Solar Panels California: The Complete 2026 Guide to Costs, Laws, Incentives & Your Rights

California has more rooftop solar than any other state. It also has some of the most confusing solar rules in the country right now. This guide answers the questions people search for most: how much solar panels California homes actually cost in 2026, what the net metering legal fight means for you, whether solar is required on new homes, and what your rights are if a solar company treats you unfairly.

1. The Net Metering Legal Battle, Explained

For almost 30 years, California let solar owners sell extra power back to the grid at close to the full retail price. This program is called Net Energy Metering (NEM). It’s the main reason so many California homes have solar today.

In December 2022, state regulators (the California Public Utilities Commission, or CPUC) cut that payback rate by about 75%. The new rules are called NEM 3.0. They apply to anyone who applied for solar after April 2023. Instead of getting close to the retail rate for extra power, new solar owners now get about 5 to 8 cents per kilowatt-hour (kWh) — close to what the utility pays to buy power elsewhere.

Three environmental groups sued, saying regulators broke state law by not fairly weighing the benefits of rooftop solar. Here is how the fight has gone so far:

So today, NEM 3.0 is still the law. It has survived two court reviews. The case is waiting on the California Supreme Court again, with no set date for a final answer.

2. Will NEM 3.0 Be Overturned?

Courts have sided with regulators twice. But the California Supreme Court already ruled once that regulators are not automatically protected from legal challenges. That’s a real opening for solar advocates. Still, an opening is not the same as a win. If you’re deciding whether to go solar now, don’t wait years for a court ruling that might not even go the way you hope.

3. How Much Do Solar Panels Cost in California in 2026?

The exact price depends on your roof size, your energy use, and where you live. Coastal cities like Los Angeles and San Francisco often cost a bit more per watt than inland cities like Bakersfield or Fresno, mainly because of higher labor and permit costs.

In Bakersfield specifically, prices tend to run a little lower than coastal cities: a 5 kW system usually costs $12,000–$17,000, and a 10 kW system runs $25,000–$30,000. Bakersfield gets over 2,000 hours of sunshine a year and has high electric rates, which is why solar tends to pay off fast there — especially when paired with a battery.

4. California Solar Incentives, Rebates & Tax Credits in 2026

Federal solar tax credit: ended for homeowners

The federal Investment Tax Credit (ITC) used to cover 30% of your solar installation cost. A law passed in July 2025 ended this credit for homeowner-owned systems installed after December 31, 2025. If you lease your system or use a power purchase agreement (PPA), the company installing it may still claim a related business credit and pass some savings to you — but you will not own the system.

Property tax exclusion (still active, but has a deadline)

California’s Active Solar Energy System Exclusion means the value your solar system adds to your home is not counted when your property is reassessed. Normally, home improvements raise your tax bill. Solar does not.

Battery and low-income rebates

• Self-Generation Incentive Program (SGIP): Pays a rebate per kWh of home battery installed. Most standard SGIP rebates closed at the end of 2025, but equity programs for high fire-risk and low-income households may still be open.
• DAC-SASH: Offers free or deeply discounted solar to income-qualified homeowners in California’s most disadvantaged communities. It runs through 2030.
• Local utility rebates: Some city utilities, like Alameda Municipal Power, offer smaller one-time rebates for income-qualified homeowners. Check with your local utility before you sign a contract.

5. Is Solar Worth It in California? Payback & Savings

Losing the federal tax credit added roughly one to two years to the average payback period. But California’s electricity rates are among the highest in the country — often 30 to 47 cents per kWh depending on your utility — so homegrown power still saves real money. Homeowners on SDG&E, which has some of the highest rates in the state, often see the fastest payback.

Your own payback period depends on:

• How much electricity you use each month
• The size of the system you need
• Shade on your roof
• Whether you add a battery
• Which utility company you use

Pairing solar with a battery usually shortens payback, because you store cheap midday solar power and use it during expensive evening hours instead of selling it back at NEM 3.0’s low rate.

6. How Much Sunshine Does California Get for Solar?

California is one of the sunniest states in the country, which is a big reason solar works so well here:

• Most of the state gets 250 to 290 sunny days a year, compared to a national average of 210.
• California averages over 5.5 peak sun hours a day in many areas — among the best in the U.S.
• An estimated 91% of California buildings have roofs suitable for solar panels.

7. Solar Financing Options: Cash, Loan, Lease, or PPA

8. Does California Require Solar Panels on New Homes?

Since 2020, California’s building code has required solar on most new single-family homes and low-rise apartment buildings. In 2023, the rule grew to cover many new commercial buildings too — offices, schools, warehouses, and larger apartment complexes.

