Everything you read about solar financing before 2026 is now backwards. For ten years the standard advice in California was simple: buy your system, claim the 30% federal tax credit, and never sign a lease. Then Congress ended the residential credit on January 1, 2026, with no phase-down, while leaving the commercial version alive for lease and PPA providers. The result is a market where, for the first time since 2016, a well-structured lease or prepaid PPA can beat a loan on total cost. I will show you the actual numbers.
Quick answer: In August 2026, California homeowners have five ways to pay for solar: cash, a solar loan, a monthly lease or PPA, a prepaid lease or PPA, and home equity (HELOC). Cash still wins on 25-year cost, at roughly $2.40 to $3.25 per watt installed. But the 30% federal tax credit now only flows through third-party-owned systems (leases and PPAs) under Section 48E, so a homeowner who cannot pay cash is often better off comparing a prepaid PPA against a loan, not defaulting to the loan. With PG&E residential rates at 33.7 cents per kWh and SDG&E at 45.7 cents as of March 2026, doing nothing is the most expensive option on this page.
Key takeaways
- The Section 25D residential solar tax credit fell to 0% on January 1, 2026 under the One Big Beautiful Bill Act. Buying a system no longer earns you a federal credit.
- Leases and PPAs still capture a 30% credit through the commercial Section 48E program, and financiers that safe-harbored equipment before the July 4, 2026 begin-construction deadline can pass those savings through on systems installed into 2027.
- Solar loans advertise APRs as low as 1.99%, but dealer fees of 10% to 30% are baked into the price. Always compare the loan amount against the cash price, not the monthly payment.
- SGIP battery rebates for general-market customers closed December 31, 2025. Battery economics now run through rate arbitrage and TPO pricing, not rebates.
- California residential rates rose 69% to 101% across the big three utilities since 2016, per CPUC’s Public Advocates Office. That trend is the real return on any financing option.
What changed for solar financing in 2026?
The federal tax credit for homeowner-owned solar ended on January 1, 2026, and that single change reshuffled every option below. The One Big Beautiful Bill Act, signed July 4, 2025, terminated the Section 25D residential credit with no phase-down period (IRS: Residential Clean Energy Credit). A system you buy in cash or with a loan in 2026 gets zero federal credit.
The commercial credit under Section 48E survived with deadlines. Third-party owners, meaning the companies behind leases and PPAs, can still claim 30% on systems they own, provided the project either began construction before July 4, 2026 or is placed in service by December 31, 2027. The major California financing providers safe-harbored equipment ahead of that deadline, which is why lease and PPA pricing in late 2026 still reflects the credit while cash and loan pricing does not.
Across our California installs, this is the practical effect: the gap between owning and third-party ownership narrowed by roughly 30% of system cost overnight. The old rule of thumb is dead. You now have to run both numbers.
What are your solar financing options in California in 2026?
Five options, and the honest one-line version of each: cash wins on total cost, loans win on ownership without savings up front, prepaid PPAs win for buyers who want the tax credit baked in without a tax bill, monthly leases win on $0 down, and HELOCs quietly beat most solar loans on rate.
California solar financing options compared, August 2026 (7.2 kW example system)
| Option | Upfront | Who owns it | Gets the 30% credit? | Typical 25-yr cost | Best for |
|---|---|---|---|---|---|
| Cash | $20,500 | You | No (ended 1/1/2026) | ~$20,500 + inverter ~$2,000 | Lowest lifetime cost |
| Solar loan (20 yr) | $0 | You | No | $32,000 to $41,000 with dealer fee | Ownership, no cash out |
| Prepaid lease / PPA | ~$16,000 to $18,000 | Financier | Yes, priced in | ~$16,000 to $18,000 | Credit benefit without owning |
| Monthly lease / PPA | $0 | Financier | Yes, priced in | ~$24,000 to $30,000 with escalator | $0 down, predictable bill |
| HELOC | $0 (equity) | You | No | ~$27,000 to $30,000 at 7% to 9% | Owners with equity, no dealer fee |
Cash price based on NRG’s current California range of $2.40 to $3.25 per watt; see our current solar panel costs in California guide. Loan and TPO ranges reflect August 2026 California market pricing; exact figures depend on credit, roof, and utility.
