed-price PPA covering 100% of expected output and was expected to be fully operational in the second half of 2012."},{"event":"Sale and renaming","date":"2012-05","detail":"The Alta VI project was sold outright by Terra-Gen to EverPower Wind Holdings and renamed Mustang Hills. The reported purchase price was $439.388 million."},{"event":"Commercial operation","date":"2012-05-01","detail":"EIA plant records report the first unit, generator AW06, online on May 1, 2012, at 150 MW."},{"event":"Debt refinancing","date":null,"detail":"A later Mustang Hills refinancing comprised $245 million of 5.15% senior secured notes due 2035, a roughly $29.5 million letter-of-credit facility, and an $82 million cash-grant bridge loan; the exact closing date was not stated."},{"event":"Portfolio sale to BlackRock","date":"2018","detail":"Terra Firma completed the disposal of EverPower’s 752 MW portfolio of operating wind assets to a fund managed by BlackRock Real Assets."},{"event":"Longroad asset-management appointment","date":"2021-03-17","detail":"Longroad Energy Services announced long-term asset-management and operations-oversight agreements for five EverPower projects, including Mustang Hills."},{"event":"Proposed transfer to Excelsior","date":"2023-05-12","detail":"Mustang Hills, LLC filed a FERC Section 203 application seeking authorization associated with the transfer of the project from BlackRock to Excelsior Energy Capital. Public sources reviewed do not state the exact closing month or consideration."},{"event":"Vestas service extension","date":"2017-05-17","detail":"Vestas announced a 15-year extension of its service agreement for Mustang Hills through 2032; the project was described as a 150 MW facility with 50 V90 3 MW turbines commissioned in 2012."}] — Federal Register :: Combined Notice of Filings #1 · confidence: medium
- Timeline: [{"event":"Predecessor development ownership","date":"2008-07","detail":"Terra-Gen acquired Allco’s U.S. wind business, including the Alta Wind projects, while Alta VI was still in development; Terra-Gen continued permitting, contracting, financing, and construction."},{"event":"Construction and project financing","date":"2011-05","detail":"A $318 million package of construction, cash-grant bridge, letter-of-credit, and mini-perm facilities was arranged for the 150 MW Alta Wind VI project."},{"event":"Acquisition agreement","date":"2012-04-02","detail":"EverPower signed an agreement to acquire the 150 MW Alta VI project from Terra-Gen Operating Co., LLC. The project had a 24-year fixed-price PPA covering 100% of expected output and was expected to be fully operational in the second half of 2012."},{"event":"Sale and renaming","date":"2012-05","detail":"The Alta VI project was sold outright by Terra-Gen to EverPower Wind Holdings and renamed Mustang Hills. The reported purchase price was $439.388 million."},{"event":"Commercial operation","date":"2012-05-01","detail":"EIA plant records report the first unit, generator AW06, online on May 1, 2012, at 150 MW."},{"event":"Debt refinancing","date":null,"detail":"A later Mustang Hills refinancing comprised $245 million of 5.15% senior secured notes due 2035, a roughly $29.5 million letter-of-credit facility, and an $82 million cash-grant bridge loan; the exact closing date was not stated."},{"event":"Portfolio sale to BlackRock","date":"2018","detail":"Terra Firma completed the disposal of EverPower’s 752 MW portfolio of operating wind assets to a fund managed by BlackRock Real Assets."},{"event":"Longroad asset-management appointment","date":"2021-03-17","detail":"Longroad Energy Services announced long-term asset-management and operations-oversight agreements for five EverPower projects, including Mustang Hills."},{"event":"Proposed transfer to Excelsior","date":"2023-05-12","detail":"Mustang Hills, LLC filed a FERC Section 203 application seeking authorization associated with the transfer of the project from BlackRock to Excelsior Energy Capital. Public sources reviewed do not state the exact closing month or consideration."},{"event":"Vestas service extension","date":"2017-05-17","detail":"Vestas announced a 15-year extension of its service agreement for Mustang Hills through 2032; the project was described as a 150 MW facility with 50 V90 3 MW turbines commissioned in 2012."}] — Vestas signs 15-year renewal of 150 MW service... · confidence: medium
