NSTAR Electric Company d/b/a Eversource Energy

Eversource does not offer an EV-specific residential time-of-use rate in its Massachusetts territory. Home EV owners charge on the standard residential delivery rate, with no EV-only TOU option available for residential service. The utility's off-peak mechanism is instead its Managed Charging program, which treats any time outside 1pm to 9pm as off-peak and pays enrolled drivers $10 a month for shifting charging into those hours. Commercial charging sites are different: they can take the optional EV-2 Electric Vehicle Charging rate, which has no peak and off-peak periods and instead prices delivery in four tiers by the site's load factor, with no demand charge in the lowest tier, so a lightly used charger is not hit with a large demand charge.

The residential rebate offsets the wiring or panel upgrade needed for a Level 2 charger, up to $700 for a standard-rate household, more for environmental justice communities and Discount Rate customers, who can also get help with the charger cost. Customers who take an EV charger or wiring rebate must enroll in Managed Charging and stay at least 12 months, so the rebate and the off-peak program are linked rather than optional alternatives, and a rebate customer does not also get the $50 enrollment incentive. The current program ends December 31, 2026, with complete applications due by November 1, 2026; what replaces it in 2027 depends on a pending state approval, so check the program page before planning a late-year install. The commercial make-ready program is separate, and its remaining 2026 funding is aimed at multifamily buildings and medium- and heavy-duty fleets; applications filed after October 1, 2026 are reviewed only as processing time permits, and funding is reserved only by a Letter of Agreement executed by December 31, 2026.

NSTAR Electric is the Massachusetts electric operating company of Eversource Energy. Its service area spans Greater Boston, southeastern Massachusetts and Cape Cod, and the Pioneer Valley and Berkshires in the west, while much of central Massachusetts is served instead by National Grid. Its programs run under Massachusetts Department of Public Utilities orders, so program terms here change by regulatory filing rather than at the utility's discretion.