How much does a solar loan really cost in 2026?
The advertised APR is not the price. Solar loans in California come in two flavors: a low advertised rate of 1.99% to 3.99% with a dealer fee of 10% to 30% hidden in the project price, or a no-fee loan at roughly 7% to 10% APR. The dealer fee is financed and accrues interest for the full term.
Here is the math on our 7.2 kW system with a $20,500 cash price:
- Low-APR loan: 3.99% for 20 years with a 25% dealer fee. The financed amount becomes $25,625. Payment: about $155 per month. Total paid: roughly $37,200.
- No-fee loan: 7.99% for 20 years on $20,500. Payment: about $171 per month. Total paid: roughly $41,100.
- The trap: the “cheap” 3.99% loan costs $4,000 less over 20 years but $5,100 more than cash, and you cannot see the fee unless you demand the cash price in writing.
The rule I give every customer: get the cash price on paper first, then judge any loan by the gap between the financed amount and that cash number. A lender that will not show you both numbers is telling you something.
Is a solar lease or PPA the smart move in California now?
For the first time in a decade, sometimes yes. Because the financier still claims the 30% federal credit under Section 48E and competition forces most of it into pricing, a 2026 lease or PPA is effectively the only way a California homeowner still benefits from the credit.
What to check before signing:
- The escalator. Monthly leases and PPAs typically start at 25 to 32 cents per kWh in California with an annual escalator of 0% to 2.9%. Take the 0% escalator even at a slightly higher starting rate. A 2.9% escalator compounds to a 33% higher rate by year 10.
- Prepaid beats monthly. A prepaid lease or PPA on our 7.2 kW example runs roughly $16,000 to $18,000, below the cash price, because the credit is priced in up front. We covered how these structures work in our prepaid solar PPA explainer and our review of Propel’s solar financing.
- The 2027 clock. TPO systems generally must be placed in service by December 31, 2027 to claim the credit unless the financier began construction before July 4, 2026. Financiers that safe-harbored equipment can carry pricing into 2027; ask your installer which fund your system sits in. Expect TPO pricing to rise meaningfully once safe-harbored inventory runs out. Industry analysis already projects 40% to 50% higher PPA pricing for non-qualifying projects.
- The honest downside. You do not own the system, the agreement runs 20 to 25 years, and selling the home means the buyer assumes the contract. Escrow delays from lease transfers are real. If you plan to sell within 5 years, buy or wait.
Does paying cash still make sense without the tax credit?
Yes, and the reason is on your utility bill, not in the tax code. As of March 1, 2026, average residential rates are 33.7 cents per kWh at PG&E, 34.5 cents at SCE, and 45.7 cents at SDG&E, per the CPUC Public Advocates Office Q1 2026 rates report. Those rates are up 69%, 101%, and 98% respectively since 2016, against 39% general inflation.
[CHART: line chart, “California residential electricity rates, 2016 to 2026”, x-axis: year, y-axis: average residential cents per kWh, series: PG&E (20.0 to 33.7), SCE (17.2 to 34.5), SDG&E (23.1 to 45.7), source: CPUC Public Advocates Office quarterly rates reports. Alt text: California residential electricity rate history 2016 to 2026 for PG&E, SCE and SDG&E.] Takeaway: every one of the big three utilities roughly doubled or nearly doubled rates in ten years, which is the return stream any solar financing option is buying into.
A cash purchase at $2.85 per watt on 7.2 kW costs $20,520 and eliminates most of a $255 per month PG&E bill. Even under NEM 3.0 export rates, cash payback in California typically lands between 7 and 10 years without the credit, and every year after that is 25-plus cents per avoided kWh, tax free.
