# Pinyon Pine I

CAISO Onshore Wind Turbine · https://askthegrid.com/assets/facilities/pinyon-pine-i

Pinyon Pine I is a wind power facility with 168 MW of EIA-reported operating capacity in Kern County, California, registered as EIA Plant ID 57834.

## Key facts

- Technology: Onshore Wind Turbine
- Power capacity: 168 MW
- Operating status: operating

## Grid and market context

- ISO/RTO: CAISO
- Balancing authority: California Independent System Operator (CISO)

## Source-backed facts

- Official project url: https://www.bherenewables.com/pinyon-pines-l-and-ll — Pinyon Pines l and ll · confidence: high
- Description: Pinyon Pine I is an operational 168-MW onshore wind plant in Kern County, California, with one generating unit identified as AW07. The unit entered service on November 1, 2012, and the plant is operated by Pinyon Pines Wind I, LLC in the CAISO market under balancing authority CISO. The project was formerly known as Alta Wind VII, and generation from Pinyon Pines I is sold to Southern California Edison under a long-term power purchase agreement. — MidAmerican Wind builds 300 MW Pinyon Pines wind power projects · confidence: medium
- Description: Pinyon Pine I is an operational 168-MW onshore wind plant in Kern County, California, with one generating unit identified as AW07. The unit entered service on November 1, 2012, and the plant is operated by Pinyon Pines Wind I, LLC in the CAISO market under balancing authority CISO. The project was formerly known as Alta Wind VII, and generation from Pinyon Pines I is sold to Southern California Edison under a long-term power purchase agreement. — Pinyon Pines l and ll · confidence: medium
- Parties.2: {"relationship":"Historical builder and project sponsor","name":"MidAmerican Wind","official_url":"https://www.brkenergy.com"} — MidAmerican Wind builds 300 MW Pinyon Pines wind power projects · confidence: medium
- Parties.3: {"relationship":"Developer","name":"Terra-Gen Power","official_url":"https://terra-gen.com"} — Pinyon Pines I | Open Energy Information · confidence: medium
- Parties.5: {"relationship":"Wind turbine OEM","name":"Vestas","official_url":"https://www.vestas.com"} — Pinyon Pines I | Open Energy Information · confidence: medium
- Parties.6: {"relationship":"Power purchaser and long-term PPA counterparty","name":"Southern California Edison Co.","official_url":"https://www.sce.com"} — Pinyon Pines l and ll · confidence: high
- 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
- Manufacturer name: Vestas — Pinyon Pines I | Open Energy Information · confidence: high
- Significance: Pinyon Pine I is the 168-MW project formerly known as Alta Wind VII, a phase of the Alta Wind Energy Center. Its acquisition and completion formed part of MidAmerican's 300-MW Pinyon Pines I and II build, which helped expand the center to 1,320 MW. — MidAmerican Wind builds 300 MW Pinyon Pines wind power projects · confidence: medium
- Description: Pinyon Pine I is an operational 168-MW, single-unit onshore wind plant in Kern County, California, operating in the CAISO market under balancing authority CISO. Its generating unit, identified as AW07, entered service on November 1, 2012, and the project is operated by Pinyon Pines Wind I, LLC. MidAmerican Wind agreed in October 2012 to acquire the project, then known as Alta Wind VII, from California Highwind Power, a Terra-Gen Power subsidiary; the acquisition was reported complete in November 2012. Generation is sold to Southern California Edison under a long-term power purchase agreement extending to 2035. — Warren Buffet's MidAmerican Wind Acquires Two Huge Alta Wind Projects - CleanTechnica · confidence: medium
- Description: Pinyon Pine I is an operational 168-MW, single-unit onshore wind plant in Kern County, California, operating in the CAISO market under balancing authority CISO. Its generating unit, identified as AW07, entered service on November 1, 2012, and the project is operated by Pinyon Pines Wind I, LLC. MidAmerican Wind agreed in October 2012 to acquire the project, then known as Alta Wind VII, from California Highwind Power, a Terra-Gen Power subsidiary; the acquisition was reported complete in November 2012. Generation is sold to Southern California Edison under a long-term power purchase agreement extending to 2035. — Pinyon Pines l and ll · confidence: medium