- Commercial parties: [{"relationship":"Historical seller and predecessor owner","name":"Terra-Gen Operating Co., LLC","detail":"Sold the 150 MW Alta VI project to EverPower in 2012 after developing and constructing the project as part of the Alta Wind Energy Center.","official_url":null},{"relationship":"Acquirer and historical owner","name":"EverPower Wind Holdings","detail":"Signed the April 2012 acquisition agreement, purchased Alta VI from Terra-Gen in May 2012, and renamed it Mustang Hills.","official_url":null},{"relationship":"Historical portfolio owner and seller","name":"Terra Firma","detail":"Owned EverPower and completed the early-2018 disposal of EverPower’s 752 MW operating portfolio to a fund managed by BlackRock Real Assets.","official_url":"https://www.terrafirma.com"},{"relationship":"Portfolio acquirer and subsequent seller","name":"BlackRock Real Assets","detail":"Acquired EverPower’s operating wind portfolio in early 2018 and later sought FERC authorization to transfer Mustang Hills to Excelsior Energy Capital.","official_url":"https://www.blackrock.com"},{"relationship":"Current owner","name":"Excelsior Energy Capital","detail":"Excelsior’s investment portfolio lists Mustang Hills as a 150 MW wind investment; the transfer from BlackRock was the subject of a 2023 FERC Section 203 filing.","official_url":"https://excelsiorcapital.com"},{"relationship":"Registered plant operator","name":"Mustang Hills, LLC","detail":"The EIA plant entity and registered operating company for EIA plant 57833, with generator AW06 rated at 150 MW.","official_url":null},{"relationship":"Operator and asset manager","name":"Longroad Energy Services","detail":"Announced long-term asset-management and operations-oversight services for Mustang Hills as part of the EverPower wind portfolio.","official_url":"https://www.longroadenergy.com"},{"relationship":"Turbine OEM and service provider","name":"Vestas Wind Systems A/S","detail":"Supplied the project’s V90-3.0 MW turbines and extended the Mustang Hills service agreement through 2032.","official_url":"https://www.vestas.com"},{"relationship":"Power purchaser and transmission counterpart","name":"Southern California Edison Co.","detail":"Purchases the project’s output under a 24-year PPA; plant records identify SCE as the transmission/distribution owner and the interconnection voltage as 230 kV.","official_url":"https://www.sce.com"},{"relationship":"Letter-of-credit facility lender","name":"The Royal Bank of Scotland plc","detail":"Participated in the approximately $29.462 million secured letter-of-credit facilities associated with Mustang Hills’ refinancing.","official_url":"https://www.rbs.com"},{"relationship":"Letter-of-credit facility lender","name":"KeyBank National Association","detail":"Participated with Royal Bank of Scotland in the approximately $29.462 million secured letter-of-credit facilities associated with Mustang Hills’ refinancing.","official_url":"https://www.key.com"}] — Terra Firma To Acquire Californian Wind Farm - Terra Firma · confidence: medium
- Commercial parties: [{"relationship":"Historical seller and predecessor owner","name":"Terra-Gen Operating Co., LLC","detail":"Sold the 150 MW Alta VI project to EverPower in 2012 after developing and constructing the project as part of the Alta Wind Energy Center.","official_url":null},{"relationship":"Acquirer and historical owner","name":"EverPower Wind Holdings","detail":"Signed the April 2012 acquisition agreement, purchased Alta VI from Terra-Gen in May 2012, and renamed it Mustang Hills.","official_url":null},{"relationship":"Historical portfolio owner and seller","name":"Terra Firma","detail":"Owned EverPower and completed the early-2018 disposal of EverPower’s 752 MW operating portfolio to a fund managed by BlackRock Real Assets.","official_url":"https://www.terrafirma.com"},{"relationship":"Portfolio acquirer and subsequent seller","name":"BlackRock