HA Sustainable Infrastructure Capital (HASI) and global investment firm KKR have agreed to increase their capital commitment to CarbonCount Holdings 1 LLC (CCH1) by a combined $1 billion, adding $500 million each to expand the co-investment vehicle’s capacity to finance sustainable infrastructure projects across the United States.
CCH1, created by HASI and KKR to provide long-term capital solutions for energy transition and other sustainable infrastructure assets, is expected to reach nearly $5 billion in total investment capacity when the newly expanded commitments are combined with existing leverage targets. The parties also extended the vehicle’s investment period to the earlier of the end of 2027 and the point at which all commitments have been deployed.
The additional commitment follows a period of significant deployment activity under the HASI KKR strategic partnership. The vehicle was established in May 2024, when HASI and KKR each agreed to invest an initial $1 billion, with the partnership designed to co-invest in clean energy assets across 18 months. In June 2025, CCH1 expanded its investment capacity by issuing $592 million of 20-year fixed-rate senior unsecured notes and extending the initial investment period through November 2026.
Through November 2025, and after accounting for the reinvestment of returned capital, the strategic partnership has closed nearly $3 billion of investment commitments spanning six asset classes, reflecting what the firms described as a strong pipeline for future transactions.
HASI said its broader platform focuses on sustainable infrastructure assets that advance the energy transition. The company reported more than $15 billion in managed assets and described a portfolio diversified across utility-scale solar, storage, and onshore wind, as well as distributed solar and storage, renewable natural gas, and energy efficiency investments.
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“CCH1 enables us to efficiently deploy capital into sustainable infrastructure projects that support the energy transition and address the country’s rising power demand,” said HASI Chief Revenue and Strategy Officer Marc Pangburn. “Alongside KKR, we are pleased to further scale CCH1 to deliver long-term value for our clients and stakeholders.”
Marc Pangburn, Chief Revenue and Strategy Officer, HASI
“Expanding our commitment to CCH1 reflects the strong momentum we are seeing across the strategic partnership and our conviction in the opportunity set ahead,” said Cecilio Velasco, Managing Director, KKR. “Together with HASI, we look forward to delivering long-term, flexible capital to high-quality sustainable infrastructure projects across the U.S.”
Cecilio Velasco, Managing Director, KKR