- Quality notes: ["The disclosed $650 million financing covered Alta Wind VII and Alta Wind IX together; no allocation to Pinyon Pine I alone was identified.","The acquisition consideration was not disclosed and should not be conflated with the $650 million construction financing.","The project-specific records reviewed do not identify an expansion, retirement, or repowering event through 2026-08-02.","The cited construction sources describe the combined Pinyon Pines I and II build; they do not establish an exact turbine count for Pinyon Pine I alone."] — MidAmerican Wind builds 300 MW Pinyon Pines wind power projects · confidence: medium
- Financing summary: Terra-Gen Power closed a $650 million financing in April 2012 for the combined 168-MW Alta Wind VII and 132-MW Alta Wind IX projects. The package included construction loans, seven-year term loans, bridge loans to U.S. Treasury ITC cash grants, and ancillary credit facilities. Proceeds reimbursed funds previously advanced by ArcLight Capital Partners and Global Infrastructure Partners and funded remaining construction costs. The project acquisition price was not disclosed. — Terra-Gen Power Closes Financing for Alta Wind Power Plants | Utility Dive · confidence: medium
- Financing summary: Terra-Gen Power closed a $650 million financing in April 2012 for the combined 168-MW Alta Wind VII and 132-MW Alta Wind IX projects. The package included construction loans, seven-year term loans, bridge loans to U.S. Treasury ITC cash grants, and ancillary credit facilities. Proceeds reimbursed funds previously advanced by ArcLight Capital Partners and Global Infrastructure Partners and funded remaining construction costs. The project acquisition price was not disclosed. — MidAmerican buys into 300MW of AWEC projects | Windpower Monthly · confidence: medium
- Financing summary: Terra-Gen Power closed a $650 million financing in April 2012 for the combined 168-MW Alta Wind VII and 132-MW Alta Wind IX projects. The package included construction loans, seven-year term loans, bridge loans to U.S. Treasury ITC cash grants, and ancillary credit facilities. Proceeds reimbursed funds previously advanced by ArcLight Capital Partners and Global Infrastructure Partners and funded remaining construction costs. The project acquisition price was not disclosed. — Terra-Gen completes financing for wind farm addition · confidence: medium
- Timeline: [{"event":"Project financing closed","date":"2012-04","detail":"Terra-Gen Power closed $650 million of combined financing for Alta Wind VII and Alta Wind IX, including construction and seven-year term loans, ITC-bridge loans, and ancillary credit facilities."},{"event":"Acquisition agreement announced","date":"2012-10","detail":"MidAmerican Wind agreed to acquire the 168-MW Alta Wind VII and 132-MW Alta Wind IX projects from California Highwind Power, a subsidiary of Terra-Gen Power. Transaction consideration was not disclosed."},{"event":"Acquisition completed","date":"2012-11","detail":"A November 2012 report stated that a MidAmerican Energy Holdings unit had completed the acquisition of Alta Wind VII and Alta Wind IX from a Terra-Gen subsidiary."},{"event":"Commercial operation","date":"2012-11-01","detail":"The EIA generator record identifies the AW07 unit as operational beginning November 1, 2012."},{"event":"Construction completion and project renaming","date":"2012-12","detail":"MidAmerican announced completion of the 168-MW Pinyon Pines Wind I and 132-MW Pinyon Pines Wind II projects, formerly known as Alta Wind VII and Alta Wind IX, and said both were placed in service before year-end 2012."},{"event":"Long-term power purchase agreement","date":"2035","detail":"Southern California Edison is identified as the electricity purchaser, with the project PPAs reported to extend to 2035."}] — Terra-Gen Power Closes Financing for Alta Wind Power Plants | Utility Dive · confidence: medium
