Battery storage · MA
Home batteries in Massachusetts.
Keep the house up through the next outage. In Massachusetts, an enrolled battery can also earn when the grid is stressed.
Massachusetts
What makes Massachusetts different.
Typical homes here see about $0.29 / kWh and 1,210 kWh per kW per year. We size the system to your bill — then confirm it on the roof.
There is no statewide upfront battery rebate on the scale of Connecticut’s ESS. The Massachusetts battery earns its keep on outages plus ConnectedSolutions. Helio enrolls the system and designs backup around the load, not a brochure kWh number.
- Local programs that may apply
Mass Save ConnectedSolutions
$275 / kW-summer
Performance payment on the battery’s average contribution during summer peak events. What that comes to in a year depends on how often the grid calls an event and how much your battery gives back each time, so we model it against your own system after enrollment rather than printing a yearly figure here.
Massachusetts, 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 Massachusetts, next to the number we model.
| Last 5 years (2019–2024) | 6.0% |
|---|---|
| Last 10 years (2014–2024) | 5.4% |
| Since 2005 (2005–2024) | 4.2% |
| 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, National Grid, Unitil. 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 Boston. Licensed in Massachusetts as 213657 — public record, worth looking up before you let anyone on your roof.
See what storage could save in Massachusetts.
Prelim online. In-home visit to lock the number.