Connecticut
vsMassachusetts
Side-by-side comparison of electricity costs, generation mix, and renewable energy data.
| Connecticut | Metric | Massachusetts |
|---|---|---|
| 29.38¢/kWh | Residential | 30.48¢/kWh |
| 23.11¢/kWh | Commercial | 23.08¢/kWh |
| 18.35¢/kWh | Industrial | 19.35¢/kWh |
| #47 | Price Rank | #49 |
| 3.1% | Renewable % | 19.6% |
Generation Mix
Connecticut
Massachusetts
Frequently Asked Questions
Connecticut has cheaper residential electricity at 29.38¢/kWh. The difference is 1.10¢/kWh between the two states. Connecticut ranks #47 and Massachusetts ranks #49 cheapest among all states.
Connecticut gets 3.1% of electricity from renewables, while Massachusetts gets 19.6%. Massachusetts leads in renewable energy adoption.
Electricity rates from EIA retail sales data. Generation mix from EIA electric power operational data.
Source: U.S. Energy Information Administration, 2026.
Comparing Connecticut and Massachusetts on U.S. state-level electricity rates and generation mix requires lining up the underlying the EIA Open Data API and State Electricity Profiles data side by side. The table above runs the comparison on the canonical fields; the narrative below identifies the factor or factors that drive the most meaningful difference between the two.
For households or analysts using this comparison as a decision input, the right framing is usually not "which is better" in aggregate but "which is better for the specific decision in front of you." the EIA Open Data API and State Electricity Profiles captures the raw data; the framing depends on whether the question is investment, residency, planning, or research.