A few properties are exempt:

• Homes with very small or heavily shaded roofs
• Buildings without a livable, permanent addressable space
• Some seasonal or non-residential structures

Builders say the mandate adds roughly $9,500 to the average new home’s cost, though that’s usually offset over time by lower electric bills and the property tax break described above.

9. What Is the New California Law on Solar Panels?

A few different rules have shifted the ground for California solar owners recently:

• SB 710 (signed October 2025): Makes the property tax exclusion last for the life of the system, not just until you sell your home.
• NEM 3.0 remains in effect: The reduced export rates are still the law for anyone who applied for solar after April 2023, despite two rounds of legal challenges.
• Property tax exclusion sunset: Set to expire for new installs after December 31, 2026, unless extended again.
• Federal solar tax credit expired: The 30% homeowner credit ended December 31, 2025. Systems installed in 2026 no longer qualify, though some business-owned lease and PPA pathways still exist.

In short: California is still pro-solar on paper — it requires solar on new construction and protects property tax value — while the financial payback for new solar owners has gotten slower because of NEM 3.0 and the lost federal credit.

10. Can I Sue My Solar Company in California?

A few things worth knowing before you start:

• Check your contract for an arbitration clause. Many large solar companies require arbitration instead of court.
• California requires solar companies to give you a signed disclosure document before you sign, explaining your rights. If they skipped this step, it can strengthen your case.
• Common valid complaints include: systems that never worked, false savings promises, missed permits or inspections, and unlicensed contractors.
• Homeowners 65 or older get 5 business days (instead of 3) to cancel a contract signed at home.

11. Should I Lock My Solar Control Panel in California?

Your solar control panel (also called the inverter or main disconnect) has an emergency shutoff that firefighters need fast access to during a fire or electrical emergency. A locked panel can cost precious minutes and can put you out of step with California fire and building codes.

If you’re worried about theft or tampering instead, better options include:

• Motion-activated lights and a visible camera near the equipment
• Tamper-resistant (not fully locked) mounting hardware
• Keeping the area well-lit and visible from the street

Residential solar theft is genuinely rare compared to large commercial solar farms, so most homeowners don’t need to do much beyond basic visibility and good lighting.

12. Solar Panel Repair and Maintenance in California

Solar upkeep in California is usually lighter than people expect, but not zero:

• Cleaning: Rain handles most dust. In dry inland areas like the Central Valley, panels may need a rinse once or twice a year if output drops.
• Inspections: Have a licensed technician check wiring, connections, and the inverter every few years, especially past the 10-year mark.
• Common repairs: loose racking after wind, rodent damage to attic wiring, and inverter failure — inverters typically last 10–15 years, shorter than the 25-year panel warranty.
• Warranty coverage: Most panels carry a 25-year performance warranty, but installer workmanship warranties are usually much shorter (5–10 years). Check who covers what before you sign.

If your installer goes out of business, the panel manufacturer’s warranty may still apply, but workmanship warranties often become worthless. This is one more reason to check a company’s track record before hiring them.

13. Choosing a Solar Company in California

Before you sign with any installer, whether a large national brand or a local company:

• Confirm the contractor’s license is active on the CSLB website.
• Get at least three quotes so you can compare price per watt.
• Ask exactly what the workmanship warranty covers and for how long.
• Read the arbitration clause in the contract before you sign, not after.
• Ask whether the quoted savings assume NEM 3.0 export rates or the old, higher NEM 2.0 rates — some sales pitches still use outdated numbers.

14. The Biggest Misconception About California Solar Right Now

The myth: “California is turning against solar.”

That’s an oversimplification. California still legally requires solar on most new homes, still protects solar system value from property tax increases, and courts haven’t struck down either the mandate or the tax break. What’s actually changed is the math on selling power back to the grid — NEM 3.0 cut those export payments, and losing the federal tax credit was a real financial hit for new solar owners.

But solar paired with a battery still saves most California homeowners tens of thousands of dollars over 25 years, because the state’s electricity rates remain among the highest in the country. The policy environment is tougher than it was five years ago. It hasn’t collapsed.

Bottom Line

The net metering legal battle over NEM 3.0 is still playing out, and NEM 3.0 remains the law after surviving two court challenges, with a third round now pending at the California Supreme Court. Solar is still required on most new California homes, the property tax exclusion is still active (but has a real deadline), and a typical system now costs $18,000–$26,000 and pays for itself in about 6–9 years. Homeowners who get wronged by a solar company have solid legal paths — from a CSLB complaint to small claims court to a full lawsuit. None of this means solar is a bad idea in California. It means the numbers work differently than they did a few years ago, and pairing solar with a battery matters more than ever.

Frequently Asked Questions