Massachusetts utility data · EIA utility 54913
NSTAR Electric Company residential electricity rate
In finalized 2024 EIA-861 data, NSTAR Electric Company reported an average 29.91¢ per kWh for bundled residential service in Massachusetts.
2024 EIA bundled residential average
29.91¢ per kWh
Historical annual average—not a current tariff.
EIA derives this average from the utility's reported residential revenue and sales. Your actual rate can differ because of tariffs, fixed charges, taxes, usage tiers, riders, time-of-use pricing, and other bill components.
What “bundled” means
Supply and delivery are reported together.
For this page, we only publish a provider headline when EIA reports bundled residential service. That makes this figure more useful than an energy-only or delivery-only component, but it still does not reproduce the provider's current rate schedule.
Data quality
Observed EIA record
This publication-ready page requires the selected provider record to be observed rather than entirely imputed. The underlying source is finalized Form EIA-861 detailed data.
Simple cost examples
What 29.91¢/kWh implies at common usage levels
These examples are simple usage × annual-average-price calculations. They are not predictions of a NSTAR Electric Company bill.
Newer state context
Massachusetts's latest monthly residential average is 29.61¢/kWh.
That state figure is from June 2026, while the provider figure above is a 2024 annual EIA average. The periods and populations differ, so this is context rather than a direct price comparison. See the Massachusetts rate page →
Reported service territory
Counties associated with NSTAR Electric Company in Massachusetts
Barnstable CountyBerkshire CountyBristol CountyDukes CountyFranklin CountyHampden CountyHampshire CountyMiddlesex CountyNorfolk CountyPlymouth CountySuffolk County
A county appearing in EIA's service-territory file does not mean every address in that county is served by this utility.
Utility details
Investor Owned
- EIA utility ID
- 54913
- Balancing authority
- ISNE
- NERC / RTO
- Alt Fuel Vehicle, Alt Fuel Vehicle 2, Buying Transmission, Distribution, Generation, ISONE, Retail Marketing, Transmission, Wholesale Marketing
- Residential sales
- 2,107,270 MWh
Source and methodology
Final 2024 EIA Form 861 data
Provider identity, residential customers, sales, revenue, service type, and county service territory come from EIA's finalized annual detailed files.
Other publication-ready utilities in Massachusetts