A Typical 13.5 kWh Battery in Massachusetts
Backup, cost, and time-of-use bill savings
Installed Cost
$16,500
State Rebate
-$1,500
Net Cost
$15,000
Backup (essentials)
15 hrs
Avg Outages
6 hrs/yr
Bill Savings/yr
$798
Bill-Savings Payback
18.8 yrs
15-Year Savings
-$153
Massachusetts Battery Rebates
✕
Federal 25D Credit (Expired Dec 31, 2025)
The 30% federal Residential Clean Energy Credit covered standalone home batteries through December 31, 2025. Batteries installed in 2026 no longer qualify.
Up to $1,500
Massachusetts State & Utility Programs
Massachusetts' ConnectedSolutions pays recurring demand-response credits (~$225–$1,500/yr) for letting the utility tap your battery during peaks. View full rebate detail →
Battery Backup & Savings by City in Massachusetts
| City | Bill Savings/yr | Outage Hrs/yr | Population ↓ | Utility |
|---|---|---|---|---|
| Boston | $870 | 7 hrs | 675,647 | Eversource MA |
| Worcester | $679 | 6 hrs | 206,518 | Eversource MA |
| Springfield | $726 | 5 hrs | 155,929 | Eversource MA |
| Cambridge | $838 | 7 hrs | 118,403 | Eversource MA |
| Lowell | $778 | 7 hrs | 115,554 | Eversource MA |
| Brockton | $710 | 6 hrs | 105,643 | Eversource MA |
| New Bedford | $826 | 8 hrs | 101,079 | Eversource MA |
| Quincy | $790 | 5 hrs | 94,470 | Eversource MA |
| Lynn | $842 | 8 hrs | 94,299 | Eversource MA |
| Fall River | $814 | 6 hrs | 88,945 | Eversource MA |
Home Battery Savings Calculator
Instant estimate — no email required
A typical home battery (e.g. a Tesla Powerwall) is ~13.5 kWh.
Quick Facts: Massachusetts
- 🔌 Avg outages: 6 hrs/yr
- ⚡ Electricity: $0.248/kWh
- 📊 Peak/off-peak gap: $0.20/kWh
- 🏭 Top utility: Eversource MA