Backup that starts automatically.
When an outage hits, the battery can power your home without starting a generator. How long it lasts depends on its charge and what you're running.
FROM A NEIGHBOR ON WALNUT · ARLINGTON HEIGHTS
Power outages
suck.
Worrying about the sump pump. The fridge full of groceries. A house getting too cold — or too hot. We're over it.
Our Base home battery backup is installed and operating here on Walnut. Here's why we chose it.
$295 one-time installation fee.No battery to buy.$0 monthly battery fee.Requires Base electricity service. Base owns and maintains the battery. You still pay for electricity. Eligibility and agreement terms apply.
Check my home with Base How can the installation cost $295?
Our Base backup is up and running.
Costs, backup limits, and agreement details.↗
Costs, backup limits, and agreement details.↗
THE STARTING POINT$295
Base's advertised one-time Illinois installation fee.*
THE ELECTRIC BILLStill ComEd.
Base supplies the electricity. ComEd delivers it and sends the bill.
THE MONTHLY BATTERY FEE$0.
No monthly battery membership fee in Illinois. Electricity charges still apply.
A NOTE FROM DOWN THE STREET
Hi, I'm Mark.
We live on Walnut.
An outage makes everything your problem at once: the sump pump, the food in the fridge, and keeping the house comfortable.
We have Base Power's home battery backup installed at our home on Walnut. We chose it because we wanted automatic backup without buying and maintaining the equipment ourselves. The lower electricity supply rate was part of the appeal, too.
I made this page for neighbors asking the same questions I did: What's the cost? How does it work? And what am I signing up for?
Here's how the deal worksTHE QUESTION EVERYONE ASKS
How can the
installation
be $295?
Base becomes your electricity supplier and owns the battery, which it also uses to support the grid. That business model helps fund the backup service.
Base's pricing and plan details ↗A lower supply rate. Still one ComEd bill.
You switch electricity supply to Base; ComEd continues delivery and billing. Base currently advertises supply rates below ComEd's default Price to Compare. Compare supply rates separately from your total bill.
Base owns and maintains the battery.
Base earns revenue by using the battery to support the grid. That helps make the upfront cost possible. You pay for installation and electricity service; Base keeps ownership.
THE QUESTIONS I'D ASK
A little clarity
before you
click through.
These are a neighbor's summaries. Base's current written offer and your agreements determine your terms.
Base's help center ↗What's the cost — and do I buy the battery?
Base's currently advertised Illinois offer is a $295 one-time installation fee, no battery to buy, and $0 monthly battery membership fee. You enroll in Base electricity service; Base owns and maintains the battery.
You still pay for electricity. Additional work or a nonstandard installation can change costs; get your home's price in writing. Agreement commitments and any applicable cancellation charges are separate.
Base's installation and ongoing costs FAQ ↗Do I still have ComEd?
ComEd remains your delivery utility and sends your bill. Base Retail becomes your electricity supplier. Compare the offered supply plan with your current plan, especially if you use hourly pricing or another supplier.
What could it power, and for how long?
Base lists 12–18 hours at average usage and up to 36 hours at reduced usage for its 39.2 kWh battery. Those are estimates. What you can run at once, and for how long, depends on the configuration, available charge, and your home's loads.
Have Base confirm your sump pump, refrigerator, and heating or cooling needs. The battery isn't guaranteed to be full when an outage starts, and backup availability isn't guaranteed.
What are the plan terms and cancellation options?
Base currently offers a 24-month Illinois electricity plan and a separate 12-year battery services agreement. If you move, an eligible buyer can take over the battery agreement through Base's transfer process.
Early cancellation generally includes a $500 charge when Base recovers the battery; exemptions and other obligations apply. Have Base confirm the terms for your home before enrolling.
What's the referral offer?
Base's active Illinois/ComEd referral terms list up to a $250 supply-bill credit for a qualifying new member. I may also earn a credit. Use my personal link and have Base confirm your exact offer when you enroll.
The referred member must complete 60 days of active service; credits post within two billing cycles afterward. This is a later bill credit, separate from the installation charge.
Base's referral program FAQ ↗Can I ask you a question?
Absolutely. Email me about why we chose Base or the signup process. Base can confirm pricing, eligibility, and technical details for your home.
Email Mark ↗YOUR NEIGHBOR REFERRAL PERK
Up to $250
toward your
electric bill.
Use my personal Base referral link to qualify for up to $250 in supply-bill credit as a new ComEd-area member. I may receive a referral credit too.
Check my home with BaseEligibility and current terms apply. Requires 60 days of active service; credit follows within two billing cycles. Separate from the installation fee. Have Base confirm your exact offer before enrolling.
STILL THINKING IT OVER?
You've got a
neighbor to ask.
Happy to talk by email about why we chose Base. Their team can answer pricing, eligibility, and technical questions about your home.