# Alta Wind VIII CAISO Onshore Wind Turbine · https://askthegrid.com/assets/facilities/alta-wind-viii Alta Wind VIII is a wind power facility with 150 MW of EIA-reported operating capacity in Kern County, California, registered as EIA Plant ID 57835. The facility interconnects at Windhub Substation at 220 kV. ## Key facts - Technology: Onshore Wind Turbine - Power capacity: 150 MW - Operating status: operating ## Grid and market context - ISO/RTO: CAISO - Balancing authority: CISO - Substation: Windhub Substation - Point of interconnection: Windhub Substation - Transmission owner: Southern California Edison Company - Interconnection voltage: 220 kV ## Source-backed facts - Identifiers: [{"value":"57835","system":"EIA plant ID"},{"value":"AW08","system":"EIA generator ID"},{"value":"CAISO","system":"ISO/RTO"},{"value":"CISO","system":"Balancing authority"},{"value":"W0393","system":"CAISO resource ID"},{"value":"LGIA — Alta Wind VIII, LLC","system":"CAISO interconnection agreement"},{"value":"EL10-62-000","system":"FERC docket"}] — qfer eia caiso · confidence: medium - Description: Alta Wind VIII is an operational 150 MW onshore wind plant in Kern County, California. The plant has one generating unit, identified by EIA as AW08, which entered service in January 2012. It is operated by NextEra Energy Resources and is interconnected within the CAISO balancing area. — NextEra Energy Partners Generation Portfolio_9302021.xlsx · confidence: medium - Identifiers.4: {"value":"W0393","system":"CAISO resource ID"} — qfer eia caiso · confidence: high - Parties.0: {"relationship":"Owner / portfolio owner","name":"NextEra Energy Partners, LP","official_url":"https://www.investor.xplrinfrastructure.com/"} — NextEra Energy Partners, LP completes acquisition of previously announced approximately 400-megawatt portfolio of long-term contracted wind assets – XPLR Infrastructure, LP · confidence: medium - Product url: https://www.vestas.com/content/dam/vestas-com/global/en/sustainability/reports-and-ratings/lcas/LCA_V903MW_version_1_1.pdf.coredownload.inline.pdf — 1 · confidence: medium - Description: Alta Wind VIII is an operational 150 MW onshore wind plant in Kern County, California, with one EIA generating unit, AW08, placed in service in January 2012. The plant is interconnected in the CAISO balancing area and is operated by NextEra Energy Resources. Terra-Gen developed the Alta phases and sold Alta Wind VIII to Brookfield in January 2012. NextEra Energy Partners acquired it from Brookfield in August 2021 as part of a four-facility, 391 MW portfolio. — GLOBAL PROJECT FINANCE PRACTICE · confidence: medium - Quality notes: ["The $733 million figure was the base purchase price for the unlevered 391 MW, four-facility portfolio acquired by NextEra Energy Partners; it was not disclosed as Alta Wind VIII’s standalone sale price.","The $313 million figure relates to Alta Wind VIII project financing arranged in May 2011, including construction, cash-grant bridge, letter-of-credit and mini-perm facilities; it is distinct from the later portfolio acquisition price.","The cited record does not disclose standalone consideration for Terra-Gen’s January 2012 sale of Alta Wind VIII to Brookfield.","No expansion, retirement or repowering milestone is identified in the cited record; the 2021 acquisition release refers to repowering only as potential future optionality."] — Source · confidence: medium - Quality notes: ["The $733 million figure was the base purchase price for the unlevered 391 MW, four-facility portfolio acquired by NextEra Energy Partners; it was not disclosed as Alta Wind VIII’s standalone sale price.","The $313 million figure relates to Alta Wind VIII project financing arranged in May 2011, including construction, cash-grant bridge, letter-of-credit and mini-perm facilities; it is distinct from the later portfolio acquisition price.","The cited record does not disclose standalone consideration for Terra-Gen’s January 2012 sale of Alta Wind VIII to Brookfield.","No expansion, retirement or repowering milestone is identified in the cited record; the 2021 acquisition release refers to repowering only as potential future optionality."] — GLOBAL PROJECT FINANCE PRACTICE · confidence: medium - Quality notes: ["The $733 million figure was the base purchase price for the unlevered 391 MW, four-facility portfolio acquired by NextEra Energy Partners; it was not disclosed as Alta Wind VIII’s standalone sale price.","The $313 