In celebration of SunDay, Upper Charles Climate Action 350 MA will showcase EVs as part of the town-wide parade and at a booth at the Celebrate Holliston festival. Come ask questions about our EVs, connect with neighbors who can share experiences with solar panels and heat pumps, and make a beautiful SunDay logo design of your own!

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.