8 California Solar Contract Terms That Cost Homeowners More Than the Panels Save

A California audit of 153 solar contracts found violations of state licensing law in more than 90% of them.

Nine of every ten failed the state’s rules.

These are the contract terms turning some California solar deals into a net loss.

Note: This is general information, not financial or legal advice. Solar contract terms, financing structures, and California net metering policy are all subject to change.

1. Your Lease’s Escalator Clause

Your solar lease or power purchase agreement (PPA) almost always carries an escalator clause built into the payment terms.

An escalator clause raises the lease or PPA payment automatically, every year, for the life of the contract, no renegotiation required.

California’s own consumer guide pegs a typical escalator at 1% to 3% a year and warns homeowners to be cautious of anything higher.

It’s compounding, not flat.

On a $150 monthly payment, a 3% escalator alone pushes that bill past $260 a month by year 20.

The clause is legal, but it’s part of an industry where a 2021 audit of 153 California solar contracts found licensing-law violations more than 90% of the time.

2. Your Loan’s Hidden Dealer Fee

Your solar loan’s sticker price and its actual loan principal can be two very different numbers.

The Consumer Financial Protection Bureau covered many of the same lenders who write California solar loans in a nationwide report.

It found lenders routinely roll a “dealer fee,” sometimes labeled a program or platform fee, straight into the loan amount, typically 10% to 30% of the system’s cash price, and sometimes more.

A $30,000 system can turn into a $39,000 loan before a single panel goes on the roof.

That’s thousands of dollars extra.

Nobody signs the contract expecting that gap.

The CFPB’s own report found the markup usually sits in small print, while marketing materials feature the discounted “net cost” number in bold.

3. The Lease That Doesn’t Transfer

Your California solar lease or PPA doesn’t just disappear when you sell the house.

Sell before the contract ends, and the state’s own consumer guide lays out two paths.

The homeowner can pay off the remaining lease or PPA value, sometimes running into the thousands.

Or a buyer willing to qualify can take it over instead.

Not every buyer wants that.

A mortgage lender has to sign off too, and a buyer with shakier credit than the seller can stall the sale outright.

A homeowner who bought their system outright skips this problem completely, since a paid-off system is just part of the house.

4. Your Outdated Savings Estimate

Your solar contract’s projected savings often lean on net metering math that California has already rewritten.

California’s Public Utilities Commission adopted the Net Billing Tariff, the state’s update to net energy metering (NEM) widely known as NEM 3.0, and new solar customers now receive roughly a quarter of the retail electricity rate for power their panels send back to the grid.

The change took effect in April 2023, a steep cut from the net metering program it replaced.

The math changed.

A contract’s original payback promise, built on the old export rate, can stretch years longer than what a homeowner was shown at signing.

5. Your Loan on the Tax Bill

In California, your solar loan can ride on the property tax bill instead of a normal monthly statement.

That happens when it’s financed through a Property Assessed Clean Energy (PACE) loan, a financing structure sometimes marketed under a program name like HERO.

The county folds the payments into the property tax bill, due on the same schedule as the taxes themselves.

Fall behind, and the risk isn’t a ding on a credit report.

It’s the same delinquency and foreclosure process a county uses for unpaid property taxes.

Los Angeles County knows this firsthand.

It settled PACE-related lawsuits for $12 million after homeowners said contractors sold them financing they didn’t understand.

Then a property tax bill arrived thousands of dollars higher.

It skips the mortgage lender.

A PACE lien also sits ahead of other debt on the property, which can complicate a refinance or a sale down the road.

6. Your Mandatory Arbitration Clause

Your solar contract likely includes a mandatory arbitration clause, agreed to the moment you sign.

That clause forces any dispute out of a courtroom and into private arbitration, no judge, no jury, and often no class action.

A California appeals court ruled on exactly that kind of clause in a 2021 case, Cabatit v. Sunnova Energy Corp., after a couple who bought solar panels through a door-to-door sale challenged the clause in court.

The court sided with the homeowners, calling the clause one-sided because it let the company sue in court while the customers were stuck in arbitration.

One-sided, the court said.

That ruling didn’t erase arbitration clauses from California solar contracts.

It just proved how common, and how skewed, they can be.

7. The Loan After the Installer

Even if the company that sold you the system doesn’t survive to service it, your solar loan or lease payment keeps coming due.

San Jose-based SunPower filed for Chapter 11 bankruptcy in August 2024, laying off more than 350 California employees.

Bay Area customers told reporters their systems stopped working right.

SunPower canceled repair appointments and still expected payment.

California’s Contractors State License Board had already filed its own accusation against the company months before the bankruptcy, alleging it left an open access hole in a customer’s garage ceiling and declined repeated chances to fix damaged roof shingles.

The accusation says fixing one Piedmont family’s roof alone cost more than $22,000.

Payments didn’t stop.

The financing is a separate contract from the installation, and it survives even when the installer doesn’t.

8. Your Loan’s Prepayment Cliff

Your solar loan can carry a prepayment requirement that a salesperson rarely mentions out loud during the pitch.

The same consumer-finance report cited above found many loans require a lump-sum payment, often close to 30% of the loan, by around month 19.

Miss it, and the loan resets.

Skip that prepayment, and the loan re-amortizes into a bigger, permanently higher monthly payment for the rest of the term.

That 30% prepayment usually lines up with the size of the federal solar tax credit, money a homeowner is expected to redirect straight into the loan the same year they claim it.

They’re two bills disguised as one.

Storage’s Net Billing Outcome

California homeowners pairing a battery with their solar system are seeing a different outcome under the state’s Net Billing Tariff.

Batteries aren’t required.

Storing the extra power instead of selling it back to the grid at the lower export rate, then using it during expensive evening hours, changes the payback math.

For some solar-plus-storage systems, that payback period now runs shorter than a solar-only system’s under the same rules.

The contract terms above still apply to a battery loan too, so the same homework applies.

A homeowner comparing quotes today should ask whether the payback estimate on the paper in front of them assumes the old export rate or the new rate, since that single assumption can swing the numbers by years.