The numbers
Eversource customers in Connecticut currently pay around $0.240/kWh on average. At the historical escalation rate of about 6.0% a year, that rate compounds quickly if it holds:
| Today | In 5 years | In 10 years | In 20 years |
|---|---|---|---|
| $0.240 | $0.321 | $0.430 | $0.770 |
Projection based on Connecticut's historical rate escalation of 6.0%/yr, compounded annually. Not a guarantee โ actual future rates depend on regulatory decisions.
That's a 221% increase over 20 years if the trend continues โ meaning the same household usage that costs $240 today per 1,000 kWh would cost roughly $770 at that point.
What's actually driving the increase
Connecticut has ranked among the handful of most expensive states nationally for residential electric rates for years, driven by transmission and distribution charges, public benefits surcharges, and the cost of importing power into a constrained New England grid. Eversource has filed repeated rate increases tied to grid infrastructure and storm hardening.
Connecticut residents typically pay 40โ50% more per kWh than the national average โ one of the widest gaps of any state, which is exactly why locally-generated kWh are worth more here than almost anywhere else in the country.
How residents are fighting back
You can't vote down a rate case yourself, but you can reduce how much of your bill is exposed to it. Connecticut's HB 5340 (2026 omnibus solar act) now allows a permit-free, no-utility-approval plug-in solar system up to 1200W โ effective October 1, 2026. Most plug-in systems this size don't qualify for net metering, so the strategy that actually works is maximizing self-consumption โ using the power as you generate it, rather than exporting it back to the grid at a rate that keeps rising anyway.
Bottom line
Hartford rates are going up, and the drivers behind it โ among the highest electric rates in the nation โ aren't going away soon. Every kWh you generate yourself is a kWh permanently insulated from the next rate case.
Further reading
Sources
- Short-Term Energy Outlook โ U.S. Energy Information Administration
- Electricity Data (historical retail prices by state) โ U.S. EIA
- Electricity prices, demand to continue rising in 2026: EIA โ Utility Dive
- State Electricity Profiles (average prices & rankings by state) โ U.S. EIA
- Local Climate Data for Denver, CO (sunshine & temperature normals) โ National Weather Service (NOAA)
- PJM capacity prices hit record high as grid operator falls short of reliability target โ Utility Dive
- Amid high heat, power demand in PJM territory could set records โ Maryland Matters
- Population Growth Reported Across U.S. Regions (Vintage 2025 estimates) โ U.S. Census Bureau
- The Data Center Capital of the World Is in Virginia โ Governing