Real Assets","detail":"Acquired EverPower’s operating wind portfolio in early 2018 and later sought FERC authorization to transfer Mustang Hills to Excelsior Energy Capital.","official_url":"https://www.blackrock.com"},{"relationship":"Current owner","name":"Excelsior Energy Capital","detail":"Excelsior’s investment portfolio lists Mustang Hills as a 150 MW wind investment; the transfer from BlackRock was the subject of a 2023 FERC Section 203 filing.","official_url":"https://excelsiorcapital.com"},{"relationship":"Registered plant operator","name":"Mustang Hills, LLC","detail":"The EIA plant entity and registered operating company for EIA plant 57833, with generator AW06 rated at 150 MW.","official_url":null},{"relationship":"Operator and asset manager","name":"Longroad Energy Services","detail":"Announced long-term asset-management and operations-oversight services for Mustang Hills as part of the EverPower wind portfolio.","official_url":"https://www.longroadenergy.com"},{"relationship":"Turbine OEM and service provider","name":"Vestas Wind Systems A/S","detail":"Supplied the project’s V90-3.0 MW turbines and extended the Mustang Hills service agreement through 2032.","official_url":"https://www.vestas.com"},{"relationship":"Power purchaser and transmission counterpart","name":"Southern California Edison Co.","detail":"Purchases the project’s output under a 24-year PPA; plant records identify SCE as the transmission/distribution owner and the interconnection voltage as 230 kV.","official_url":"https://www.sce.com"},{"relationship":"Letter-of-credit facility lender","name":"The Royal Bank of Scotland plc","detail":"Participated in the approximately $29.462 million secured letter-of-credit facilities associated with Mustang Hills’ refinancing.","official_url":"https://www.rbs.com"},{"relationship":"Letter-of-credit facility lender","name":"KeyBank National Association","detail":"Participated with Royal Bank of Scotland in the approximately $29.462 million secured letter-of-credit facilities associated with Mustang Hills’ refinancing.","official_url":"https://www.key.com"}] — EverPower - Terra Firma · confidence: medium
- Commercial parties: [{"relationship":"Historical seller and predecessor owner","name":"Terra-Gen Operating Co., LLC","detail":"Sold the 150 MW Alta VI project to EverPower in 2012 after developing and constructing the project as part of the Alta Wind Energy Center.","official_url":null},{"relationship":"Acquirer and historical owner","name":"EverPower Wind Holdings","detail":"Signed the April 2012 acquisition agreement, purchased Alta VI from Terra-Gen in May 2012, and renamed it Mustang Hills.","official_url":null},{"relationship":"Historical portfolio owner and seller","name":"Terra Firma","detail":"Owned EverPower and completed the early-2018 disposal of EverPower’s 752 MW operating portfolio to a fund managed by BlackRock Real Assets.","official_url":"https://www.terrafirma.com"},{"relationship":"Portfolio acquirer and subsequent seller","name":"BlackRock Real Assets","detail":"Acquired EverPower’s operating wind portfolio in early 2018 and later sought FERC authorization to transfer Mustang Hills to Excelsior Energy Capital.","official_url":"https://www.blackrock.com"},{"relationship":"Current owner","name":"Excelsior Energy Capital","detail":"Excelsior’s investment portfolio lists Mustang Hills as a 150 MW wind investment; the transfer from BlackRock was the subject of a 2023 FERC Section 203 filing.","official_url":"https://excelsiorcapital.com"},{"relationship":"Registered plant operator","name":"Mustang Hills, LLC","detail":"The EIA plant entity and registered operating company for EIA plant 57833, with generator AW06 rated at 150 MW.","official_url":null},{"relationship":"Operator and asset manager","name":"Longroad Energy Services","detail":"Announced long-term asset-management and operations-oversight services for Mustang Hills as part of the EverPower wind portfolio.","official_url":"https://www.longroadenergy.com"},{"relationship":"Turbine OEM and service provider","name":"Vestas Wind Systems A/S","detail":"Supplied the project’s V90-3.0 MW turbines and