Battery storage that keeps your home on.
A home battery keeps your lights, fridge, heat, and internet running through outages — and stores cheap or solar power to use during expensive peak hours. Nexis installs FranklinWH, Tesla Powerwall, and Enphase batteries, sized to what you actually want to back up, and enrolls eligible systems in ConnectedSolutions to earn money for sharing stored power.
Why add a battery
Outage backup and lower peak-hour costs
Grid outages are more frequent, and Massachusetts has some of the highest electricity rates in the country. A battery solves both: it becomes your home's backup power the instant the grid goes down, and it lets you store energy when it's cheap (or free, from your own solar) and use it when rates spike.
We size storage around what matters to you — just the essentials, or the whole home — and design every system to work with new or existing solar. Where eligible, we enroll you in utility programs that pay you for letting the grid draw on your battery during peak events.
What you get with a Nexis battery
- Whole-home or essentials backup — sized to the circuits you care about, with automatic switchover in outages.
- Premium batteries — FranklinWH aGate + aPower, Tesla Powerwall 3, or Enphase IQ Battery, matched to your home.
- ConnectedSolutions enrollment — earn seasonal incentives for sharing stored power during peak demand events, where eligible.
- Solar-paired or standalone — add to a new solar system, retrofit to existing solar, or install storage on its own.
- A real monitoring app — see charge level, backup status, and savings from your phone.
- Warranties that last — long-term battery warranties plus Nexis workmanship coverage.
Batteries we install
How your battery project runs
Free assessment
We review your panel, usage, and backup goals — in-home or virtual.
Design
Battery sizing, backup circuit plan, and a clear proposal with $0-down options.
Install
Licensed electricians install the battery, gateway, and backup panel.
Enroll
We commission monitoring and enroll eligible systems in ConnectedSolutions.
How it looks on your home
Earn money with your battery
ConnectedSolutions in Massachusetts
Once your battery is in, Nexis can enroll it in ConnectedSolutions — the Mass Save program that pays you to share a little stored power during summer peak-demand events. Your home stays powered; the utility just pulls from your battery instead of an expensive peaker plant.
For full program details, visit the official Mass Save ConnectedSolutions website.
Your battery can earn money in Massachusetts
Eligible batteries enrolled in ConnectedSolutions earn seasonal incentives for sharing stored power during peak events, on top of the bill savings from storing cheap or solar energy. We confirm eligibility and enroll you. (Program terms verified at your assessment.)
For full program details, visit the official Mass Save ConnectedSolutions website.
Ways to pay
Financing your battery
Add resilience your way — from a low-commitment battery-only lease to full ownership. Most start at $0 down.
Palmetto battery-only lease
Add backup power with $0 down on a battery-only lease — a low-commitment way to get resilience without buying the system outright.
$0-down ownership loan
Own your battery with a fixed monthly payment and keep every incentive, including ConnectedSolutions earnings.
Cash purchase
Lowest lifetime cost. We show cash vs. lease vs. loan so you can choose.
See if a battery makes sense for your home
Book a free assessment and we'll size backup, show your ConnectedSolutions eligibility, and price it with $0-down options — no cost, no pressure.
Battery FAQ
Answers, straight up
Yes — because we size it to the specific circuits you want to keep on and show you exactly what is covered before you sign, so there are no outage surprises. And we service what we install: if something looks off, you get a real answer, not a brush-off that it is normal.
No. We install batteries with new solar, retrofit to existing solar, or as a standalone backup system. Pairing with solar lets the battery recharge during an extended outage, which is why most homeowners add both.
It depends on the battery size and what you back up. Sized to essentials (fridge, lights, internet, heat controls), one battery can carry a home through a typical outage; multiple batteries or solar recharging extend that indefinitely. We size it to your goals at the assessment.
It's a Massachusetts utility program (Eversource/National Grid) that pays battery owners a seasonal incentive for letting the utility draw on their stored energy during peak-demand events. Enrollment is optional and you keep backup protection. We confirm eligibility and enroll you.
It depends on your home. FranklinWH is excellent for whole-home backup and expandability, Tesla Powerwall 3 integrates solar and storage cleanly, and Enphase pairs naturally with Enphase microinverters. We recommend based on your panel, load, and goals.
Usually yes. We assess your existing inverter and panel and design a compatible retrofit, adding a backup gateway and sub-panel so the battery protects your critical circuits.
Ready when you are
Book my free assessment
Same-week appointments across eastern MA. We bring the rebate math, you get a lower bill and a more comfortable home — $0 down to start.
