Greater Boston Residential Assistance A2 (R-2) with electric heat
NSTAR Electric Company · Flat · filed 2026
What this tariff charges
| Fixed charge | $7.50 per month |
|---|---|
| Structure | Flat |
| Filed | 2026-02-01 |
Energy rates
The charged price is the base rate plus its adjustment. Adjustments carry fuel and rider costs and are frequently most of the bill, so a comparison built on the base rate alone is meaningless.
Energy charge
| Tier | Up to | Base | Adjustment | Charged $/kWh |
|---|---|---|---|---|
| 1 | no limit | 0.09591 | 0.15629 | 0.25220 |
What it costs at different usage levels
| kWh per month | Annual total | Effective $/kWh |
|---|---|---|
| 500 | $1,603.20 | $0.2672 |
| 1000 | $3,116.40 | $0.2597 |
| 2000 | $6,142.80 | $0.2560 |
Effective rate includes the fixed charge, which is why it falls as usage rises.
Rooftop solar on this tariff
A 7 kW system costing $21,000 before incentives would save between $1,267 and $2,298 a year on this tariff, paying back in 9–17 years . No federal tax credit is included: Section 25D ended on December 31, 2025.
no sell rate filed, but this utility reports residential net metering - the range spans no export credit to full retail netting. Compare across this state →
URDB rate id 6987ee74b3589f0abc0c10bd · utility source document · all NSTAR Electric Company tariffs