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

The honest answer, up front

For most Southern California homeowners, solar is still worth it in 2026 — but not for the reason most of the internet gives you. 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?" The answer, in Southern California Edison and San Diego Gas & Electric territory especially, 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.

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. In our study of 1,299 completed 2025 installations across Southern California, 70% of projects included battery storage and the median system size was 8.0 kW — homeowners have already voted on what works under NEM 3.0. For the mechanics, see 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. 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. 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.

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. For deeper cost and payback 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 — broadly, placed in service by the end of 2027 unless construction began within a year of the law's enactment — but through 2026 and 2027 the credit is very much alive for third-party-owned systems.

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, and note that cash buyers can still stack state-side help like the SGIP battery rebate where eligible.

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 — including 1,299 completed projects in 2025 alone — 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.