A gray house on a tree-lined street at golden hour, with a white Flip battery against a green and yellow painted wall

Home battery backup, without buying a battery.

Flip installs it, runs it and maintains it, for one low monthly price. When the power goes out, your home keeps going. You never lift a finger.

What Flip does for you

We put a battery in your home and take care of the rest.

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

Backup when the power goes out

Your home switches to the battery on its own. Heat, fridge, well pump and Wi-Fi stay on for a day or more.

Split scene: at night a white Flip battery charges from the grid; by day it powers the home

Savings on your bill

Where your utility has time-of-use rates, the battery charges when power is cheap and runs your home when it’s expensive.

Illustration: a white Flip battery wearing sunglasses on a beach towel under a yellow umbrella, with a drink beside it

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.
The idea behind Flip

When your battery helps the grid, everyone comes out ahead.

A few days a month, your battery supplies power to the grid when demand peaks. Here’s who that helps.

YouA battery for a fraction of the priceYour utility pays Flip for your battery’s help at peak times. Flip puts that money toward your battery, its installation and its upkeep, so you pay a low monthly price instead of buying one.
On a sunny day, energy flows from the Flip battery out to the power lines and the neighborhood
Your communityFewer disruptions and lower prices for everyonePeak evenings are when the grid is most stretched and power is most expensive. When batteries across your area supply power then, the grid runs steadier and avoids disruptions, and utilities buy less of that costly peak power. Those savings show up on everyone’s bill.

Grid events run automatically and don’t disrupt your home usage.

The Flip battery: a white, rounded cabinet installed outdoors against a shingled home
The Flip battery

Big enough for real outages. Built to sit outside year-round.

Designed by Flip, sized to run a whole home, not just a few outlets. No propane or diesel to refill, no weekly test runs, no noise or fumes.

Up to 80 kWhStorage per system
24–48 hOf backup for a typical home, going easy on big appliances
Independently certifiedTested to the highest safety standards
Rugged designMade to withstand all weathers
Service areas

Find your state’s program

Each state has its own program and price. Pick yours to see the details.

ConnecticutEversource and United Illuminating customersMaineCMP and Versant Power customersMassachusettsEversource and National Grid customersNew HampshireEversource customers
Live somewhere else?Check your ZIP.

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
Who is Flip

An energy company that owns, runs and stands behind every battery.

More about Flip →
We’re on the hook, not youFlip owns your battery, so if something’s wrong, it’s ours to fix.
Years of running batteriesOur software runs home batteries for utilities across the U.S. Your battery gets the same care.
Backed by utility and state programsEach Flip program runs through your utility or state’s official energy program.
Installed by licensed prosVetted, licensed electricians do the work, and Flip stands behind every install.
10%of Flip’s profits go back to local initiatives

We invest in the places we work

Flip gives 10% of its profits back to local initiatives in the communities we serve. And every battery that eases demand at peak times helps keep the grid steady and power affordable for everyone on it, battery or not.

Be ready when the next outage hits.

Check your ZIP to find your state’s program.

Check my ZIP

Common questions

One low monthly fee and a one-time installation fee cover the installation, permitting, monitoring, and maintenance — with no big upfront cost. Exact pricing depends on your area; see your local page for details.

Yes. Backup for your home always comes first. Flip holds a protected reserve in your battery at all times, so helping the grid never leaves you in the dark.

Flip owns and maintains the system for its entire life. You get the backup power at a low monthly fee; Flip is repaid by the grid.

On high-demand days, your battery automatically sends some stored power to the grid while keeping a reserve for your home. You don't have to do anything.

A local, licensed, certified installer in your area — vetted by Flip. They also handle the permits and inspection.

No. In fact, in most areas solar panels are not compatible with Flip's battery system.

In some regions, yes. Your battery can charge during cheaper off-peak hours and discharge during expensive peak hours under Time-of-Use rates — that arbitrage can lower your bill. Check your local page for what's offered.

The subscription can transfer to the new owner, or Flip can remove the system. Check your local page for details and any removal fee.

More questions? Visit our support page →