Short answer
Solar doesn't complicate a sale nearly as much as people expect — but the paperwork does take time, and the single biggest cause of last-minute stress is telling us too late. Get in touch as soon as your house is listed, or at the latest the day you accept an offer. A month is comfortable. A week before closing is where it gets tight.
Almost none of this needs anyone to come out. It's forms, records, and account changes.
Step 1 — Tell us early
Call or submit a request and let us know you're selling. We'll need:
- Your expected closing date
- The buyer's name and contact details, once you have them
- Your Site ID, if you have it handy
From there we'll tell you exactly which forms apply to your situation, because it depends on how the system was paid for.
Step 2 — Know how your system was paid for
This determines everything else, and it's worth being certain rather than assuming. Check your original contract.
| If you | What happens at sale |
|---|---|
| Paid cash / own it outright | Simplest case. The system conveys with the house. We transfer the warranty and the monitoring account to the buyer. |
| Financed with a solar loan | You'll either pay the loan off at closing or arrange for the buyer to assume it — that's between you, your lender, and the buyer. Contact your lender early; assumption approvals take time. We handle the warranty and monitoring side either way. |
| Have a lease or power purchase agreement | The agreement transfers to the buyer, and the company that holds it runs that process with its own forms and timeline. Start that one first — it's usually the longest pole. |
Step 3 — The transfer paperwork
We'll send you a transfer of ownership form. It's short. Both you and the buyer sign it, and it does two things: moves the remaining warranty coverage to the new owner, and gives us authority to talk to them about the system.
Alongside that, we'll transfer the monitoring account so the buyer can see production in the app from day one. You'll lose access to the site once that happens, so if you want a record of your production history, take screenshots or download it beforehand.
Step 4 — What your buyer, realtor, and appraiser will ask for
Getting these together up front prevents most of the delays we see. Ask us for anything you can't find:
- Your original contract and system specifications — panel and inverter make, model, and count, and system size in kW
- Warranty documents, both ours and the manufacturers'
- Production history — ideally a full year, which appraisers and buyers both like to see
- Your interconnection agreement with the utility
- Permits and the final inspection sign-off
- Documentation of any incentives claimed, if the buyer's attorney asks
A note for your realtor. An owned, paid-off system is an asset and should be presented as one — with the production history and the remaining warranty term attached. Buyers get nervous about solar mostly when the paperwork is missing and nobody can answer their questions. A tidy folder answers them.
Step 5 — The utility account
Your net metering arrangement is tied to the utility account, not to the system. When the buyer opens their own account with National Grid, NYSEG, RG&E, or Central Hudson, they need to tell the utility there's solar on the property so the account is set up correctly.
Two things worth knowing: any net metering credits you've banked generally don't follow you to a new address, and they don't get paid out in cash — so if you have a choice about timing, selling with a healthy credit balance is a small gift to the buyer rather than money you recover. And if the buyer's account isn't set up correctly at the start, their first bills will look wrong and everyone will assume the solar is broken. Worth mentioning to them.
Buying a house that already has our system on it?
Welcome — and get in touch. We'll set you up with monitoring access, confirm what warranty coverage transferred with the house, and walk you through how the system works. There's no charge for that conversation. If the previous owner never filed a transfer form, we can usually sort it out after the fact; it's just easier before.
Let's get it started.
Upstate: (518) 478-8365 · Hudson Valley: (845) 681-4088 · info@kasselmansolar.com
Submit a request online — include your closing date and your Site ID, and we'll send the right forms back.
Last verified: August 2026