Onshore Wind Transactions in United States

Renewables.digital currently lists 10 Onshore Wind transactions in United States between December 2025 and September 2026, with a combined capacity of 5,554 MW. Companies involved include ACCIONA Energía (1), Ardian (1), Arroyo Investors, ONCEnergy (1), Cordelio Power (1) and EGCO Group (1). Development status: Operational (10) and Under Construction (1). The most recent deal is “EGCO Group Acquires 49% Stake in 339 MW Pinnacle IV Wind and Solar Portfolio in Oklahoma and Texas” (26 September 2026).

  • 10Transactions
  • 5,554 MWTotal capacity
  • 3Technologies
  • 3With PPA
  • December 2025 – September 2026Period

All Onshore Wind transactions in United States

DateTransactionTechnologyCapacityCountryBuyerSeller
EGCO Group Acquires 49% Stake in 339 MW Pinnacle IV Wind and Solar Portfolio in Oklahoma and Texas Onshore Wind, Solar PV 339 MW United States EGCO Group Pinnacle Power, Apex Clean Energy
Revolve Renewable Power Acquires 9.6 MW Horseshoe Bend Operational Wind Project in Montana, USA for ~USD 10.5 Million Onshore Wind 9.6 MW United States Revolve Renewable Power –
Ardian Acquires MEAG / Munich Re Minority Stake in 460 MW Horse Creek and Electra Wind Farms in Texas Onshore Wind 460 MW United States Ardian MEAG
Greenvolt Power and Bedrock Renewables Acquire 116 MW Operational Wind Portfolio Across Four Iowa Counties Onshore Wind 116 MW United States Greenvolt Power, Bedrock Renewables –
Power Sustainable Sells 49.9% Stake in 240 MW Big Sky Wind Farm in Illinois to Hamilton Lane and GCM Grosvenor Onshore Wind 240 MW United States Hamilton Lane and GCM Grosvenor Power Sustainable Energy Infrastructure (PSEI)
Enel Acquires 830MW Wind and Solar Portfolio in the USA from Excelsior Energy Capital for ~$1 Billion Onshore Wind, Solar PV 830 MW United States Enel Green Power Excelsior Energy Capital
Portland General Electric Acquires 805MW Washington Utility Operations from PacifiCorp for $1.9 Billion Onshore Wind 328 MW United States Portland General Electric (PGE) PacifiCorp
Arroyo Investors and ONCEnergy Acquire 60 MW Whirlwind Energy Center Wind Farm in Texas Onshore Wind 60 MW United States Arroyo Investors, ONCEnergy –
Pattern Energy Agrees to Acquire Cordelio Power and 1,550 MW Clean Energy Portfolio in the U.S. and Canada Onshore Wind, Solar PV, Battery Storage (BESS) 1,550 MW United States, Canada Pattern Energy Group Cordelio Power
ACCIONA Energía sells US and Mexico wind and solar portfolio to MIP for €855 million Solar PV, Onshore Wind 1,621 MW United States, Mexico Mexico Infrastructure Partners (MIP) ACCIONA Energía

Deal summaries

EGCO Group Acquires 49% Stake in 339 MW Pinnacle IV Wind and Solar Portfolio in Oklahoma and Texas

26 September 2026 · 339 MW · United States

Thailand's EGCO Group has closed the acquisition of a 49% stake in the Pinnacle IV portfolio, comprising the 222 MW Comanche Wind Farm in Oklahoma and the 117 MW Cactus Flats II Solar Plant in Texas, for a total transaction value of approximately THB 5,861 million. Both assets are operational and backed by long-term PPAs with investment-grade utilities.

Greenvolt Power and Bedrock Renewables Acquire 116 MW Operational Wind Portfolio Across Four Iowa Counties

18 May 2026 · 116 MW · United States

Greenvolt Power and Bedrock Renewables have acquired three operational onshore wind projects in Iowa totalling 116 MW: Top of Iowa Wind (80 MW, Worth County), Crosswind (21 MW, Palo Alto/Clay Counties) and Hardin Hilltop Wind (15 MW, Greene County). All three projects are candidates for repowering as they approach the end of their initial operational life.

Power Sustainable Sells 49.9% Stake in 240 MW Big Sky Wind Farm in Illinois to Hamilton Lane and GCM Grosvenor

29 April 2026 · 240 MW · United States

Power Sustainable Energy Infrastructure (PSEI) has completed the sale of a 49.9% interest in Big Sky Wind, a 240 MW fully repowered operating wind facility in Illinois, to funds managed by Hamilton Lane and GCM Grosvenor. PSEI retains a majority stake and continues to oversee operations. The transaction reflects PSEI's capital recycling strategy to fund new renewable energy investments.

Enel Acquires 830MW Wind and Solar Portfolio in the USA from Excelsior Energy Capital for ~$1 Billion

21 February 2026 · 830 MW · United States

Enel, through its subsidiaries Enel Green Power North America and EGPNA Project Holdco 2, has signed agreements to acquire an 830 MW portfolio of operational wind and solar plants in the United States from Excelsior Energy Capital for approximately $1 billion USD (€850 million). The deal is expected to generate around €125 million per year in additional EBITDA and will bring Enel's North American renewable capacity to approximately 13 GW. Closing is anticipated in Q3 2026.

Portland General Electric Acquires 805MW Washington Utility Operations from PacifiCorp for $1.9 Billion

17 February 2026 · 328 MW · United States

Portland General Electric (PGE) has agreed to acquire Washington state generation, transmission and electric utility operations from PacifiCorp for $1.9 billion. The deal includes the 477MW Chehalis natural gas plant, the 94MW Goodnoe Hills wind facility, and the 234MW Marengo I & II wind facilities, plus 4,500 miles of transmission and distribution lines serving 140,000 customers. Manulife Investment Management will hold a 49% stake in the newly formed Washington utility subsidiary.

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Data as of 30 September 2026. The overview covers the transactions currently listed in the Renewables.digital database; each deal links to its original public source.