How Much Does Solar Cost in California in 2026?

The 30% federal solar tax credit expired on December 31, 2025. Most online cost calculators still assume it's active. Here's what California solar actually costs in 2026, by system size, by utility, with verified pricing and an honest look at whether it's still worth doing without the federal incentive.

The honest baseline cost in 2026

Most cost guides for California solar fall into two camps: the marketing-driven ones that headline a low per-watt number to make the math look attractive, and the installer-quoted ones that include everything and look expensive. The actual range is wider than either side admits.

Based on May 2026 quote data from EnergySage, the average installed cost in California is $2.53 per watt. SolarReviews shows $3.14 per watt for the same period. Direct installer quotes in 2026 from licensed California contractors more commonly land in the $3.00 to $4.50 per watt range when permits, interconnection, and panel upgrades are included. Lower per-watt advertisements often exclude these line items, which is why a "$2.50/W" quote can turn into $3.80/W once required work is added back.

For a typical California household, the system size needed to offset most of the electric bill is around 7 to 9 kW. That puts total installed cost roughly between $17,500 and $27,000 before any incentives. Your actual number depends on roof condition, panel quality, whether you need a main service panel upgrade, your utility's interconnection requirements, and whether you're adding battery storage.

What changed: the federal 30% credit is gone

The Residential Clean Energy Credit under Section 25D was the 30% federal tax credit that homeowners could claim against the full cost of a solar system, including installation. It was originally extended through 2032 under the Inflation Reduction Act. The One Big Beautiful Bill Act, signed into law on July 4, 2025, terminated this credit nearly a decade early.

The relevant statutory language is short and final: any expenditures made after December 31, 2025 no longer qualify. The IRS clarified that this applies based on when installation is completed, not when the contract is signed. If your system was placed in service by December 31, 2025, you can claim the credit on your 2025 tax return. If installation finished on or after January 1, 2026, you cannot.

There is no phase-down. There is no partial credit. For cash and loan purchases in 2026, the credit is simply zero.

The lease and PPA workaround

The credit is dead for homeowner-owned systems but not for the underlying solar industry. Section 48E, the commercial Investment Tax Credit, still allows third-party owners of solar systems to capture 30% through projects that begin construction by July 4, 2026 and meet certain in-service deadlines.

This is why you'll see solar leases and Power Purchase Agreements (PPAs) being aggressively marketed in 2026. Under these arrangements, a financing company owns the solar system on your roof. They claim the 30% commercial credit. In theory, they pass the savings through to you as lower monthly lease payments or a lower per-kWh rate on the power your system generates.

Whether the math actually works for you depends on the specific terms of the lease or PPA. Some things to look at carefully:

• Escalator clauses. Many leases include a 1% to 3% annual price increase. Over 25 years that compounds significantly.
• Buyout terms. What does it cost to buy the system at the end of the lease or if you sell your house?
• Performance guarantees. Does the lease compensate you if production falls short?
• Transferability. If you sell the house, will the lease transfer to the new owner without complications? Some real estate transactions get held up by complicated solar leases.
• The actual price per kWh. Compare it to your current utility rate and what it's likely to be in 5, 10, 15 years.

The honest read: leases and PPAs work better for some households than ownership now does, but they're not strictly better for everyone. Run the long-term math, don't just compare the first-year monthly payment.

What state and local incentives still exist

California does not currently offer a statewide solar rebate available to all homeowners. The main remaining programs are targeted and conditional:

DAC-SASH (Disadvantaged Communities Single-Family Solar Homes)

For qualifying low-income households in designated disadvantaged communities, DAC-SASH provides an upfront rebate of up to $3 per watt for solar installations. For a typical 7 kW system, that's up to $21,000 in rebate, which can essentially cover the full installed cost depending on the contractor. Eligibility is strict and based on income, residential property type, and being located in a CalEnviroScreen-designated disadvantaged community.

SGIP (Self-Generation Incentive Program)

SGIP doesn't cover solar panels, but it provides rebates for paired battery storage. Equity-tier customers can receive $850 to $1,000 per kWh of storage capacity, which can substantially offset a Powerwall or similar battery. Standard residential customers get smaller per-kWh rebates depending on funding tier and equity adders.

California Property Tax Exclusion

Solar installations are excluded from your property tax assessment under California's Active Solar Energy System Exclusion. This was extended through 2027. Adding solar increases your home's market value but doesn't raise your property tax bill, which is a meaningful long-term benefit not always discussed in cost comparisons.

Net Energy Metering under NEM 3.0

NEM 3.0 isn't a rebate, but it determines how much your solar exports are worth, which directly affects payback. Under NEM 3.0, export compensation rates dropped significantly compared to NEM 2.0. The system rewards self-consumption: solar paired with a battery that lets you use your own power during expensive evening hours produces much better economics than solar alone exporting to the grid during cheap midday hours. This is why most California solar quotes in 2026 strongly push solar plus battery, not solar alone.

Community Choice Aggregator (CCA) and local programs

Some CCAs and cities offer additional incentives or net billing arrangements that beat the standard utility offering. MCE, Silicon Valley Clean Energy, Peninsula Clean Energy, and others have varied programs. If you're served by a CCA, check directly with them, because these incentives don't always show up in standard rebate lookup tools.