extended the Mustang Hills service agreement through 2032.","official_url":"https://www.vestas.com"},{"relationship":"Power purchaser and transmission counterpart","name":"Southern California Edison Co.","detail":"Purchases the project’s output under a 24-year PPA; plant records identify SCE as the transmission/distribution owner and the interconnection voltage as 230 kV.","official_url":"https://www.sce.com"},{"relationship":"Letter-of-credit facility lender","name":"The Royal Bank of Scotland plc","detail":"Participated in the approximately $29.462 million secured letter-of-credit facilities associated with Mustang Hills’ refinancing.","official_url":"https://www.rbs.com"},{"relationship":"Letter-of-credit facility lender","name":"KeyBank National Association","detail":"Participated with Royal Bank of Scotland in the approximately $29.462 million secured letter-of-credit facilities associated with Mustang Hills’ refinancing.","official_url":"https://www.key.com"}] — U.S. Renewable Power Monthly Market Update · confidence: medium
- Commercial parties: [{"relationship":"Historical seller and predecessor owner","name":"Terra-Gen Operating Co., LLC","detail":"Sold the 150 MW Alta VI project to EverPower in 2012 after developing and constructing the project as part of the Alta Wind Energy Center.","official_url":null},{"relationship":"Acquirer and historical owner","name":"EverPower Wind Holdings","detail":"Signed the April 2012 acquisition agreement, purchased Alta VI from Terra-Gen in May 2012, and renamed it Mustang Hills.","official_url":null},{"relationship":"Historical portfolio owner and seller","name":"Terra Firma","detail":"Owned EverPower and completed the early-2018 disposal of EverPower’s 752 MW operating portfolio to a fund managed by BlackRock Real Assets.","official_url":"https://www.terrafirma.com"},{"relationship":"Portfolio acquirer and subsequent seller","name":"BlackRock Real Assets","detail":"Acquired EverPower’s operating wind portfolio in early 2018 and later sought FERC authorization to transfer Mustang Hills to Excelsior Energy Capital.","official_url":"https://www.blackrock.com"},{"relationship":"Current owner","name":"Excelsior Energy Capital","detail":"Excelsior’s investment portfolio lists Mustang Hills as a 150 MW wind investment; the transfer from BlackRock was the subject of a 2023 FERC Section 203 filing.","official_url":"https://excelsiorcapital.com"},{"relationship":"Registered plant operator","name":"Mustang Hills, LLC","detail":"The EIA plant entity and registered operating company for EIA plant 57833, with generator AW06 rated at 150 MW.","official_url":null},{"relationship":"Operator and asset manager","name":"Longroad Energy Services","detail":"Announced long-term asset-management and operations-oversight services for Mustang Hills as part of the EverPower wind portfolio.","official_url":"https://www.longroadenergy.com"},{"relationship":"Turbine OEM and service provider","name":"Vestas Wind Systems A/S","detail":"Supplied the project’s V90-3.0 MW turbines and extended the Mustang Hills service agreement through 2032.","official_url":"https://www.vestas.com"},{"relationship":"Power purchaser and transmission counterpart","name":"Southern California Edison Co.","detail":"Purchases the project’s output under a 24-year PPA; plant records identify SCE as the transmission/distribution owner and the interconnection voltage as 230 kV.","official_url":"https://www.sce.com"},{"relationship":"Letter-of-credit facility lender","name":"The Royal Bank of Scotland plc","detail":"Participated in the approximately $29.462 million secured letter-of-credit facilities associated with Mustang Hills’ refinancing.","official_url":"https://www.rbs.com"},{"relationship":"Letter-of-credit facility lender","name":"KeyBank National Association","detail":"Participated with Royal Bank of Scotland in the approximately $29.462 million secured letter-of-credit facilities associated with Mustang Hills’ refinancing.","official_url":"https://www.key.com"}] — Vestas signs 15-year renewal of 150 MW service... · confidence: medium
