Gather outdoors in the backyard of the JP Green Home, a passive house net-zero energy retrofit house in the historic Woodbourne neighborhood of Boston. We'll show native plants galore, rooftop solar, air-source heat pump heating and cooling with energy recovery ventilation (ERV), electric induction cooking, heat pump hot water and clothes dryer, EV car with level 2 charging, and an e-bike.

Today we're celebrating the Sun with:

Sun Day 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.