Sunnova customers in Illinois: what happened, and who services your system now

What happened

Sunnova TEP Developer LLC filed for bankruptcy on 1 June 2025, and the parent, Sunnova Energy International Inc., filed a Chapter 11 petition in the Southern District of Texas on 8 June 2025, lead case 25-90160. Solaris completed its acquisition on 4 September 2025 and the court confirmed the plan on 12 November 2025. Sunnova Energy Corporation appears on the Illinois Shines list of companies that have ceased or limited operations and on the Illinois Power Agency's list of out-of-business entities that received complaints in 2025.

Sources:Kroll Restructuring Administration, Sunnova case site (Checked 18 September 2026); Solar Power World, Sunnova subsidiary files bankruptcy in Texas (3 June 2025); Business Wire, acquisition completion announcement (4 September 2025); Illinois Shines, Stranded Customer Resources (Updated August 2026); Illinois Power Agency, 2025 Annual Consumer Complaints and Disciplinary Actions Report (27 February 2026).

What it means for your warranty

Your workmanship warranty is probably gone. When a company liquidates, its warranties are unsecured liabilities and generally do not survive the bankruptcy.

Your equipment warranty probably survived. Your panels and inverter are covered by the manufacturer, a separate company that still exists. Most major manufacturers are still honouring them. What you lost is the person who diagnoses the fault and files the claim.

Who took over, if anyone

Solaris completed an acquisition of Sunnova on 4 September 2025 under the confirmed Chapter 11 plan. Most Sunnova customers in Illinois hold a lease or power purchase agreement, and that agreement still exists with whoever now owns the portfolio. Check the Kroll case site and your most recent statement for the current servicer before you pay anyone else to look at the system.

What you can still do

The state's Solar Restitution Program. The Illinois Power Agency's Solar Restitution Program pays up to $30,000 on a project of 25 kW or less and up to $50,000 on a larger one, to customers harmed by an Illinois Shines Approved Vendor or Designee. By June 2026 it had paid about $473,000 to 170 customers. The program decides eligibility, not us, and most affected homeowners have never heard of it.

Manufacturer warranty claims. Your modules and inverter carry their own warranties from the manufacturer, and those companies are still trading. Find the model and serial numbers on the inverter label and in your closing paperwork. A claim needs a diagnosis first, and the manufacturer will usually supply the replacement part and leave the labour to you.

Monitoring access. If your installer set up the monitoring account, get it into your own name now, while the manufacturer's support desk can still verify you as the owner. Enphase, SolarEdge, Fronius and SMA each have a process for handing a system to the homeowner. Without it, nobody can see what the system is doing.

If you lease the system or buy its power under a PPA, the owner of that agreement is responsible for keeping it producing. Put the request in writing to the servicer on your statement and keep the date.

Nothing on this page is legal advice. A bankruptcy has deadlines, and a lawyer or the case trustee's site is the place to confirm them.