About Us

Massachusetts-based 621 Energy builds, owns, operates and services solar photovoltaic systems for businesses and nonprofit organizations. We provide a complete range of solar PV solutions including:

• Project Development

• Turnkey Installation

• Financing

• Operation and Maintenance

• Solar and Energy Consulting Services 

June 21st is most often the date of the summer solstice, when the sun’s position in the sky reaches its northernmost extreme. This is the longest day of the year and a peak solar power day in the northern hemisphere. In the spirit of the summer solstice, 621 Energy ensures that our solar photovoltaic (PV) systems and those of our clients operate at a peak performance level. 

The experienced 621 Energy team has developed standards for project management, engineering, product selection, installation, documentation and ongoing monitoring which are designed to meet the requirements of the most discerning customers.  

As a part-owner of 20 solar energy projects for Massachusetts nonprofits, 621 Energy has a unique “owner’s perspective” we bring to the implementation of all our solar PV projects, with special attention to maximizing the lifetime value of the project. 

Since our founding in 2011, our commitment to the customer experience is backed by our reputation for technical excellence, personalized service, and attention to detail throughout the entire solar energy process.