million figure relates to Alta Wind VIII project financing arranged in May 2011, including construction, cash-grant bridge, letter-of-credit and mini-perm facilities; it is distinct from the later portfolio acquisition price.","The cited record does not disclose standalone consideration for Terra-Gen’s January 2012 sale of Alta Wind VIII to Brookfield.","No expansion, retirement or repowering milestone is identified in the cited record; the 2021 acquisition release refers to repowering only as potential future optionality."] — NextEra Energy Partners, LP completes acquisition of... · confidence: medium - Financing summary: In May 2011, Alta Wind VIII had $313 million of construction, cash-grant bridge, letter-of-credit and mini-perm project-financing facilities arranged while the project was being developed by Terra-Gen Power. Separately, on April 19, 2021, NextEra Energy Partners agreed to acquire the unlevered four-asset, 391 MW portfolio from Brookfield Renewable for a base purchase price of $733 million, subject to closing adjustments. NextEra said it planned to fund that portfolio acquisition with undrawn proceeds from its 2020 convertible equity portfolio financing and existing debt capacity; the $733 million was portfolio sale consideration, not Alta Wind VIII project financing. — GLOBAL PROJECT FINANCE PRACTICE · confidence: medium - Financing summary: In May 2011, Alta Wind VIII had $313 million of construction, cash-grant bridge, letter-of-credit and mini-perm project-financing facilities arranged while the project was being developed by Terra-Gen Power. Separately, on April 19, 2021, NextEra Energy Partners agreed to acquire the unlevered four-asset, 391 MW portfolio from Brookfield Renewable for a base purchase price of $733 million, subject to closing adjustments. NextEra said it planned to fund that portfolio acquisition with undrawn proceeds from its 2020 convertible equity portfolio financing and existing debt capacity; the $733 million was portfolio sale consideration, not Alta Wind VIII project financing. — Source · confidence: medium - Timeline: [{"event":"Interconnection agreement","date":"2010-04-29","detail":"The CAISO large-generator interconnection agreement for Alta Windpower Development, Alta Wind IV, Alta Wind V and Alta Wind VIII, with Southern California Edison and CAISO, had an effective date of April 29, 2010."},{"event":"FERC transmission-rights petition","date":"2010-05-03","detail":"Alta Wind VIII, Alta Windpower Development and related Alta entities petitioned FERC for confirmation of firm priority transmission rights for planned generation interconnection."},{"event":"Project financing","date":"2011-05","detail":"Terra-Gen arranged $313 million of construction, cash-grant bridge, letter-of-credit and mini-perm facilities for the 150 MW Alta Wind VIII project."},{"event":"Commercial operation","date":"2012-01","detail":"EIA-derived plant records identify Alta Wind VIII’s single AW08 generating unit as entering service in January 2012."},{"event":"Sale to Brookfield","date":"2012-01","detail":"Project-finance transaction records identify the sale of the 150 MW Alta Wind VIII project by its predecessor developer, Terra-Gen, to Brookfield in January 2012."},{"event":"Definitive portfolio acquisition agreement","date":"2021-04-19","detail":"NextEra Energy Partners announced an agreement with Brookfield Renewable to acquire a 391 MW portfolio containing Alta Wind VIII for a $733 million base purchase price, subject to closing adjustments."},{"event":"Portfolio acquisition completed","date":"2021-08-25","detail":"NextEra Energy Partners completed the acquisition of the four operating wind facilities, including Alta Wind VIII."}] — GLOBAL PROJECT FINANCE PRACTICE · confidence: medium - Timeline: [{"event":"Interconnection agreement","date":"2010-04-29","detail":"The CAISO large-generator interconnection agreement for Alta Windpower Development, Alta Wind IV, Alta Wind V and Alta Wind VIII, with Southern California Edison and CAISO, had an effective date of April 29, 2010."},{"event":"FERC transmission-rights petition","date":"2010-05-03","detail":"Alta Wind VIII, Alta Windpower Development and related Alta entities petitioned FERC for confirmation of firm priority transmission rights for planned generation interconnection."},{"event":"Project financing","date":"2011-05","detail":"Terra-Gen arranged $313 million of construction, cash-grant bridge, letter-of-credit and mini-perm facilities for the 150 MW Alta Wind VIII project."