HA Sustainable Infrastructure Capital, Inc.

Effective May 11, 2026, Marc Pangburn will transition from his current role as Senior Managing Director & Chief Revenue and Strategy Officer, and a Company employee, to a Strategic Advisor (the “Transition”). In connection with the Transition, the Company and Mr. Pangburn have entered into a non-employee consulting agreement (the “Consulting Agreement”) pursuant to which Mr. Pangburn will provide strategic consulting services to the Company until March 5, 2028, subject to termination by either party. Under the terms of the Consulting Agreement, Mr. Pangburn will be eligible to earn fees on an hourly basis for services provided and certain of his existing unvested LTIP Units will continue to vest in accordance with their terms, subject to continued consulting services and his compliance with restrictive covenants. The LTIP Units granted to Mr. Pangburn in 2026 will be forfeited.

The foregoing summary of the Consulting Agreement does not purport to be complete and is qualified in its entirety by the terms of the Consulting Agreement and the amendments to the relevant equity award agreements, each of which will be filed as an exhibit to the Company’s next periodic report.

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