- Commercial parties: [{"relationship":"Historical seller and predecessor owner","name":"Terra-Gen Operating Co., LLC","detail":"Sold the 150 MW Alta VI project to EverPower in 2012 after developing and constructing the project as part of the Alta Wind Energy Center.","official_url":null},{"relationship":"Acquirer and historical owner","name":"EverPower Wind Holdings","detail":"Signed the April 2012 acquisition agreement, purchased Alta VI from Terra-Gen in May 2012, and renamed it Mustang Hills.","official_url":null},{"relationship":"Historical portfolio owner and seller","name":"Terra Firma","detail":"Owned EverPower and completed the early-2018 disposal of EverPower’s 752 MW operating portfolio to a fund managed by BlackRock Real Assets.","official_url":"https://www.terrafirma.com"},{"relationship":"Portfolio acquirer and subsequent seller","name":"BlackRock Real Assets","detail":"Acquired EverPower’s operating wind portfolio in early 2018 and later sought FERC authorization to transfer Mustang Hills to Excelsior Energy Capital.","official_url":"https://www.blackrock.com"},{"relationship":"Current owner","name":"Excelsior Energy Capital","detail":"Excelsior’s investment portfolio lists Mustang Hills as a 150 MW wind investment; the transfer from BlackRock was the subject of a 2023 FERC Section 203 filing.","official_url":"https://excelsiorcapital.com"},{"relationship":"Registered plant operator","name":"Mustang Hills, LLC","detail":"The EIA plant entity and registered operating company for EIA plant 57833, with generator AW06 rated at 150 MW.","official_url":null},{"relationship":"Operator and asset manager","name":"Longroad Energy Services","detail":"Announced long-term asset-management and operations-oversight services for Mustang Hills as part of the EverPower wind portfolio.","official_url":"https://www.longroadenergy.com"},{"relationship":"Turbine OEM and service provider","name":"Vestas Wind Systems A/S","detail":"Supplied the project’s V90-3.0 MW turbines and extended the Mustang Hills service agreement through 2032.","official_url":"https://www.vestas.com"},{"relationship":"Power purchaser and transmission counterpart","name":"Southern California Edison Co.","detail":"Purchases the project’s output under a 24-year PPA; plant records identify SCE as the transmission/distribution owner and the interconnection voltage as 230 kV.","official_url":"https://www.sce.com"},{"relationship":"Letter-of-credit facility lender","name":"The Royal Bank of Scotland plc","detail":"Participated in the approximately $29.462 million secured letter-of-credit facilities associated with Mustang Hills’ refinancing.","official_url":"https://www.rbs.com"},{"relationship":"Letter-of-credit facility lender","name":"KeyBank National Association","detail":"Participated with Royal Bank of Scotland in the approximately $29.462 million secured letter-of-credit facilities associated with Mustang Hills’ refinancing.","official_url":"https://www.key.com"}] — Power plant profile: Mustang Hills Wind Farm, US · confidence: medium
- Commercial parties.0: {"relationship":"Historical seller and predecessor owner","name":"Terra-Gen Operating Co., LLC","detail":"Sold the 150 MW Alta VI project to EverPower in 2012 after developing and constructing the project as part of the Alta Wind Energy Center.","official_url":null} — Terra Firma To Acquire Californian Wind Farm - Terra Firma · confidence: medium
- Commercial parties.0: {"relationship":"Historical seller and predecessor owner","name":"Terra-Gen Operating Co., LLC","detail":"Sold the 150 MW Alta VI project to EverPower in 2012 after developing and constructing the project as part of the Alta Wind Energy Center.","official_url":null} — Wind Farm Facilities Awarded Damages for Grant Underpayments | Tax Notes · confidence: medium
- Commercial parties.0: {"relationship":"Historical seller and predecessor owner","name":"Terra-Gen Operating Co., LLC","detail":"Sold the 150 MW Alta VI project to EverPower in 2012 after developing and constructing the project as part of the Alta Wind Energy Center.","official_url":null} — Global Project Finance Practice · confidence: medium