},{"event":"Commercial operation","date":"2012-01","detail":"EIA-derived plant records identify Alta Wind VIII’s single AW08 generating unit as entering service in January 2012."},{"event":"Sale to Brookfield","date":"2012-01","detail":"Project-finance transaction records identify the sale of the 150 MW Alta Wind VIII project by its predecessor developer, Terra-Gen, to Brookfield in January 2012."},{"event":"Definitive portfolio acquisition agreement","date":"2021-04-19","detail":"NextEra Energy Partners announced an agreement with Brookfield Renewable to acquire a 391 MW portfolio containing Alta Wind VIII for a $733 million base purchase price, subject to closing adjustments."},{"event":"Portfolio acquisition completed","date":"2021-08-25","detail":"NextEra Energy Partners completed the acquisition of the four operating wind facilities, including Alta Wind VIII."}] — NextEra Energy Partners, LP announces definitive agreement to acquire an approximately 400-megawatt portfolio of long-term contracted wind assets – XPLR Infrastructure, LP · confidence: medium - Timeline: [{"event":"Interconnection agreement","date":"2010-04-29","detail":"The CAISO large-generator interconnection agreement for Alta Windpower Development, Alta Wind IV, Alta Wind V and Alta Wind VIII, with Southern California Edison and CAISO, had an effective date of April 29, 2010."},{"event":"FERC transmission-rights petition","date":"2010-05-03","detail":"Alta Wind VIII, Alta Windpower Development and related Alta entities petitioned FERC for confirmation of firm priority transmission rights for planned generation interconnection."},{"event":"Project financing","date":"2011-05","detail":"Terra-Gen arranged $313 million of construction, cash-grant bridge, letter-of-credit and mini-perm facilities for the 150 MW Alta Wind VIII project."},{"event":"Commercial operation","date":"2012-01","detail":"EIA-derived plant records identify Alta Wind VIII’s single AW08 generating unit as entering service in January 2012."},{"event":"Sale to Brookfield","date":"2012-01","detail":"Project-finance transaction records identify the sale of the 150 MW Alta Wind VIII project by its predecessor developer, Terra-Gen, to Brookfield in January 2012."},{"event":"Definitive portfolio acquisition agreement","date":"2021-04-19","detail":"NextEra Energy Partners announced an agreement with Brookfield Renewable to acquire a 391 MW portfolio containing Alta Wind VIII for a $733 million base purchase price, subject to closing adjustments."},{"event":"Portfolio acquisition completed","date":"2021-08-25","detail":"NextEra Energy Partners completed the acquisition of the four operating wind facilities, including Alta Wind VIII."}] — NextEra Energy Partners, LP completes acquisition of... · confidence: medium - Commercial parties.1: {"relationship":"Predecessor developer and seller","name":"Terra-Gen Power, LLC","detail":"Developed the Alta phases and is identified in project-finance records as the predecessor associated with the January 2012 sale of Alta Wind VIII to Brookfield.","official_url":"https://terra-gen.com/"} — GLOBAL PROJECT FINANCE PRACTICE · confidence: medium - Commercial parties.2: {"relationship":"Prior owner and 2021 portfolio seller","name":"Brookfield Renewable","detail":"Acquired Alta Wind VIII from Terra-Gen in January 2012 and agreed in April 2021 to sell the portfolio containing Alta Wind VIII to NextEra Energy Partners.","official_url":"https://bep.brookfield.com/"} — NextEra Energy Partners, LP announces definitive agreement to acquire an approximately 400-megawatt portfolio of long-term contracted wind assets – XPLR Infrastructure, LP · confidence: high ## Timeline - 2010-04-29 — Interconnection agreement The CAISO large-generator interconnection agreement for Alta Windpower Development, Alta Wind IV, Alta Wind V and Alta Wind VIII, with Southern California Edison and CAISO, had an effective date of April 29, 2010. Source: Source (https://www.caiso.com/documents/august5_2010lgiabetweeniso_sce_andaltaentitiesindocketno_er10-2122-000.pdf) - 2010-05-03 — FERC transmission-rights petition Alta Wind VIII, Alta Windpower Development and related Alta entities petitioned FERC for confirmation of firm priority transmission rights for planned generation interconnection. Source: Federal Register :: Alta Wind I, LLC; Alta Wind II, LLC; Alta Wind III, LLC; Alta Wind IV, LLC; Alta Wind V, LLC; Alta