Energy Capital Partners has bought Triple Oak Power, a four-year-old US wind developer with about 8 GW of projects, from EnCap and its co-investors. No price was disclosed. Reports before the sale suggested $500 million to $750 million, a range that rested less on megawatts than on how little capital the business needs to run. Almost none of those megawatts were generating power.
Key takeaways
- Energy Capital Partners (ECP) announced on 9 January 2024 that it acquired Triple Oak Power, an Oregon-based renewable energy developer founded in 2020, from EnCap and co-investors Yorktown Partners and Mercuria Energy, with the deal value undisclosed.
- Triple Oak Power manages about 8 GW of renewable projects, mainly large-scale onshore wind in the central and western US, across 22 projects in 18 states; Leap records the portfolio at 8,200 MW.
- According to sources cited in Leap's record, sale proceeds for Triple Oak Power of $500 million to $750 million were expected, reflecting its agile corporate structure and a business model focused on minimal capital requirements.
- Triple Oak's named projects include the 1.1 GW Black Ridge wind farm in Apache County, Arizona, the 500 MW Sentinel wind farm in Colorado, the 300 MW Cabin Creek wind farm in Oklahoma and the 80 MW Jawbone wind farm in Montana.
- Marathon Capital, which launched the Triple Oak sale process in September 2023, advised EnCap and Triple Oak, with Sidley Austin as their legal adviser; Latham & Watkins advised ECP.
What did ECP actually buy?
It bought a development company rather than a fleet of power plants. Triple Oak was founded in 2020 to originate greenfield projects and acquire early-stage ones, take them through permitting and grid connection, and then monetise them. Greenfield development means starting from bare land: securing sites, studies, permits and interconnection rights before any construction begins.
The portfolio is broad rather than deep. Its 22 projects sit across 18 states, and about half the capacity is spread across seven of them: Arizona with 13 percent, Kansas with 8 percent, Oklahoma with 7 percent, and Colorado, Oregon, South Dakota and Wyoming with 6 percent each. The company has focused on utility-scale wind and has said it aims to diversify into solar and hydro.
Only one of the named projects is close to producing power. Leap's project record shows the 80 MW Jawbone wind farm in Wheatland County, Montana, in construction, with financial close dated to January 2024, an investment of $130 million and expected operation in early 2027. Everything else in the named list is early-stage.
Why would a developer with no operating fleet command up to $750 million?
Because the reported range priced the platform, not the turbines. Leap's record attributes the expected proceeds to Triple Oak's agile corporate structure and a model built on minimal capital requirements. A developer that spends relatively little before selling or financing projects can turn a large pipeline into value without carrying construction costs on its own balance sheet.
The pipeline is large next to the reported range. Across the 8,200 MW Leap records, $500 million to $750 million works out at about $0.06 million to $0.09 million per MW. That is a price for options on future projects, many of which will not be built, rather than for capacity.
The scale of what remains to be spent makes the point. Leap's project records put the investment needed for Black Ridge at $1.8 billion, Sentinel at $800 million and Cabin Creek at $480 million. Those three projects alone imply more than $3 billion of construction spending, several times the top of the reported sale range.
How far has the timetable moved since the sale?
Further out. At the time of the deal, Leap's record listed expected commercial operation dates of 2026 for Black Ridge and Sentinel, 2029 for Cabin Creek and 2025 for Jawbone. Leap's current project records place Black Ridge's expected operation at mid-2031, Sentinel's at mid-2029 and Jawbone's at early 2027, with Cabin Creek still at the end of 2029.
Slippage of that kind is common in US wind development, where interconnection queues and permitting can stretch timelines by years. For a buyer of an early-stage platform, it is the main risk being priced: value arrives only when projects reach construction, and each year of delay pushes that value further away.
Enerdatics' data shows where early-stage US wind trades. Enerdatics records 59 US wind transactions announced in 2023 and 2024, of which 24 carry a value that converts to a price per MW, with a median of $0.99 million per MW. Among the nine early-stage deals, the six priced ones have a median of $0.30 million per MW and a range from $0.06 million to $0.35 million. The two that carry a calculated developer premium have a median of $0.08 million per MW. An 840 MW early-stage wind deal in September 2024 priced at $0.06 million per MW, and an 800 MW deal in July 2024 at $0.20 million per MW. The reported range for Triple Oak, at $0.06 million to $0.09 million per MW, sits at the bottom of that band, in line with a pipeline where most capacity is years from construction.
What does the deal signal for US wind development?
It signals that private equity still wants exposure to US onshore wind, but at the development stage and through platforms rather than single assets. ECP has said its expertise and resources will back Triple Oak as it accelerates project development. That is a commitment to fund the next phase, not just to hold the pipeline.
It also shows how far apart the two ends of US wind finance sit. At one end are platform sales priced in cents per watt. At the other are construction packages such as Pattern Energy's $11.05 billion financing for SunZia and Innergex's $583 million package for Boswell Springs. Most of the value in a portfolio like Triple Oak's is created in moving projects from the first category into the second.
The original version of this post put the deal at up to $750 million. Leap records the value as undisclosed; the $500 million to $750 million range comes from sources reported before the sale and is not a confirmed price.
Frequently asked questions
How much did Energy Capital Partners pay for Triple Oak Power? The price was not disclosed. According to sources cited in Leap's record, sale proceeds of $500 million to $750 million were expected.
Who sold Triple Oak Power? EnCap and its co-investors, Yorktown Partners and Mercuria Energy. Marathon Capital ran the sale process, which began in September 2023.
How large is Triple Oak Power's portfolio? About 8 GW, mainly onshore wind, across 22 projects in 18 US states. Named projects include Black Ridge (1.1 GW), Sentinel (500 MW), Cabin Creek (300 MW) and Jawbone (80 MW).
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