Greater Boston Residential Assistance A4 (R-3) without electric heat
NSTAR Electric Company · Flat · filed 2026
$0.0980per kWh, all in
$1,176a year at 1,000 kWh/mo
$7.50fixed, before any usage
$0.1992utility's actual average
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 | 0.09049 | 0.00000 | 0.09049 |
What it costs at different usage levels
| kWh per month | Annual total | Effective $/kWh |
|---|---|---|
| 500 | $632.94 | $0.1055 |
| 1000 | $1,175.88 | $0.0980 |
| 2000 | $2,261.76 | $0.0942 |
Effective rate includes the fixed charge, which is why it falls as usage rises.
The utility's own description
Service under this rate is available for domestic uses in residential premises, for service in an edifice set apart exclusively for public worship, and condominium common areas (per M.G.L. Chapter 164 Section 94H), and cooperative apartment common areas (per D.P.U. 1720) with total electric water and space heating requirements, and whose electric equipment installations have been approved by the Company, excluding hotels and apartment buildings of ten or more dwelling units where the bills are not rendered by the Company directly to the individual tenants. This rate is closed for expansion to nursing homes or master-metered apartment buildings.
URDB rate id 6987eca2cfc7af5a35004fb8 · utility source document · all NSTAR Electric Company tariffs