Oregon’s first solar consumer law is in effect.
What it changed for homeowners.

Oregon now has a law written specifically for residential solar sales. House Bill 4029 was signed on March 5, 2026, and took effect on June 5, 2026. Energy Trust of Oregon describes it as the state’s first consumer protection law for solar electric systems.

The law covers sales, leases, and power purchase agreements (PPAs). It tells sellers what they must put in writing before you sign, gives you three business days to cancel an installation contract, and makes breaking these rules an unlawful trade practice. It applies to solicitations made and installation contracts signed on or after June 5, 2026.

What sellers must disclose before you sign

Before a sale, lease, or PPA is final, the seller must give you a plain-language disclosure of no more than four pages, in at least 10-point type, with a space for you to initial each item. If the pitch is oral, it must cover the same points. Among other things, the disclosure must include:

• The full purchase price with every fee itemized, and the exact dealer fee paid to a lender.
• The system size, a first-year production estimate made with an industry-standard tool, and the expected yearly decline in output.
• A good-faith first-year savings estimate, plus the assumptions behind it, such as current utility rates and assumed rate increases.
• Who receives any tax credits and bill credits, and a tax warning.
• A statement that the system gives no backup power during an outage unless it has battery storage.
• For leases and PPAs: the term, first-year payments, any escalator rate, total payments over the term, all fees, whether a fixture filing will be recorded, and what happens if you sell the home.

Contract and licensing changes

The installation contract itself must list itemized work, the total cost and cost per watt, the payment schedule, equipment brands and models, warranty terms, financing terms including the APR and dealer fee, and the names of subcontractors. It must say whether the panels will be removed and reinstalled if your roof needs work. You must receive a complete copy when you sign.

On licensing, the seller cannot sign or perform an installation contract unless it, and anyone who installs, repairs, or maintains the system for it, holds the license that fits the work. Your utility must also approve the interconnection before installation starts.

One more change matters if your contract is sold to a finance company. A buyer or assignee of an installation contract is subject to the same claims and defenses you could raise against the original seller.

Your three-day right to cancel

You can rescind an installation contract within three business days after you sign it. Once you do, the company cannot enforce the contract, charge for labor or materials, or charge a cancellation fee. It cannot collect fees during those three days, and it must release any lien or security interest within 20 days after it receives your written notice. Send notice by email or certified mail to the contact named in the contract. An emailed notice counts as of the day you send it.

The law covers installation contracts over $1,000. See the Oregon solar law page for the details and agency contacts, or use our cancellation letter.

Who enforces it

The law adds its rules to Oregon’s Unlawful Trade Practices Act. It also bans deceptive statements about cost, financing, or contract terms when soliciting a sale. Under that Act, the Oregon Department of Justice and district attorneys can take action. A homeowner who suffers a loss that can be measured may also be able to sue for actual damages or $200, whichever is greater, plus attorney fees.

Licensing problems go to the Construction Contractors Board, which licenses contractors and handles disputes with them. Before you complain, write down which rule you think was broken and gather the disclosure, the contract, and any texts or emails that show what you were told.

If you signed before June 5, 2026

HB 4029 does not apply to contracts signed before it took effect, and Energy Trust notes it does not solve problems with companies that stopped responding or left systems unfinished. You still have some paths:

• Misrepresentation: the Unlawful Trade Practices Act prohibited many deceptive sales practices before HB 4029. If you were misled about savings, credits, or payments, you may have a claim. Read misled by a solar salesperson.
• Contractor complaints: the Construction Contractors Board takes disputes with licensed contractors, but it has deadlines and a pre-complaint notice step. Check them on our Oregon page.
• Recent signings: if you signed at home within the last three business days, the federal Cooling-Off Rule may let you cancel, with some exceptions.

Gather your contract and sales materials first with our document checklist, then tell us what happened.

Keep reading

• Oregon solar law and agency contacts
• Misled by a solar salesperson
• Solar cancellation letter