Alternative asset and private equity investor KKR and climate solutions and sustainable infrastructure investment firm HA Sustainable Infrastructure Capital (HASI) announced an agreement to commit an additional $1 billion, including $500 million from each firm, into their clean energy infrastructure-focused co-investment platform CarbonCount Holdings 1 (CCH1).

Launched in 2024 as a strategic partnership by KKR and HASI, CCH1 provides long-term capital solutions for sustainable infrastructure projects across the U.S., with investments consistent with HASI’s existing investment strategy, which includes a focus on behind-the-meter, grid-connected, renewable natural gas and transport projects.

Marc Pangburn, HASI Chief Revenue and Strategy Officer, said:

“CCH1 enables us to efficiently deploy capital into sustainable infrastructure projects that support the energy transition and address the country’s rising power demand. Alongside KKR, we are pleased to further scale CCH1 to deliver long-term value for our clients and stakeholders.”

The platform was initially established with $1 billion commitments from each investor, to be invested over 18 months. Earlier this year KKR and HASI expanded CCH1’s investment capacity through the issuance of issue $592 million in a private offering of senior unsecured notes, and extended the initial investment period through November 2026.

With the new commitments, combined with existing leverage targets, the investors said that the platform’s investment capacity will increase to nearly $5 billion, and that its investment period has been extended to the earlier of the end of 2027, or when all commitments have been utilized.

To date, CCH1 has closed nearly $3 billion of investment commitments spanning six asset classes.

Cecilio Velasco, Managing Director at KKR, said:

“Expanding our commitment to CCH1 reflects the strong momentum we are seeing across the strategic partnership and our conviction in the opportunity set ahead. Together with HASI, we look forward to delivering long-term, flexible capital to high-quality sustainable infrastructure projects across the U.S.”