What do customers say about Base Power in Illinois?

Base began selling power and batteries in Illinois in June 2026. That is too new for a long record. We checked every public source we could find on October 25, 2026. Here is what each one can tell you, and what it can't.

The BBB profile is for Base Power in Austin, Texas, and it does not split out Illinois. We read it on October 25, 2026. Base has a B+ rating and is a BBB Accredited Business. All 6 complaints came in the last 12 months. The BBB marks 4 as resolved and 2 as answered.

The complaints fall into five groups:

• Install damage. Customers say a crew hit sprinkler wiring or an air conditioner.
• The battery during grid trouble. One customer wanted a way to override it.
• A late refund. A deposit refund took too long.
• A change the customer says they did not approve. One customer says a utility service was canceled without permission.
• Installs turned down. Some homes did not meet electrical clearance rules.

Pick the problem closest to yours. The helper shows who to contact first, and what to have ready when you do.

The phone numbers come from the Illinois Commerce Commission and the Citizens Utility Board. This is a guide, not legal advice, and your signed agreements control.

The numbers in one place

• Base Power: send it in writing. Base says it answers complaints "typically within one day and always within fourteen days."
• Illinois Commerce Commission (ICC): (800) 524-0795. It takes complaints about power suppliers.
• Illinois Attorney General, northern Illinois: (800) 386-5438.
• Citizens Utility Board (CUB): (800) 669-5556. It is a nonprofit group that speaks up for utility customers.
• Your 10-day window: you can cancel the switch to Base's power within 10 days of the date on ComEd's letter. What the battery deal charges if you leave later is on our Base vs Energywell guide.

Base has held a Texas license since March 2024, so most of its record is there. Texas grades every power company on complaints, from 1 to 5 stars. The grade counts complaints for every 1,000 customers, so a big company and a small one are judged the same way.

In September 2026, the Public Utility Commission of Texas gave Base 2 of 5 stars. It calls that group "Higher than Average Rate of Complaints." The grade covers March 1 to August 31, 2026, when Texans filed 11 complaints about Base.

Texas has different rules and a different grid. Still, it is the same company, and billing is the biggest group of complaints there. So check your first Base bill line by line. Our Base Power review for Texas scores the company on the same public records.

These are promises you can hold Base to, because they are in its own documents. We read them on October 25, 2026.

Base installs in two visits, and the crew places the battery outside near your meter. The steps, the size and the noise are on our Base battery guide.

What owners report is mixed and hard to check. Some posts on public forums say Illinois installs took months. We could not verify them, and Base posts no Illinois wait time. So ask for a written install date before you pay, and save every message.