- Timeline: [{"event":"Project financing closed","date":"2012-04","detail":"Terra-Gen Power closed $650 million of combined financing for Alta Wind VII and Alta Wind IX, including construction and seven-year term loans, ITC-bridge loans, and ancillary credit facilities."},{"event":"Acquisition agreement announced","date":"2012-10","detail":"MidAmerican Wind agreed to acquire the 168-MW Alta Wind VII and 132-MW Alta Wind IX projects from California Highwind Power, a subsidiary of Terra-Gen Power. Transaction consideration was not disclosed."},{"event":"Acquisition completed","date":"2012-11","detail":"A November 2012 report stated that a MidAmerican Energy Holdings unit had completed the acquisition of Alta Wind VII and Alta Wind IX from a Terra-Gen subsidiary."},{"event":"Commercial operation","date":"2012-11-01","detail":"The EIA generator record identifies the AW07 unit as operational beginning November 1, 2012."},{"event":"Construction completion and project renaming","date":"2012-12","detail":"MidAmerican announced completion of the 168-MW Pinyon Pines Wind I and 132-MW Pinyon Pines Wind II projects, formerly known as Alta Wind VII and Alta Wind IX, and said both were placed in service before year-end 2012."},{"event":"Long-term power purchase agreement","date":"2035","detail":"Southern California Edison is identified as the electricity purchaser, with the project PPAs reported to extend to 2035."}] — MidAmerican buys into 300MW of AWEC projects | Windpower Monthly · confidence: medium
- Timeline: [{"event":"Project financing closed","date":"2012-04","detail":"Terra-Gen Power closed $650 million of combined financing for Alta Wind VII and Alta Wind IX, including construction and seven-year term loans, ITC-bridge loans, and ancillary credit facilities."},{"event":"Acquisition agreement announced","date":"2012-10","detail":"MidAmerican Wind agreed to acquire the 168-MW Alta Wind VII and 132-MW Alta Wind IX projects from California Highwind Power, a subsidiary of Terra-Gen Power. Transaction consideration was not disclosed."},{"event":"Acquisition completed","date":"2012-11","detail":"A November 2012 report stated that a MidAmerican Energy Holdings unit had completed the acquisition of Alta Wind VII and Alta Wind IX from a Terra-Gen subsidiary."},{"event":"Commercial operation","date":"2012-11-01","detail":"The EIA generator record identifies the AW07 unit as operational beginning November 1, 2012."},{"event":"Construction completion and project renaming","date":"2012-12","detail":"MidAmerican announced completion of the 168-MW Pinyon Pines Wind I and 132-MW Pinyon Pines Wind II projects, formerly known as Alta Wind VII and Alta Wind IX, and said both were placed in service before year-end 2012."},{"event":"Long-term power purchase agreement","date":"2035","detail":"Southern California Edison is identified as the electricity purchaser, with the project PPAs reported to extend to 2035."}] — Renewable Energy Update -- November 20, 2012 | Allen Matkins - JDSupra · confidence: medium
- Timeline: [{"event":"Project financing closed","date":"2012-04","detail":"Terra-Gen Power closed $650 million of combined financing for Alta Wind VII and Alta Wind IX, including construction and seven-year term loans, ITC-bridge loans, and ancillary credit facilities."},{"event":"Acquisition agreement announced","date":"2012-10","detail":"MidAmerican Wind agreed to acquire the 168-MW Alta Wind VII and 132-MW Alta Wind IX projects from California Highwind Power, a subsidiary of Terra-Gen Power. Transaction consideration was not disclosed."},{"event":"Acquisition completed","date":"2012-11","detail":"A November 2012 report stated that a MidAmerican Energy Holdings unit had completed the acquisition of Alta Wind VII and Alta Wind IX from a Terra-Gen subsidiary."},{"event":"Commercial operation","date":"2012-11-01","detail":"The EIA generator record identifies the AW07 unit as operational beginning November 1, 2012."},{"event":"Construction completion and project renaming","date":"2012-12","detail":"MidAmerican announced completion of the 168-MW Pinyon Pines Wind I and 132-MW Pinyon Pines Wind II projects, formerly known as Alta Wind VII and Alta Wind IX, and said both were placed in service before year-end 2012."},{"event":"Long-term power purchase agreement","date":"2035","detail":"Southern California Edison is identified as the electricity purchaser, with the project PPAs reported to extend to 2035."}] — MidAmerican Wind builds 300 MW Pinyon Pines... · confidence: medium
