Solar Farm Spotlight: Happy Hollow

Community Solar Farm
  • Apr 18, 2020

Each month, we spotlight one of the solar farms in our Community Solar program. Community Solar is a new way to receive some of the financial benefits of solar energy—without the hassle of installing your own solar panels. You can learn more about Community Solar in this blog post

The solar farms in our Community Solar program are groups of solar panels located in a field or on a rooftop that leverage the power of the sun to produce renewable energy. Solar farms typically feed into the larger electricity grid and help to shift the fuel mix to clean, renewable sources—while helping customers save money on their electric bills!

This month’s solar farm is Happy Hollow Community Solar Farm. The 7.1-MW community solar farm is built on a gravel pit in Winchendon, Massachusetts, and includes a 3.3-MW energy storage system. 


Winchendon, MA

Located in Worcester County, MA


Happy Hollow Community Solar Farm serves both residential and commercial customers within the National Grid utility service area. This includes residents, small businesses, and even a few municipalities. Happy Hollow customers receive 10% savings on their solar bill credits!*

Interconnection (when the solar farm starts generating power): 

Happy Hollow Community Solar Farm “turned on” and started generating solar power in October 2019.

Capacity (how much solar energy the solar farm can generate):

Happy Hollow Community Solar Farm has the capacity to generate 9,095,328 kWh of clean solar energy each year. That’s the equivalent of:¹

  • 1,389 cars taken off the road for one year; or

  • 7,085,816 pounds of coal not burned; or

  • 106,334 tree seedlings grown for 10 years!

More about solar in Massachusetts:²

  • 13% of the Commonwealth’s electricity comes from solar.

  • There are more than 10,000 solar jobs in the state.

  • The Solar Massachusetts Renewable Target (SMART) program, approved in 2018, promotes and incentivizes cost-effective solar development in the state. Happy Hollow Community Solar Farm is part of the SMART program!

Interested in joining a Community Solar farm? 

If you’re a Massachusetts resident within National Grid’s service area, you can sign up today and save up to 10% on your electric bill.* 

If you’re not a Massachusetts resident, find your local Community Solar farm and sign up today to save money and the planet!

Sign up for Community Solar in 3 minutes

¹EPA Greenhouse Gas Equivalencies Calculator

²SEIA, Massachusetts Solar

*IMPORTANT: Community Solar offers up to twenty years of Alternative On-Bill Credits ("AOBCs") for your subscription to a solar farm. The value of AOBCs is not guaranteed and may increase or decrease over the term of the agreement based on your utility's tariffs. The subscription rate is a 10% discount to the AOBC you receive and is not regulated by the Massachusetts Department of Public Utilities. Savings are not guaranteed. You may be subject to an early termination fee of $250. Although you are not using solar power generated by the solar farm, your purchase of AOBCs supports solar development in MA. Terms and conditions apply and are subject to change. Review the Subscription Agreement for additional details.