Claim checklist for SunPower, Sunnova and PosiGen homeowners
Last reviewed: October 12, 2026
Checking a production guarantee takes six steps: find your servicer, find the guarantee in your contract, get your actual output for the same period, do the arithmetic, send a written request, and keep proof. The dates that matter are the ones in your own contract.
Six steps, in order.
- 1. Find out who services your lease nowLook at your latest bill or payment notice. The company named there is the one to write to. See who your servicer is now.
- 2. Find the production guarantee in your contractNote the guaranteed kWh, the true-up interval, the credit rate per kWh, and any claim window the contract states. If the terms are unfamiliar, read what a solar production guarantee true-up is.
- 3. Get your actual output for the same periodUse your Enphase or SolarEdge monitoring account, or a production export. Use the exact dates of the true-up period, not the calendar year.
- 4. Do the arithmeticGuaranteed kWh minus actual kWh, less any surplus carried over from earlier periods, times your rate. The shortfall estimator does a simplified version, and the methodology page shows the full calculation.
- 5. Send a written request to the servicerWrite down the contract provision, your numbers and the credit you are asking for. Routes: SunStrong, Sunrun, Renewbrook.
- 6. Keep proof and follow upKeep a copy of what you sent and when. If there is no response after a reasonable time, follow up in writing (see how long a claim takes). You can also file a Better Business Bureau complaint; we make no claim about what it will achieve.
The two filing dates we can source.
| Date | What happened | Where it comes from |
|---|---|---|
| August 5, 2024 | SunPower Corporation files Chapter 11 (No. 24-11649, Bankr. D. Del.). | CourtListener docket |
| June 8, 2025 | Sunnova Energy International files Chapter 11 (No. 25-90160, Bankr. S.D. Tex.). | CourtListener docket |
The deadline that applies to you is in your contract.
We have not found a sourced deadline for production-guarantee credits, so we do not list one. The dates to look for in your own paperwork are your true-up date, any stated claim or notice window, and any anniversary your agreement uses for payments. Our guide to checking whether your production guarantee was met explains how to compare your output with your guarantee.
If your contract states a window, count from the end of the true-up period and send your request well inside it. This is general information, not legal advice.
Not legal advice. Not affiliated with Sunnova, SunPower, PosiGen, SunStrong, Sunrun, or Renewbrook. You send the letter yourself.