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Based on publicly available information as of mid-2026. Invenergy is a private company and does not publish audited financials.

Overview

Invenergy is the largest private renewable energy company in North America, having developed roughly 30 gigawatts of capacity across about 190 wind, solar, battery storage, and natural gas projects, with a development pipeline exceeding 100 GW. Founded in 2001 by Michael Polsky in Chicago, it operates across more than 35 U.S. states and internationally in Canada, Europe, Japan, and Latin America, with more than 2,000 employees.

Invenergy has stayed private, though not purely founder-owned: its largest shareholder is the Canadian pension fund CDPQ, and Blackstone Infrastructure Partners has invested roughly $4.5 billion since 2022, while Polsky retains voting control and leads management. Polsky previously founded SkyGen Energy and Calpine's wind business before launching Invenergy. The private structure lets the company take longer-horizon development bets without quarterly earnings pressure, and keeps flexibility for complex, capital-intensive projects that would be harder to execute under public market scrutiny.

Business lines

WindLargest technology segment

Wind is Invenergy's largest and most mature business. The company developed some of the first utility-scale wind farms in the U.S. Midwest and has since expanded across the Great Plains, Mountain West, and Eastern U.S. It has exited offshore wind entirely: it canceled its 2.4 GW Leading Light Wind project off New Jersey in late 2025, citing supply-chain and equipment problems, and in 2026 agreed to relinquish its four federal offshore leases for about $765 million, redirecting that capital toward natural gas and geothermal.

Solar & storageFastest-growing segment

Solar has become a fast-growing share of development activity as utility-scale photovoltaic costs have fallen and corporate PPA demand has surged. Invenergy develops standalone solar and increasingly co-locates battery storage with it to deliver dispatchable clean energy. The company operates one of the largest stand-alone battery storage portfolios in North America.

Natural gas & emerging technologiesDispatchable capacity

Invenergy operates about 14 natural gas plants that provide grid reliability services alongside the renewable portfolio, and it is expanding gas capacity to serve fast-growing data-center and industrial demand. It has also moved into geothermal, holding roughly 45 leases across about 144,000 acres in Nevada, Idaho, California, Utah, and New Mexico, and continues to invest in green hydrogen, carbon capture, and long-duration storage. The mix positions it for a transition that may require firm, dispatchable low-carbon capacity beyond what batteries alone can supply.

Notable projects

Invenergy has developed several of the largest renewable projects in the U.S. The Traverse Wind Energy Center in Oklahoma, at 998 MW, part of the 1.48 GW North Central Energy Facilities, was the largest single-phase wind farm built in North America at completion. The company has also developed large projects for utilities including Xcel Energy, Consumers Energy, and ComEd, alongside long-term PPAs with Apple, Microsoft, and other Fortune 500 companies.

Invenergy is also the developer and owner of the Grain Belt Express, a roughly $12 billion, 5 GW high-voltage direct-current transmission line planned to carry wind and solar power across Kansas, Missouri, Illinois, and Indiana. The project has secured all state approvals and awarded construction contracts, with first-phase work targeted to begin in 2026. In July 2025 the Department of Energy terminated a conditional loan guarantee of up to $4.9 billion for the line, and Invenergy has said it will proceed using private financing.

The company has been active in battery storage since its early days, operating some of the first grid-scale lithium-ion projects in North America. Its storage portfolio now spans hundreds of megawatts operating and gigawatts in development, often paired with solar in markets like California, Texas, and the Southeast.

Strategy & outlook

Invenergy is targeting aggressive growth in solar, storage, and transmission development to capture the surge in electricity demand from data centers, industrial reshoring, and electrification. It has also tilted toward firm capacity, expanding natural gas and moving into geothermal, a shift sharpened by the 2025 One Big Beautiful Bill Act, which accelerated the phase-out of wind and solar tax credits and made dispatchable generation relatively more attractive. The company has been among the most active developers in interconnection queues across multiple ISOs, a bet on sustained U.S. demand growth through the next decade.

The private structure is a real advantage in long-horizon development. Invenergy can hold projects in early-stage development for years without pressure to monetize, which lets it secure sites and permits well ahead of commercial viability. As the transition advances, that land and permit bank has grown more valuable.

Key considerations

As a private company, Invenergy offers limited financial transparency: revenue, margins, and balance sheet are not disclosed, so its true financial scale and debt load are hard to assess from outside. Backing by CDPQ and Blackstone gives it deep pools of institutional capital, and the private structure still means no public market accountability and no liquidity mechanism for outside investors.

Its growth ambitions face the same structural barriers as every large developer: interconnection queue backlogs, permitting timelines, and transmission constraints. Invenergy has been a vocal advocate for grid reform and faster interconnection, which reflects how much regulatory friction limits its ability to convert a development pipeline into operating assets.

Sources

This profile was compiled from publicly available information including:

Invenergy corporate website — Company overview, project portfolio, and press releases.

Industry reporting from S&P Global, BloombergNEF, and Wood Mackenzie on U.S. renewable energy development.

FERC interconnection queue data and EIA-860 generator filings.

This profile is for informational purposes only and does not constitute investment advice, a recommendation, or a solicitation to buy or sell any security.

← Back to all profilesUpdated Aug 2026