R-1 Residential
Massachusetts Electric Co · Flat · filed 2025
What this tariff charges
| Fixed charge | $10.00 per month |
|---|---|
| Structure | Flat |
| Filed | 2025-03-01 |
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 | 0.28678 | 0.14672 | 0.43350 |
What it costs at different usage levels
| kWh per month | Annual total | Effective $/kWh |
|---|---|---|
| 500 | $2,721.00 | $0.4535 |
| 1000 | $5,322.00 | $0.4435 |
| 2000 | $10,524.00 | $0.4385 |
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 $2,177 and $3,950 a year on this tariff, paying back in 5–10 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 →
The utility's own description
Electric delivery service under this rate is available for all domestic purposes in an individual private dwelling or an individual apartment and for church and farm purposes.
URDB rate id 67cf3302ef8f02942e0586be · all Massachusetts Electric Co tariffs