- Commercial parties.1: {"relationship":"Acquirer and historical owner","name":"EverPower Wind Holdings","detail":"Signed the April 2012 acquisition agreement, purchased Alta VI from Terra-Gen in May 2012, and renamed it Mustang Hills.","official_url":null} — Terra Firma To Acquire Californian Wind Farm - Terra Firma · confidence: medium
- Commercial parties.1: {"relationship":"Acquirer and historical owner","name":"EverPower Wind Holdings","detail":"Signed the April 2012 acquisition agreement, purchased Alta VI from Terra-Gen in May 2012, and renamed it Mustang Hills.","official_url":null} — EverPower - Terra Firma · confidence: medium
- Commercial parties.2: {"relationship":"Historical portfolio owner and seller","name":"Terra Firma","detail":"Owned EverPower and completed the early-2018 disposal of EverPower’s 752 MW operating portfolio to a fund managed by BlackRock Real Assets.","official_url":"https://www.terrafirma.com"} — EverPower - Terra Firma · confidence: high
- Commercial parties.3: {"relationship":"Portfolio acquirer and subsequent seller","name":"BlackRock Real Assets","detail":"Acquired EverPower’s operating wind portfolio in early 2018 and later sought FERC authorization to transfer Mustang Hills to Excelsior Energy Capital.","official_url":"https://www.blackrock.com"} — EverPower · confidence: medium
- Commercial parties.3: {"relationship":"Portfolio acquirer and subsequent seller","name":"BlackRock Real Assets","detail":"Acquired EverPower’s operating wind portfolio in early 2018 and later sought FERC authorization to transfer Mustang Hills to Excelsior Energy Capital.","official_url":"https://www.blackrock.com"} — U.S. Renewable Power Monthly Market Update · confidence: medium
- Commercial parties.4: {"relationship":"Current owner","name":"Excelsior Energy Capital","detail":"Excelsior’s investment portfolio lists Mustang Hills as a 150 MW wind investment; the transfer from BlackRock was the subject of a 2023 FERC Section 203 filing.","official_url":"https://excelsiorcapital.com"} — U.S. Renewable Power Monthly Market Update · confidence: medium
- Commercial parties.7: {"relationship":"Turbine OEM and service provider","name":"Vestas Wind Systems A/S","detail":"Supplied the project’s V90-3.0 MW turbines and extended the Mustang Hills service agreement through 2032.","official_url":"https://www.vestas.com"} — Vestas signs 15-year renewal of 150 MW service... · confidence: high
- Commercial parties.8: {"relationship":"Power purchaser and transmission counterpart","name":"Southern California Edison Co.","detail":"Purchases the project’s output under a 24-year PPA; plant records identify SCE as the transmission/distribution owner and the interconnection voltage as 230 kV.","official_url":"https://www.sce.com"} — Power plant profile: Mustang Hills Wind Farm, US · confidence: high
- Acquisition date: 2023 — U.S. Renewable Power Monthly Market Update · confidence: medium
- Seller: BlackRock (fund managed by BlackRock Real Assets) — U.S. Renewable Power Monthly Market Update · confidence: medium
- Acquirer: Excelsior Energy Capital — U.S. Renewable Power Monthly Market Update · confidence: medium
- Transaction scope: exact_asset — U.S. Renewable Power Monthly Market Update · confidence: medium

## Timeline

- 2011-05 — Construction and project financing
  A $318 million package of construction, cash-grant bridge, letter-of-credit, and mini-perm facilities was arranged for the 150 MW Alta Wind VI project.
  Source: Global Project Finance Practice (https://www.akingump.com/a/web/28383/2014-Global-Project-Finance-3-24-14.pdf)
- 2012-04-02 — Acquisition agreement
  EverPower signed an agreement to acquire the 150 MW Alta VI project from Terra-Gen Operating Co., LLC. The project had a 24-year fixed-price PPA covering 100% of expected output and was expected to be fully operational in the second half of 2012.
  Source: Terra Firma To Acquire Californian Wind Farm - Terra Firma (https://www.terrafirma.com/news/terra-firma-to-acquire-californian-wind-farm/)
- 2021-03-17 — Longroad asset-management appointment
  Longroad Energy Services announced long-term asset-management and operations-oversight agreements for five EverPower projects, including Mustang Hills.
