Solar Energy

Photovoltaic (PV) panels are grouped in fixed arrays (rooftop or ground) or on trackers that tilt to follow the sun. Silicon panels turn sunlight into electricity, which is converted from DC to AC power by an inverter and run into the grid (or a battery, for off-grid installations). Net metering lets you use what you need and sell the excess power back to your utility. For rooftop installations, consider your building’s orientation and shading, as well as any structural improvements that may be required.

• Lock in your energy costs at a fixed price every month
• Net metering ensures you have power when you need it
• Affordable technology with commercial and residential applications

See state incentives for solar PV.

A rebate of up to $1,000 is also available for projects that incorporate weatherization work through a Home Performance with ENERGY STAR project. Learn more.

Also known as solar thermal, solar hot water uses the sun’s energy to heat water for use or, less commonly, for space heating. Rooftop collector panels heat a liquid medium, which in turn heats water. The stored hot water eases demand on your water heating or home heating systems (which are still needed, especially in winter). Solar hot water systems require good, on-site design, appropriate sizing, and regular maintenance.