Eversource serves most of eastern Massachusetts — Boston, Greater Boston suburbs, North Shore, South Shore, Cape Cod, and MetroWest. With electricity rates of $0.24–$0.28/kWh, Eversource customers have some of the highest electricity costs in the US, making every kWh a solar system produces exceptionally valuable. This is the primary driver of MA's strong solar ROI.
Eversource is required under Massachusetts law to offer net metering to residential solar customers. Excess production is credited to your Eversource account — credits roll forward monthly and are true'd up annually. Eversource net metering credits apply at a rate set by the MA Department of Public Utilities.
After your solar system is installed and inspected, your installer submits an interconnection application to Eversource. Eversource reviews, approves, and upgrades your meter to bi-directional net metering capability. Eversource interconnection timelines typically run 6–12 weeks from application — your installer manages the process.
Eversource has its own SMART program capacity block — your installer checks current block availability and locks in your rate at enrollment. Eversource SMART payments are made separately from your net metering credits.