California solar in 2026: is it still worth it?

Run a California solar quote through 2026’s rules and one thing stands out: the answer to “is it worth it” now depends on which scenario you fall into, not just whether you buy panels. The federal residential credit expired December 31, 2025, adding roughly $7,000–$10,000 back onto your out-of-pocket cost. Separately, NEM 3.0 already cut what your exports are worth. Stack a system without a battery against one built for self-consumption and you’ll see payback windows that differ by years, both landing somewhere in a 6–10 year range. The rest of this article walks through those scenarios so you can see which one describes your roof.

The rule change behind everything: NEM 3.0

NEM 3.0 — officially the Net Billing Tariff — replaced NEM 2.0 in April 2023, and it’s the single most consequential shift in California solar policy in a decade. Under the old rules, power your panels sent to the grid was credited at close to the retail rate: roughly the same 35.25¢/kWh you’d pay to buy it back. Under the new rules, exports earn the avoided-cost rate, averaging roughly 5–9¢/kWh depending on the hour. Midday solar that hits the grid now earns about a fifth of what it did two years ago. Everything downstream of this — battery economics, system sizing, payback speed — traces back to that one number.

The other three fundamentals haven’t moved much. California’s residential rate sits at 35.25¢/kWh, roughly double the national average, so every kWh you consume directly is worth a lot in avoided cost. Sun is excellent: 5.5 peak sun hours per day statewide, more in the Inland Empire and Central Valley, slightly less along the coast. And incentives are thinner than they used to be — no state income-tax credit, $0 from the expired federal credit, a property-tax exclusion on the added home value (set to sunset for new systems January 1, 2027), and an SGIP battery rebate now mostly restricted to equity and high-fire-risk households after the standard budget closed at the end of 2025. Full detail at California solar incentives.

Scenario one: solar with no battery

Take a Sacramento home averaging $290/month in electric bills — roughly 9,800 kWh a year at 35.25¢. An installer sizes an 8 kW system.

Upfront cost: 8,000 W × $2.95/W = $23,600 (estimate — prices vary by roof type, panel brand, and installer, so get itemized quotes from at least three companies). Annual production: 8 kW × 5.5 hours × 365 days ≈ 16,060 kWh.

Without a battery, figure roughly 55% self-consumption under NEM 3.0 — the share of production the home uses directly during daylight hours:

• Self-consumed: 8,830 kWh × $0.3525 = **$3,110 in avoided costs** (estimate)
• Exported: 7,230 kWh × $0.07 avg = **$506 in export credits** (estimate)
• Total estimated annual value: ~$3,620
• Simple payback: $23,600 ÷ $3,620 ≈ 6.5 years

For comparison, had the 30% federal credit still applied, net cost would have been roughly $16,520 and payback about 4.6 years. Losing the credit alone adds roughly two years here. Combined with lower NEM 3.0 export rates, many California homeowners now face payback 3–5 years longer than the projections common just a few years ago.

Scenario two: solar plus a battery

Same roof, same 8 kW system, but now the household stores midday production instead of exporting most of it at 5–9¢/kWh and draws it down in the evening instead of buying grid power at 35.25¢.

A quality 10–13 kWh home battery adds roughly $10,000–$14,000 to system cost before incentives. SGIP used to offset a meaningful chunk of that, but the standard residential budget closed at the end of 2025 — only equity and high-fire-risk tiers remain, and they’re frequently waitlisted. Budget for the battery at full price and treat any SGIP award as a bonus rather than something to count on.

With self-consumption pushed to 75–85%, that same system could generate an estimated $4,500–$5,000 per year in savings, bringing combined solar-plus-storage payback to roughly 7–8 years. That’s not a faster dollar-payback than solar alone — the battery carries its own cost — but it buys backup power during outages and protection from evening peak rates, on top of capturing more value from every kWh the panels produce.

Scenario three: leasing instead of buying

If the $23,600-plus upfront cost is the barrier, a lease or PPA is worth pricing. You won’t own the system and won’t receive any direct tax credit, but the solar company can still claim the commercial §48E credit (active in 2026) and may pass some of that through as a lower monthly payment than your current utility bill. Read the rate-escalator clause before signing — that’s where the long-term cost of a lease usually hides.

Where each scenario points

If you own your home, plan to stay 10-plus years, carry bills of $200+/month, and have a clean south- or west-facing roof, scenario one or two applies directly to you, and the math favors buying. Add a battery or size the system tightly to your own consumption and you mitigate most of what NEM 3.0 took away. If you’re planning to sell within 3–5 years, a full payback is unlikely to complete before the sale — lease terms or disclosure to the buyer are the more realistic path. A heavily shaded or north-facing roof undercuts the economics regardless of which scenario you’re in. Renters should look at community solar subscriptions instead. And if cash is tight with no access to a solar loan, scenario three — the PPA — deserves a serious look before you rule solar out.

The 25-year picture doesn’t change as much as payback does

Even at a 6–10 year payback, the full system life still favors ownership. Panels carry 25-year performance warranties, and California electricity rates have climbed an average of 4–5% annually over the past decade with no sign of reversing — every increase raises the value of every kWh your panels produce going forward. Over 25 years, the scenario-one system above could generate an estimated $66,000–$93,000 in total value against its $23,600 cost, a rough estimate that depends on how rates move. Use the solar savings calculator to model your own home rather than this example.

Check current solar panel cost in California to benchmark any quote against real local pricing, and ask every installer to build your savings model on NEM 3.0 export rates, not leftover NEM 2.0 assumptions. If anyone quotes a 30% federal tax credit for a 2026 purchase, that’s a hard stop — the credit doesn’t exist for this tax year.