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Solar & Private Generation

Setting the path for a renewable future — together.

At Unitil, we believe reliable, affordable energy and environmental sustainability can — and should — go hand-in-hand. We also believe in customer choice, giving you more options and greater control. When you generate energy in parallel with our system, you are helping to support a grid that is more efficient, affordable and environmentally friendly for everyone. We are now approaching 3,000 interconnections in our service territory — that’s a lot of customer-generated energy (almost 20 percent of peak load, in fact!) This ever-evolving renewable grid is the future of energy, and we’re here to help advance it.

House with solar panel on roof

Steps to Interconnection

Start generating your own power

See how you can generate your own renewable energy in parallel with our electric system, which can lower your monthly bill.

Hands holding electric meter

Net Metering

How we credit your self-generation

Net metering is the process by which your electric bill reflects both the power you use and the power you generate.

Were you looking for backup generator safety?

Even though you’re not in the right spot, we’re sure glad you’re thinking about how to do it properly!

SMART Program

Ramping up solar development

With the support of Unitil and other participating electric utilities, Massachusetts is aiming to be the most energy-efficient state in the nation through initiatives like the SMART Program, which supports development of new solar projects.

Solarway solar array in Fitchburg, Massachusetts

Save the Planet, Save Money

Renewable energy isn’t just good for the environment — through interconnection, it’s good for your wallet, too.