Wind VI, LLC; Alta Wind VII, LLC; Alta Wind VIII, LLC; Alta Windpower Development, LLC; TGP Development Company, LLC; Notice of Petition for Declaratory Order (https://www.federalregister.gov/documents/2010/05/03/2010-10218/alta-wind-i-llc-alta-wind-ii-llc-alta-wind-iii-llc-alta-wind-iv-llc-alta-wind-v-llc) - 2011-05 — Project financing Terra-Gen arranged $313 million of construction, cash-grant bridge, letter-of-credit and mini-perm facilities for the 150 MW Alta Wind VIII project. Source: GLOBAL PROJECT FINANCE PRACTICE (https://www.akingump.com/a/web/25466/2013-Global-Project-Finance-10-25-13-OPTIMIZED.pdf) - 2012-01 — Sale to Brookfield Project-finance transaction records identify the sale of the 150 MW Alta Wind VIII project by its predecessor developer, Terra-Gen, to Brookfield in January 2012. Source: GLOBAL PROJECT FINANCE PRACTICE (https://www.akingump.com/a/web/25466/2013-Global-Project-Finance-10-25-13-OPTIMIZED.pdf) - 2021-04-19 — Definitive portfolio acquisition agreement NextEra Energy Partners announced an agreement with Brookfield Renewable to acquire a 391 MW portfolio containing Alta Wind VIII for a $733 million base purchase price, subject to closing adjustments. Source: NextEra Energy Partners, LP announces definitive agreement to acquire an approximately 400-megawatt portfolio of long-term contracted wind assets – XPLR Infrastructure, LP (https://www.investor.xplrinfrastructure.com/news-and-events/news-releases/2021/04-19-2021-123128388) ## Sources - [Source](https://www.sce.com/sites/default/files/inline-files/ExhibitC1_1_CECCaliforniaPowerPlants.xls) — sce.com · tier other - [NextEra Energy Partners, LP completes acquisition of ...](https://www.investor.xplrinfrastructure.com/news-and-events/news-releases/2021/08-25-2021-210623618) — investor.xplrinfrastructure.com · tier other - [NextEra Energy Partners Generation Portfolio_9302021.xlsx](https://www.investor.nexteraenergypartners.com/~/media/Files/N/NEP-IR/shareholder-resources/Generation%20Portfolio/NextEra%20Energy%20Partners%20Generation%20Portfolio_9302021.pdf) — investor.nexteraenergypartners.com · tier other - [NextEra Energy Partners, LP announces definitive agreement to acquire an approximately 400-megawatt portfolio of long-term contracted wind assets – XPLR Infrastructure, LP](https://www.investor.xplrinfrastructure.com/news-and-events/news-releases/2021/04-19-2021-123128388) — investor.xplrinfrastructure.com · tier other - [Source](https://www.caiso.com/documents/august5_2010lgiabetweeniso_sce_andaltaentitiesindocketno_er10-2122-000.pdf) — caiso.com · tier other - [Alta Wind Energy Center (AWEC), California - Power Technology](https://www.power-technology.com/projects/alta-wind-energy-center-awec-california/) — power-technology.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 - [GLOBAL PROJECT FINANCE PRACTICE](https://www.akingump.com/a/web/25466/2013-Global-Project-Finance-10-25-13-OPTIMIZED.pdf) — akingump.com · tier other - [Source](https://investor.xplrinfrastructure.com/news-and-events/news-releases/2021/04-19-2021-123128388) — investor.xplrinfrastructure.com · tier other - [Federal Register :: Alta Wind I, LLC; Alta Wind II, LLC; Alta Wind III, LLC; Alta Wind IV, LLC; Alta Wind V, LLC; Alta Wind VI, LLC; Alta Wind VII, LLC; Alta Wind VIII, LLC; Alta Windpower Development, LLC; TGP Development Company, LLC; Notice of Petition for Declaratory Order](https://www.federalregister.gov/documents/2010/05/03/2010-10218/alta-wind-i-llc-alta-wind-ii-llc-alta-wind-iii-llc-alta-wind-iv-llc-alta-wind-v-llc) — federalregister.gov · tier regulatory - [2026 NQC List](https://www.caiso.com/documents/net-qualifying-capacity-report-for-compliance-year-2026.xlsx) — caiso.com · tier other ## Data quality - The $733 million figure was the base purchase price for the unlevered 391 MW, four-facility portfolio acquired by NextEra Energy Partners; it was not disclosed as Alta Wind VIII’s standalone sale price. The $313 million figure relates to Alta Wind VIII project financing arranged in May 2011, including construction, cash-grant bridge, letter-of-credit and mini-perm facilities; it is distinct from the later portfolio acquisition price. No expansion, retirement or repowering milestone is identified in the cited record; the 2021 acquisition release refers to repowering only as potential future optionality. --- Canonical page: https://askthegrid.com/assets/facilities/alta-wind-viii Source: Ask the Grid — https://askthegrid.com/