- Timeline: [{"event":"Project financing closed","date":"2012-04","detail":"Terra-Gen Power closed $650 million of combined financing for Alta Wind VII and Alta Wind IX, including construction and seven-year term loans, ITC-bridge loans, and ancillary credit facilities."},{"event":"Acquisition agreement announced","date":"2012-10","detail":"MidAmerican Wind agreed to acquire the 168-MW Alta Wind VII and 132-MW Alta Wind IX projects from California Highwind Power, a subsidiary of Terra-Gen Power. Transaction consideration was not disclosed."},{"event":"Acquisition completed","date":"2012-11","detail":"A November 2012 report stated that a MidAmerican Energy Holdings unit had completed the acquisition of Alta Wind VII and Alta Wind IX from a Terra-Gen subsidiary."},{"event":"Commercial operation","date":"2012-11-01","detail":"The EIA generator record identifies the AW07 unit as operational beginning November 1, 2012."},{"event":"Construction completion and project renaming","date":"2012-12","detail":"MidAmerican announced completion of the 168-MW Pinyon Pines Wind I and 132-MW Pinyon Pines Wind II projects, formerly known as Alta Wind VII and Alta Wind IX, and said both were placed in service before year-end 2012."},{"event":"Long-term power purchase agreement","date":"2035","detail":"Southern California Edison is identified as the electricity purchaser, with the project PPAs reported to extend to 2035."}] — Warren Buffet's MidAmerican Wind Acquires Two Huge Alta Wind Projects - CleanTechnica · confidence: medium
- Commercial parties.2: {"relationship":"Historical acquirer, builder, and project sponsor","name":"MidAmerican Wind","detail":"MidAmerican agreed to acquire Alta Wind VII in October 2012 and announced completion of the renamed Pinyon Pines Wind I project in December 2012.","official_url":"https://www.brkenergy.com"} — Warren Buffet's MidAmerican Wind Acquires Two Huge Alta Wind Projects - CleanTechnica · confidence: medium
- Commercial parties.2: {"relationship":"Historical acquirer, builder, and project sponsor","name":"MidAmerican Wind","detail":"MidAmerican agreed to acquire Alta Wind VII in October 2012 and announced completion of the renamed Pinyon Pines Wind I project in December 2012.","official_url":"https://www.brkenergy.com"} — MidAmerican Wind builds 300 MW Pinyon Pines wind power projects · confidence: medium
- Commercial parties.3: {"relationship":"Seller and predecessor developer affiliate","name":"California Highwind Power","detail":"California Highwind Power, a subsidiary of Terra-Gen Power, was identified as the seller of the Alta Wind VII and Alta Wind IX projects to MidAmerican Wind.","official_url":null} — Warren Buffet's MidAmerican Wind Acquires Two Huge Alta Wind Projects - CleanTechnica · confidence: high
- Commercial parties.7: {"relationship":"Power purchaser and PPA counterparty","name":"Southern California Edison Co.","detail":"SCE purchases electricity from Pinyon Pines I under a long-term power purchase agreement.","official_url":"https://www.sce.com"} — Warren Buffet's MidAmerican Wind Acquires Two Huge Alta Wind Projects - CleanTechnica · confidence: high
- Commercial parties.7: {"relationship":"Power purchaser and PPA counterparty","name":"Southern California Edison Co.","detail":"SCE purchases electricity from Pinyon Pines I under a long-term power purchase agreement.","official_url":"https://www.sce.com"} — Pinyon Pines l and ll · confidence: high
- Commercial parties.8: {"relationship":"Development capital provider","name":"ArcLight Capital Partners","detail":"Terra-Gen identified ArcLight as an affiliate and financing source whose previously advanced development funds were reimbursed from the Alta VII and IX financing proceeds.","official_url":"https://www.arclight.com"} — Terra-Gen completes financing for wind farm addition · confidence: medium
