The Nonprofit Solar Tax Exemption Amendment Act of 2025 aims to amend Section 1005 of Title 47 of the District of Columbia Official Code. The bill stipulates that buildings and grounds owned by institutions, organizations, or entities that are exempt from real property taxation under Section 1002 will not be assessed and taxed if they are utilized for solar energy generation, energy storage, and energy management activities. A new subsection (e) is added to clarify that the tax exemption applies specifically to those buildings or grounds that comply with Energy Star guidelines or are used for electric vehicle charging.

This legislation is designed to promote the use of renewable energy sources by providing tax relief to nonprofit organizations that engage in solar energy and related activities. The bill will take effect after being approved by the Mayor, undergoing a 30-day congressional review, and being published in the District of Columbia Register.