A red-brick Massachusetts cape house on a sunny afternoon, with a white Flip battery against a green and yellow painted wall
Now enrolling in Massachusetts

Keep life going when Massachusetts’ power goes out.

Up to 48 hours of whole-home backup for $25 a month. Free for eligible homes.

Talk to an expert
  • Part of ConnectedSolutionsThe battery program run by Eversource and National Grid
  • Installed by licensed electriciansPermits, wiring and the utility hookup handled for you
  • Looked after by FlipMonitoring, maintenance and repairs included

What your battery does for you

Backup power when you need it. Flip runs it, so there’s nothing to manage.

Illustration: a gray house on a sunny day, its white Flip battery connected to the power line by a glowing wire
Most days

Stays ready

It stays charged and Flip watches it around the clock, so it’s ready for the next outage.

During a storm the power line is down, and the Flip battery keeps the home’s lights on
During an outage

Keeps life going in an outage

Your home switches to the battery automatically. One battery covers 24–48 hours if you go easy on big appliances.

Illustration: a white Flip battery wearing sunglasses on a beach towel under a yellow umbrella, with a drink beside it
When you’re away

Peace of mind when you’re away

Gone out of town? Your battery is always on and runs itself, so your fridge, sump pump, heat, or whatever you left on keeps running.

Everything is included

Installed for youLicensed electricians, permits and utility hookup included.
Watched around the clockWe spot problems before you do, even when you’re away.
Maintenance and repairsParts, service visits and fixes, all on us.
Runs itselfNo app to manage, no settings to tune, nothing to refill.

Price

Two plans, the same battery. Homes in eligible areas pay nothing at all.

Standard
For any Eversource or National Grid homeowners.
Monthly subscription
$25 / month + tax
One-time installation
$695 + tax
See if my home qualifies
FreeSame battery, same care
For homes in eligible areas.
Monthly subscription
$0 / month
One-time installation
$0
No installation fee on the free plan.
Check if I qualify for free
Included in both plans
A Flip battery: up to 80 kWh
Installation and permits
Utility hookup
Monitoring around the clock
All maintenance and repairs
20% always kept for your home
Who qualifies for the free plan
You live in an eligible area
Not sure? We’ll check on the call. It takes a couple of minutes.
Compared to other options
FlipStandby generatorBuying a battery
Upfront$695, or $0 if eligible$20,000+$20,000+
Monthly$25, or $0 if eligibleFuel and servicingNone
Maintenance and repairsIncludedYou payYou pay
Noise and fumesNoYesNo
Backs up your whole homeYesNoMaybe
Turns on by itselfYesMaybeYes
Participate in ConnectedSolutionsBenefits includedNoPerformance payments

Massachusetts helps pay for your battery. Your battery helps Massachusetts in return.

That’s why it costs so little.

On a sunny day, energy flows from the Flip battery out to the power lines and the neighborhood
01
Your battery helps the gridOn the hottest summer days, batteries across Massachusetts work together for 2 to 3 hours to ease peak demand. Yours always keeps at least 20% for your home.
02
ConnectedSolutions pays FlipThe program, run by Eversource and National Grid, pays for that help, because it keeps the grid reliable for everyone.
03
You pay little, or nothingThat money covers most of your battery, its installation and its upkeep. For eligible homes, it covers all of it.

Grid events run automatically. You won’t get notifications, and there’s nothing for you to do.

How to get started

  1. 01

    Call

    15 minutes to talk about your home and see if a battery makes sense.

  2. 02

    Home review

    Flip confirms your home qualifies and designs your system. You see the full contract before signing.

  3. 03

    Install

    A licensed crew installs it, usually in one day. Flip handles permits and the utility.

  4. 04

    Your subscription starts

    Once the battery is installed, your backup power starts. So does your monthly subscription.

Who’s eligible

You own your home in Massachusetts
You’re an Eversource or National Grid customer
Your home doesn’t have solar panels
Your home energy setup can handle the batteryFlip checks this in the home review
Not sure? Ask us on a call.
Get started

How it all fits together

The programConnectedSolutionsRun by Eversource and National Grid. It sets the rules and pays incentives for batteries that help the grid, which is what lowers your price.
Read about the program with Eversource →Read about the program with National Grid →
Your utilityEversource and National GridYour electric service stays with your utility. They review the battery connection before it’s turned on.
Your point of contactFlipWe own the battery, run it every day and fix it if anything goes wrong. One number to call, for everything.About Flip →

The Flip battery

Designed by Flip and built to withstand New England weather year-round.

Storage
Up to 80 kWh per system
Backup time
24–48 hours, depending on usage
Installed
Outdoors, next to your home
The Flip battery: a white, rounded cabinet installed outdoors against a shingled home

What homeowners say about Flip

Two stacked EG4 batteries and inverters installed in Adam’s basement in Yarmouth, Maine
“A battery gives me the peace of mind that my heat will stay on and pipes won’t freeze during outages, even when I’m out of state. I was considering purchasing a generator, but the high upfront cost made it prohibitive. Flip’s affordable battery subscription was a no-brainer!”
Adam G.Yarmouth, Maine

Questions

Something else? Ask us.

Homes in areas eligible for ConnectedSolutions+ (see the list under Price). We check on the call, and it only takes a couple of minutes.

Talk to a person

Still have questions? A 15-minute call will tell you whether a battery makes sense for your home. If it doesn’t, we’ll say so.

Pick a time to talkNo spam. We never sell your information.