- Commercial parties.9: {"relationship":"Development capital provider","name":"Global Infrastructure Partners","detail":"Terra-Gen identified Global Infrastructure Partners as an affiliate and financing source whose previously advanced development funds were reimbursed from the Alta VII and IX financing proceeds.","official_url":"https://www.global-infra.com"} — Terra-Gen completes financing for wind farm addition · confidence: medium
- Timeline.0: {"event":"Project financing closed","date":"2012-04","detail":"Terra-Gen Power closed $650 million of combined financing for Alta Wind VII and Alta Wind IX, including construction and seven-year term loans, ITC-bridge loans, and ancillary credit facilities."} — Terra-Gen Power Closes Financing for Alta Wind Power Plants | Utility Dive · confidence: high
- Timeline.0: {"event":"Project financing closed","date":"2012-04","detail":"Terra-Gen Power closed $650 million of combined financing for Alta Wind VII and Alta Wind IX, including construction and seven-year term loans, ITC-bridge loans, and ancillary credit facilities."} — MidAmerican buys into 300MW of AWEC projects | Windpower Monthly · confidence: high
- Timeline.1: {"event":"Acquisition agreement announced","date":"2012-10","detail":"MidAmerican Wind agreed to acquire the 168-MW Alta Wind VII and 132-MW Alta Wind IX projects from California Highwind Power, a subsidiary of Terra-Gen Power. Transaction consideration was not disclosed."} — MidAmerican buys into 300MW of AWEC projects | Windpower Monthly · confidence: high
- Timeline.1: {"event":"Acquisition agreement announced","date":"2012-10","detail":"MidAmerican Wind agreed to acquire the 168-MW Alta Wind VII and 132-MW Alta Wind IX projects from California Highwind Power, a subsidiary of Terra-Gen Power. Transaction consideration was not disclosed."} — Warren Buffet's MidAmerican Wind Acquires Two Huge Alta Wind Projects - CleanTechnica · confidence: high
- Timeline.2: {"event":"Acquisition completed","date":"2012-11","detail":"A November 2012 report stated that a MidAmerican Energy Holdings unit had completed the acquisition of Alta Wind VII and Alta Wind IX from a Terra-Gen subsidiary."} — Renewable Energy Update -- November 20, 2012 | Allen Matkins - JDSupra · confidence: high
- Timeline.4: {"event":"Construction completion and project renaming","date":"2012-12","detail":"MidAmerican announced completion of the 168-MW Pinyon Pines Wind I and 132-MW Pinyon Pines Wind II projects, formerly known as Alta Wind VII and Alta Wind IX, and said both were placed in service before year-end 2012."} — MidAmerican Wind builds 300 MW Pinyon Pines... · confidence: high
- Timeline.5: {"event":"Long-term power purchase agreement","date":"2035","detail":"Southern California Edison is identified as the electricity purchaser, with the project PPAs reported to extend to 2035."} — Warren Buffet's MidAmerican Wind Acquires Two Huge Alta Wind Projects - CleanTechnica · confidence: medium
- Quality notes.0: The disclosed $650 million financing covered Alta Wind VII and Alta Wind IX together; no allocation to Pinyon Pine I alone was identified. — MidAmerican buys into 300MW of AWEC projects | Windpower Monthly · confidence: high
- Quality notes.1: The acquisition consideration was not disclosed and should not be conflated with the $650 million construction financing. — MidAmerican buys into 300MW of AWEC projects | Windpower Monthly · confidence: high
- Quality notes.1: The acquisition consideration was not disclosed and should not be conflated with the $650 million construction financing. — Terra-Gen completes financing for wind farm addition · confidence: high
- Quality notes.3: The cited construction sources describe the combined Pinyon Pines I and II build; they do not establish an exact turbine count for Pinyon Pine I alone. — MidAmerican Wind builds 300 MW Pinyon Pines wind power projects · confidence: high
- Status detail: Pinyon Pine I is operational with one 168-MW generating unit, AW07; the unit is also listed as operational. The current owner page identifies the Pinyon Pines I and II project as operational, with 2012 as the operational year. — Pinyon Pines l and ll · confidence: medium
- Operating status: operating — Pinyon Pines l and ll · confidence: medium

