Is Solar Worth It in California in 2026? The Honest Post-Tax-Credit Answer

Is solar worth it in California in 2026?

For most Southern California homeowners, yes — solar is still worth it in 2026, even with the federal tax credit gone: our 2026 modeling projects a simple payback of roughly 8–12 years for a typical 8 kW solar-plus-battery cash purchase in SCE territory, and faster at SDG&E, against average retail rates of 34.5¢/kWh (SCE) and 45.7¢/kWh (SDG&E) that roughly doubled over the last decade. The verdict survives the subsidy's loss because the utility bill, not the tax code, was always the real case for solar in California.

That said, a large share of solar content online still tells you to count on a 30% federal tax credit. That is wrong for purchased residential systems in 2026: Congress eliminated the Section 25D Residential Clean Energy Credit for systems installed after December 31, 2025, under the One Big Beautiful Bill Act (OBBBA), signed July 4, 2025. The IRS states it plainly: the credit is not available for any property placed in service after December 31, 2025.

So the 2026 question is not "does the tax credit make solar cheap?" It is "do California electric rates make the utility expensive enough that solar wins anyway?" In Southern California Edison and San Diego Gas & Electric territory especially, the answer is usually yes — if the system is designed for today's rules, which almost always means pairing solar with a battery. This guide walks through the real 2026 numbers so you can decide with open eyes.

Is solar still worth it without the federal tax credit?

Yes for most Southern California homeowners, and a clear no for some — the credit's absence changes the margin, not the verdict. With no 30% federal credit on a 2026 purchase, what carries the math is the rate you stop paying, and a correctly sized solar-plus-battery system in SCE or SDG&E territory still projects to cost less over its life than staying with the utility. A small bill, a roof that needs replacement first, a high-fee loan, or a battery-less design can flip the answer to no, or not yet.

Here is the scenario-by-scenario version under NEM 3.0 and 2026 economics. One caveat before the table: the only 30% federal credit that still exists for residential solar belongs to third-party owners. On a lease, PPA, or prepaid agreement, the financier claims the commercial Section 48E credit and competitive providers pass part of that value through as lower pricing — a price benefit built into the payment, not a credit you claim on your taxes.

Two disciplines matter more now that no subsidy pads the math. Sizing: design to your actual usage and the roughly 4 p.m. to 9 p.m. evening peak, not the roof's maximum — an oversized array that penciled with a 30% credit no longer does. Financing: high dealer fees can quietly consume what the rate math earns, so compare cash, loan, and third-party structures on an itemized quote before you sign — our overview of solar financing options shows how the structures differ. The sections below walk through each piece of that math — rates, NEM 3.0 design, payback, and the third-party route — number by number.

What changed: the federal tax credit is gone for purchased systems

The Section 25D credit let homeowners deduct 30% of a purchased solar or battery system's cost from their federal taxes. OBBBA ended it with no phase-down. Per the IRS FAQ on the OBBBA changes, an expenditure is treated as made when the original installation is completed — so even a system paid for in 2025 does not qualify if installation finished in 2026. There is no safe harbor for signed contracts.

Two exceptions matter. First, if your system was completed in 2025, you can still claim the credit on your 2025 return, and unused credit amounts carry forward to future tax years. Second, the commercial clean-electricity credit (Section 48E) survived for third-party owners — which is why lease and PPA offers still exist at competitive rates in 2026 (more on that below). For the full rules, see our guide to what remains of the solar tax credit in 2026.

What didn't change: California's highest-in-the-nation-tier electric rates

The case for solar in California was never really the tax credit — it was the utility bill. The California Public Utilities Commission's independent Public Advocates Office reports that as of March 2026, residential average rates are 33.7¢/kWh at PG&E, 34.5¢/kWh at SCE, and 45.7¢/kWh at SDG&E.

The trend is the bigger story. Per the same report, residential rates at California's three big investor-owned utilities have risen 93% to 117% since 2014, while general inflation (CPI) rose 39% over the same period. Rate pressure is also showing up in household finances: about 2.17 million customers — nearly 1 in 5 households across the three utilities — were behind on their energy bills as of early 2026, owing an average of $738. Every solar decision in 2026 is a bet on where those rates go next, and the last decade points one direction.

NEM 3.0 changed the design, and the battery decides the outcome

Since April 15, 2023, new California solar customers are billed under the Net Billing Tariff (commonly called NEM 3.0). Under it, exports to the grid are credited at the grid's avoided cost — typically a small fraction of the 33.7–45.7¢ retail rates you pay — instead of the near-retail credits earlier NEM customers received. Solar that dumps cheap midday power into the grid and buys expensive evening power back no longer pencils the way it used to.

The design answer is storage: charge a battery with midday solar, run the house on it during expensive evening hours, and export little. This is not theoretical for us: since NEM 3.0 took effect, roughly 9 in 10 of our completed solar installs have included battery storage — 93.6% in 2025 (OC Solar project data, as-of 2026-08-11). Homeowners have already voted on what works under the new tariff; you can see the pattern in our study of completed Southern California installations, and get the mechanics in our plain-English NEM 3.0 explainer.

