About Us

Massachusetts-based 621 Energy, LLC builds, owns, operates and services commercial-scale solar photovoltaic systems. We provide a complete range of solar PV solutions.

Read More

Peak Performance

Not all PV systems are the same! Many installed PV systems are underperforming their potential production through sub-optimal design, installation or maintenance practices.

Read More

News

When it comes to investing in solar energy, Melrose continues to be one of the top communities in Massachusetts. The latest example is Melrose Bank, where 621 Energy recently completed the installation of a rooftop and carport solar array that will supply more than half of the bank’s electricity.

Read More