SunDay is a global day of action on September 21st, 2025, celebrating the unstoppable rise of clean energy. We’ll come together to showcase the power of the sun and wind, the energy sources that can power our world without pollution.

See a ground mount solar installation and learn about HAREI (Hillsborough Area Renewable Energy Initiative). HAREI Empowers Hillsborough County NH homeowners with the knowledge and skills to design, build, install, and operate renewable solar energy systems for their own homes, contributing to a sustainable future for all.

HAREI.org