Cost and payback by California utility

Your utility matters enormously because it determines both your retail rates (how much you save on each self-consumed kWh) and your export compensation (how much grid-exported solar is worth). Here's the rough picture for typical 7 kW residential systems in 2026:

These are rough averages and your specific situation can vary significantly. A few patterns worth noting:

PG&E, SCE, and SDG&E customers see the fastest paybacks because their electricity rates are the highest in California. The savings per kWh of self-consumed solar are larger. Solar still makes financial sense in these territories even without the federal credit, especially when paired with a battery to maximize self-consumption under NEM 3.0.

SMUD customers see slower paybacks because their rates are roughly half what the investor-owned utilities charge. The avoided cost per kWh is smaller, so the system takes longer to pay back. Solar can still pencil out, but the case is weaker than in IOU territory. Many SMUD customers focus instead on heat pumps and other electrification upgrades, where SMUD's rebates are actually generous.

LADWP is somewhere in the middle. Rates are higher than SMUD but lower than the IOUs. The case for solar is decent but not as strong as PG&E territory.

One more thing about payback math: the numbers above assume a cash purchase with no federal credit. If you finance with a loan, factor in interest. If you go with a lease or PPA, the relevant question becomes monthly cash flow against your projected utility bill, not payback in the traditional sense.

Is solar still worth it in California without the federal credit?

The honest answer: in most California utility territories, yes, but the case is meaningfully weaker than it was in 2025.

In 2025, with the 30% federal credit, a typical $22,000 system became $15,400 out of pocket. With California's high electricity rates, that paid back in roughly 6 to 8 years for IOU customers. In 2026, that same $22,000 system is $22,000 out of pocket. Payback stretches to 9 to 11 years for most cash buyers in IOU territory, and 13+ years in SMUD or LADWP territory.

That's still a positive return over a 25-year system lifetime. But it's slower, the upfront cost is harder to swallow, and the calculation is now genuinely sensitive to assumptions about future utility rate increases. If California electricity rates keep rising at historical pace, the case for solar gets stronger. If they flatten, it gets weaker.

A few honest caveats:

• Solar plus battery is now the standard recommendation, not solar alone. NEM 3.0's compensation structure punishes pure grid-export systems. A battery shifts your self-consumption to high-rate evening hours and dramatically improves the financial case. Most quotes you'll receive in 2026 will assume battery.
• The lease/PPA option deserves serious consideration. Until July 2026, third-party owners can still claim the 30% credit and pass savings through. For households that don't want a $25,000+ upfront expense, this may pencil out better than ownership.
• If you can wait, watch for legislative changes. The 25D expiration was politically driven. A future Congress could reinstate some form of residential solar credit. There's no concrete proposal close to passage right now, but the policy landscape isn't stable.
• If your roof needs replacement, do it before solar. Removing and reinstalling panels for a future roof replacement is expensive. Roof + solar at the same time is the right order of operations.

What to ask installers for an honest quote

Solar quotes vary widely in what they include. Here's a short list of things to confirm in writing before signing anything in 2026:

1. Is the federal tax credit included in the quoted savings? If yes for a 2026 install, that quote is wrong. Either the installer is uninformed or being misleading. Look elsewhere.
2. What does the quote include? Get itemized: panels, inverter, racking, electrical work, main panel upgrade if needed, permits, interconnection fee, monitoring.
3. What's the per-watt price after everything is included? This is the comparable apples-to-apples number across installers.
4. What's the production estimate, and what model produced it? Reputable installers use PVWatts or similar. Be skeptical of unrealistic production estimates that make payback look better than it should.
5. What's the warranty? Panel warranty (typically 25 years), inverter warranty (10-25 years), workmanship warranty (often 5-10 years from the installer). Longer is better.
6. If proposing a lease or PPA, what's the actual long-term cost? Get a 25-year cash flow projection from the installer, then compare it to projected utility costs over the same period.
7. Are you NABCEP-certified? What's your C-46 license number? The C-46 is the California solar contractor license. Verify it on the CSLB site before signing.

Get at least three quotes. The variance between installers in California is significant, often 30% or more for similar equipment and system sizes. A single quote is not enough information to make a $20,000+ decision.

The honest summary

Solar in California still pays for itself in most utility territories over a 25-year system lifetime, even without the federal credit. But the math is tighter, the payback is slower, and your specific utility and roof make a much bigger difference than they did when a 30% credit was smoothing over the differences.

If you're in PG&E, SCE, or SDG&E territory with a south-facing unshaded roof and high electricity usage, solar with battery storage probably still makes sense in 2026, and you should get at least three itemized quotes from licensed California installers.

If you're in SMUD or LADWP territory, the case is weaker and worth analyzing carefully. Heat pump conversions or weatherization may offer better returns at lower upfront cost.

If your household income qualifies for DAC-SASH, solar can be effectively free, and the program is worth exploring before considering anything else.

For a personalized estimate using current 2026 California utility rates and the post-25D incentive landscape, run the solar savings estimator. It produces a starting point for getting installer quotes.