  Source: Source (https://longroadenergy.com/longroad-energy-awarded-long-term-service-contract-for-everpower-wind-portfolio)

## Sources

- [MBR | Lookup Data](https://mbrweb.ferc.gov/LookupData/Index/mbr_authorizations?page=26) — mbrweb.ferc.gov · tier regulatory
- [Federal Register :: Combined Notice of Filings #1](https://www.federalregister.gov/documents/2023/05/19/2023-10754/combined-notice-of-filings-1) — federalregister.gov · tier regulatory
- [Longroad Energy Awarded Long-Term Service Contract For EverPower Wind Portfolio - Longroad Energy](https://www.longroadenergy.com/longroad-energy-awarded-long-term-service-contract-for-everpower-wind-portfolio/) — longroadenergy.com · tier other
- [EverPower extends Vestas service | reNEWS](https://www.renews.biz/onshore-wind/everpower-extends-vestas-service/) — renews.biz · tier other
- [Mustang Hills Wind Generation Facility-VE249 Repair Project (Western Joshua Tree Conservation Act (WJTCA) Incidental Take Permit No. 1927-ITP-2025-058-04 (ITP))](https://ceqanet.lci.ca.gov/2008121044/37) — ceqanet.lci.ca.gov · tier regulatory
- [Life Cycle Assessments](https://www.vestas.com/en/sustainability/environment/lifecycle-assessments) — vestas.com · tier other
- [1](https://www.vestas.com/content/dam/vestas-com/global/en/sustainability/reports-and-ratings/lcas/LCA_V903MW_version_1_1.pdf.coredownload.inline.pdf) — vestas.com · tier other
- [Wind Farm Facilities Awarded Damages for Grant Underpayments | Tax Notes](https://www.taxnotes.com/research/federal/court-documents/court-opinions-and-orders/wind-farm-facilities-awarded-damages-for-grant-underpayments/1l2ws) — taxnotes.com · tier other
- [Terra Firma To Acquire Californian Wind Farm - Terra Firma](https://www.terrafirma.com/news/terra-firma-to-acquire-californian-wind-farm/) — terrafirma.com · tier other
- [EverPower - Terra Firma](https://www.terrafirma.com/portfolio/everpower/) — terrafirma.com · tier other
- [Power plant profile: Mustang Hills Wind Farm, US](https://www.power-technology.com/data-insights/power-plant-profile-mustang-hills-wind-farm-us/) — power-technology.com · tier other
- [Vestas signs 15-year renewal of 150 MW service ...](https://www.vestas.com/en/media/company-news/2017/vestas-signs-15-year-renewal-of-150-mw-service-agreemen-c2963619) — vestas.com · tier other
- [Global Project Finance Practice](https://www.akingump.com/a/web/28383/2014-Global-Project-Finance-3-24-14.pdf) — akingump.com · tier other
- [Global Project Finance Practice - Akin Gump](https://www.akingump.com/a/web/57767/Global-Project-Finance-060616.pdf) — akingump.com · tier other
- [Source](https://longroadenergy.com/longroad-energy-awarded-long-term-service-contract-for-everpower-wind-portfolio) — longroadenergy.com · tier other
- [U.S. Renewable Power Monthly Market Update](https://a.storyblok.com/f/202705/x/ebaf162a05/nomura-greentech-u-s-renewable-power-monthly_may_2023.pdf) — a.storyblok.com · tier other
- [Mustang Hills Wind Facility — Camas Environmental Professionals](https://www.camasllc.com/mustang-hills-wind-facility) — camasllc.com · tier other
- [Source](https://renews.biz/onshore-wind/everpower-extends-vestas-service) — renews.biz · tier other

## Data quality

- The BlackRock-to-Excelsior transfer is documented through a May 12, 2023 FERC Section 203 filing and Excelsior’s portfolio listing, but the exact closing date and sale consideration were not disclosed in the retrieved public record. No retirement, expansion, or repowering milestone is recorded in the cited project history; the plant remains listed as a 150 MW operating asset.

---

Canonical page: https://askthegrid.com/assets/facilities/mustang-hills-llc

Source: Ask the Grid — https://askthegrid.com/