## Timeline

- 2012-10 — Acquisition agreement announced
  MidAmerican Wind agreed to acquire the 168-MW Alta Wind VII and 132-MW Alta Wind IX projects from California Highwind Power, a subsidiary of Terra-Gen Power. Transaction consideration was not disclosed.
  Source: Warren Buffet's MidAmerican Wind Acquires Two Huge Alta Wind Projects - CleanTechnica (https://cleantechnica.com/2012/10/02/midamerican-wind-acquire-two-alta-wind-projects/)

## Sources

- [Pinyon Pines l and ll](https://www.bherenewables.com/pinyon-pines-l-and-ll) — bherenewables.com · tier other
- [MidAmerican Wind builds 300 MW Pinyon Pines wind power projects](https://www.renewableenergyworld.com/energy-business/new-project-development/midamerican-wind-builds-300-mw-pinyon-pines-wind-power-projects/) — renewableenergyworld.com · tier other
- [Pinyon Pines I | Open Energy Information](https://openei.org/wiki/Pinyon_Pines_I) — openei.org · tier other
- [Source](https://bherenewables.com/pinyon-pines-l-and-ll) — bherenewables.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
- [Terra-Gen completes financing for wind farm addition](https://www.power-eng.com/renewables/wind-energy/terra-gen-completes-financing-for-wind-farm-addition/) — power-eng.com · tier other
- [Warren Buffet's MidAmerican Wind Acquires Two Huge Alta Wind Projects - CleanTechnica](https://cleantechnica.com/2012/10/02/midamerican-wind-acquire-two-alta-wind-projects/) — cleantechnica.com · tier other
- [MidAmerican buys into 300MW of AWEC projects | Windpower Monthly](https://www.windpowermonthly.com/article/1152643/midamerican-buys-300mw-awec-projects) — windpowermonthly.com · tier other
- [Terra-Gen Power Closes Financing for Alta Wind Power Plants | Utility Dive](https://www.utilitydive.com/news/terra-gen-power-closes-financing-for-alta-wind-power-plants/23397/) — utilitydive.com · tier other
- [Renewable Energy Update -- November 20, 2012 | Allen Matkins - JDSupra](https://www.jdsupra.com/legalnews/renewable-energy-update-november-20-06233/) — jdsupra.com · tier other
- [BHE Renewables](https://ema.bherenewables.com/aboutus_wind.aspx) — ema.bherenewables.com · tier other
- [NRI](https://www.caiso.com/documents/fullnetworkmodel_workscope_db22m4.xlsx) — caiso.com · tier other
- [Notice](https://www.federalregister.gov/documents/2012/05/18/2012-12075/alta-wind-vii-llc-alta-wind-ix-llc-alta-wind-x-llc-alta-wind-xi-llc-alta-wind-xii-llc-alta-wind-xiii) — 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 disclosed $650 million financing covered Alta Wind VII and Alta Wind IX together; no allocation to Pinyon Pine I alone was identified. The acquisition consideration was not disclosed and should not be conflated with the $650 million construction financing. The project-specific records reviewed do not identify an expansion, retirement, or repowering event through August 2, 2026. The cited construction sources describe the combined Pinyon Pines I and II build; they do not establish an exact turbine count for Pinyon Pine I alone.

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Canonical page: https://askthegrid.com/assets/facilities/pinyon-pine-i

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