Solar Interconnection Grant Fund and Program; established. Establishes the Solar Interconnection Grant Program for the purpose of awarding grants on a competitive basis to public bodies to offset costs associated with the interconnection of solar facilities to the grid. The Program is administered by the Division of Renewable Energy and Energy Efficiency of the Department of Energy. The bill requires that priority be given to solar facilities located on previously developed project sites. The bill requires the Division to establish and publish guidelines and criteria for the awarding of grants and general requirements of the Program. The provisions of the bill expire on July 1, 2026. The bill directs the Commission on Electric Utility Regulation to review and identify any issues associated with the process and cost of interconnecting solar projects to the grid and report its findings by December 1, 2025.