Battery storage · CT
Home batteries in Connecticut.
Storms take the grid down. A battery keeps the heat, the well, and the fridge on — and can earn when the grid needs help.
Connecticut
What makes Connecticut different.
Typical homes here see about $0.25 / kWh and 1,283 kWh per kW per year. We size the system to your bill — then confirm it on the roof.
Energy Storage Solutions pays an upfront rebate per kWh installed, at a higher rate inside designated Grid Edge circuits, plus a yearly performance payment based on what your battery contributes during peak events. Current rates are in the cards beside this; Helio files the application.
We size the battery around the circuits you actually care about — well, heat, refrigeration, office — and enroll it. A long outage may still want a standby generator. We will say so.
- Local programs that may apply
Energy Storage Solutions — upfront (from Apr 1, 2026)
$30 / kWh standard · $130 / kWh Grid Edge
Statewide program. Grid Edge adders apply in designated circuits. Caps apply; Helio files the application.
Energy Storage Solutions — performance
$300 / kW-year
Paid on average contribution during peak events for 10 years (standard residential). Underserved and LMI classes pay more.
Connecticut, specifically
What power has actually cost here.
Every savings figure on this site assumes your utility keeps raising its rate. So does every other company’s. The difference is that you can check ours — these are the federal government’s own published prices for Connecticut, next to the number we model.
| Last 5 years (2019–2024) | 5.6% |
|---|---|
| Last 10 years (2014–2024) | 3.8% |
| Since 2005 (2005–2024) | 4.0% |
| What Helio assumes | 4.0% |
No single window is the truth, which is exactly why anyone showing you one number for the next twenty-five years — including us — is showing you an assumption. Ask any installer what your savings look like at today’s rate with no increase at all. How the money works runs that comparison.
Who you buy power from here
Eversource, United Illuminating. Which one serves your address decides the tariff you can take and the credit you get for what the roof exports, so an advisor confirms it before anything is filed.
Who does the work
Crews dispatch from Trumbull. Licensed in Connecticut as HIC.0658346, ELC.0204339-E1 — public record, worth looking up before you let anyone on your roof.
See what storage could save in Connecticut.
Prelim online. In-home visit to lock the number.