ComEd's battery rebate pays $300 for every kWh you install. That's $4,050 for a single Tesla Powerwall 3.
What the Rebate Is Worth
ComEd pays $300 per kWh of battery capacity. Its current rules set that amount through the end of 2029.
| Battery | Capacity | ComEd rebate |
|---|---|---|
| Tesla Powerwall 3 | 13.5 kWh | $4,050 |
| Each Powerwall 3 Expansion Unit | 13.5 kWh | $4,050 |
| FranklinWH aPower 2 | 15 kWh | $4,500 |
| Each additional aPower 2 | 15 kWh | $4,500 |
A kWh, or kilowatt-hour, is a unit of energy. The more kWh a battery stores, the larger the rebate.
The rebate is part of ComEd's Distributed Generation Rebate program, which is why you'll sometimes see it called the "ComEd DG rebate." The same program also pays a separate rebate for solar panels. Read about the ComEd solar rebate →
Who Qualifies
If you're adding a battery along with new solar: a battery installed together with new solar panels qualifies.
If you're adding a battery to solar you already have: it depends on when your solar was connected to the grid. If it was connected after August 11, 2022, your battery qualifies. If it was connected on or before that date, ComEd's rebate rules don't provide a rebate for the battery, so we won't include one in your price. You can usually find the date on the approval letter from ComEd that let you turn your solar on. If you can't, we'll look it up with you.
If you don't have solar: since June 1, 2026, a battery on its own qualifies for the first time.
What's Required
Joining ComEd's scheduled dispatch program. To take the rebate, you must agree to participate in ComEd's Scheduled Dispatch Virtual Power Plant program for five years. Starting in summer 2027, your battery will power your home on weekday afternoons from 4 to 6 pm, June through September, when demand on the grid peaks. If you own your battery, ComEd pays you a modest amount each year for taking part (typically tens of dollars). If you choose Prio or Prio for Batteries, those payments go to Certasun, as the battery's owner.
No rate plan requirement for new applications. Until October 19, 2026, customers who took the rebate had to stay on a time-based ComEd rate plan for the life of the battery. ComEd's updated rules remove that requirement for applications from that date on. You may still want a time-based plan, though, because it's often how a battery saves you the most money. We'll recommend the one we think will be cheapest for you based on your own usage patterns.
How the Rebate Is Paid
We handle the application. Certasun applies for the rebate on your behalf once your battery is installed and turned on.
If you buy your battery, ComEd pays the rebate directly to you, about six months after your installation is complete.
If you choose Prio, Certasun owns the battery, so Certasun receives the rebate. It's already built into your Prio prepayment, which is why Prio for Batteries starts at only $7,800 for a Tesla Powerwall 3. See Prio for Batteries →
Taxes. ComEd treats the rebate, and any payments from its scheduled dispatch program, as taxable income. Talk with your tax advisor if you have questions about how that applies to you.
Other Illinois Battery Incentives
The ComEd rebate is the main incentive for a home battery in northern Illinois. Two others you may hear about don't apply to a battery you own:
- Illinois Shines pays for the solar energy your panels produce. A battery doesn't produce energy, so it doesn't earn Illinois Shines payments on its own.
- The federal tax credit for homeowners ended for systems installed after December 31, 2025. Businesses can still claim a federal credit on batteries they own. With Prio, Certasun claims the credit and builds the benefit into your Prio prepayment.
Questions Homeowners Ask
How much is the ComEd battery rebate?
$300 per kWh of battery capacity: $4,050 for a Tesla Powerwall 3 and $4,500 for a FranklinWH aPower 2.
Can I get the rebate if I don't have solar?
Yes. Since June 1, 2026, a battery on its own qualifies.
My solar was installed years ago. Does my new battery qualify?
It depends on when your solar was connected to the grid. After August 11, 2022, yes. On or before that date, ComEd's rules don't provide a rebate for the battery. Adding a battery to your existing solar →
Do I have to switch rate plans to get the rebate?
Not for applications from October 19, 2026 on. You may still save more on a time-based plan, though, and we'll recommend the right one for your home.
When will I get the money?
If you buy your battery, ComEd pays you about six months after your installation is complete.
Is the rebate taxable?
ComEd treats it as taxable income. Check with your tax advisor.
Who applies for the rebate?
Certasun will handle the rebate application for you.
Last updated: September 30, 2026