Time-of-use rate plans sharpen the effect. SCE and SDG&E residential plans price evening hours — roughly 4 p.m. to 9 p.m., exactly when solar production falls off and household usage peaks — at their highest levels. A battery is what lets you buy none of those peak-priced kilowatt-hours. That is also why battery-only retrofits have become common for older solar homes: the storage does much of the economic work under 2026 rules. Tesla Powerwall accounts for 95.4% of the batteries we install (OC Solar project data, as-of 2026-08-11), and our battery storage page covers the platforms we design with. If you are weighing the add, start with our guide on whether you need a battery with solar in California.

The 2026 payback math, honestly

Without the 30% credit, a purchased system's net cost is simply its price — so paybacks are longer than the figures in pre-2026 articles. As a working range, our 2026 modeling for a typical 8 kW solar-plus-battery system projects simple paybacks of roughly 8 to 12 years for cash purchases in SCE territory, and faster in SDG&E territory, where 45.7¢/kWh retail rates make every self-consumed kilowatt-hour worth more. We model 8 kW because that is what Southern California homes actually buy: our median installed system is 7.8 kW across all completed projects, running 8.1 kW so far in 2026 (OC Solar project data, as-of 2026-08-11). Solar-only systems under NEM 3.0 generally project longer paybacks and are harder to recommend. These are projections based on current rates and typical usage, not guarantees — your roof, usage pattern, and rate plan drive the real number, and future utility rate changes cut both ways. For the worked, scenario-by-scenario savings tables behind conclusions like these, see our NEM 3.0 battery math with real SoCal numbers.

Against a 25-plus-year equipment life, an 8-to-12-year payback still leaves well over a decade of low-cost power — and the alternative is not "$0." The alternative is paying the utility at rates that have roughly doubled in a decade. What the credit's loss really changed is the margin for error: oversized systems, financed deals with high dealer fees, and battery-less designs that penciled with a 30% subsidy no longer do. Sizing and design quality now matter more than they ever have. To pressure-test your own bill, run your numbers through our solar savings calculator; for deeper cost detail, see what solar panels cost in California in 2026 and our payback period guide.

Lease, PPA, and prepaid: where a 30% credit still exists

The federal government did not stop subsidizing residential solar in 2026 — it stopped subsidizing homeowner-owned residential solar. Third-party owners (the companies behind leases and power purchase agreements) can still claim the Section 48E clean electricity investment credit, generally worth 30% of the system investment when prevailing wage and apprenticeship requirements are met. OBBBA put solar 48E projects on a clock, but through 2026 the credit is very much alive for third-party-owned systems — the deadline mechanics and the honest limits of pass-through are covered in our guide to the solar tax credit in 2026.

Practically, that means a well-structured lease, PPA, or prepaid agreement can pass part of that 30% through as lower pricing, which is why third-party offers are often the sharpest deals of 2026. A prepaid agreement — one upfront payment, no escalator, no monthly bill — captures much of the economics of ownership while the provider monetizes the credit. Compare structures in our guide to PPA vs. prepaid vs. cash in California. On the state side, note that the SGIP battery rebate now survives only through limited income-qualified pathways — its general-market budgets largely closed at the end of 2025 — so confirm eligibility before any rebate enters your math; the full picture of what remains is in our California solar incentives guide.

Third-party agreements deserve the same scrutiny as purchases. Watch for annual payment escalators (a 2.9% escalator compounds meaningfully over 25 years), understand what happens when you sell the home (most agreements transfer to the buyer, but it adds a step to escrow), and confirm who is responsible for monitoring, maintenance, and roof work. The structure is sound — it is how most of the credit-backed value reaches homeowners in 2026 — but the contract terms determine whether that value actually lands with you or stays with the provider.

So, is it worth it? A decision framework

Solar is likely worth it for you in 2026 if most of these are true: your electric bill runs $250 or more per month; you are in SDG&E or SCE territory; you can include a battery; you plan to stay in the home 7+ years; and you either pay cash, use low-cost financing, or choose a competitive third-party agreement. It is likely not worth it — or worth waiting on — if your bill is small, your roof needs replacement you cannot yet fund, or the only financing available to you carries heavy dealer fees that consume the savings.

OC Solar is a Tesla Powerwall Premier Certified solar and battery installer headquartered at 240 Progress, Suite 100, Irvine, California, serving Orange County, Los Angeles, San Diego, Riverside, San Bernardino, and Ventura counties with 30+ megawatts installed. That base of local installs — completed projects in 232 California cities, and a median SCE permission-to-operate approval just 9 days after submission (OC Solar project data, as-of 2026-08-11) — is where our numbers come from, and it is why our answer to "is it worth it?" comes with math instead of a slogan. If you want the specific answer for your roof and your rate plan, a free design and savings estimate takes a few minutes to request at our estimate page.