A worked example: 7.2 kW home in Fresno on PG&E
One house, all five options, carried all the way through. The home: Fresno, PG&E E-TOU-C, 750 kWh per month, $255 average bill, 7.2 kW system producing about 11,900 kWh per year at Central Valley sun hours. Under NEM 3.0 the system offsets about 70% of the bill through self-consumption and compensated exports, cutting the bill to roughly $77 per month and saving about $2,140 in year one, growing as PG&E rates rise.
25-year cost of powering the same Fresno home, August 2026
| Path | Year-1 monthly outlay | 25-yr total cost of power | vs. doing nothing |
|---|---|---|---|
| No solar (PG&E at 4%/yr escalation) | $255 | ~$127,000 | baseline |
| Cash | $0 after purchase | ~$46,000 | saves ~$81,000 |
| Prepaid PPA | $0 after prepay | ~$41,000 to $44,000 | saves ~$83,000 to $86,000 |
| No-fee loan, 7.99%/20 yr | $171 + $77 bill | ~$64,000 | saves ~$63,000 |
| Monthly PPA, 28c + 2.9% esc. | ~$232 + $77 bill | ~$70,000 to $75,000 | saves ~$52,000 to $57,000 |
Assumes 0.5%/yr panel degradation, PG&E escalation at its 10-year historical average per CPUC data, remaining grid bill paid in all scenarios. Your roof, shading, and rate plan move these numbers; this is why we quote from your actual usage, not averages.
Notice what changed from every pre-2026 comparison you have read: the prepaid PPA is now competitive with cash, because it is the only line still carrying the federal credit.
What about batteries, SGIP, and financing storage?
Do not build your battery decision around SGIP anymore. The general-market SGIP rebate closed December 31, 2025, along with the equity and equity-resiliency budgets; the only remaining pathway is the income-qualified RSSE budget (household income at or below 80% of area median), currently waitlist-only (CPUC SGIP program page).
Batteries still pencil in California for one structural reason: NEM 3.0 pays roughly 5 to 8 cents per kWh for most exports while evening grid power costs 33 to 46 cents. Storing your own solar and discharging it from 4 p.m. to 9 p.m. captures that spread every single day. Batteries are financeable inside every option above, and TPO battery leases carry the same 48E credit advantage. Current hardware pricing is in our solar battery cost guide.
How do you choose? My honest decision list
- You have the cash and plan to stay 7+ years: buy. Lowest lifetime cost, and your payback is now driven by rates, not the tax code.
- You have home equity: price a HELOC at 7% to 9% before any solar loan. No dealer fee, and the rate is usually honest.
- You want the tax credit’s benefit but cannot use a loan well: get a prepaid lease or PPA quote and compare it to the cash price. In 2026 it will often be lower.
- You need $0 down and payment certainty: monthly PPA with a 0% escalator, from a financier with safe-harbored 48E funds. Sign before that inventory runs out.
- You are on SDG&E: at 45.7 cents per kWh, every option on this page beats the utility. Run the numbers this quarter, not next year.
- Someone at your door is quoting a monthly payment without a cash price: close the door. Our average electric bill in California guide shows what you should be comparing against.
FAQ
Can I still get the 30% solar tax credit in California in 2026? Not by buying a system. The Section 25D residential credit ended January 1, 2026 with no phase-down. The only way the 30% credit still touches a homeowner is through a lease or PPA, where the third-party owner claims it under Section 48E and reflects it in your pricing.
Are solar leases bad? Everyone told me never to lease. That advice was written when buyers got the tax credit and lessees did not. In 2026 the situation reversed. A lease or PPA with a 0% escalator, transparent pricing, and a solid transfer clause is now a legitimate first choice, though cash and HELOC purchases still win on 25-year cost.
What is a solar dealer fee and how do I avoid it? It is a financing markup of typically 10% to 30% added to your project price to buy down the advertised APR, and it is financed with interest for the full term. Avoid it by demanding the cash price in writing and comparing the loan’s financed amount against it, or by using a no-fee loan or HELOC.
Do solar loans require a lien on my house? Most solar loans are secured by the equipment via a UCC-1 filing, not a mortgage lien. HELOCs and PACE are secured by the home itself. PACE assessments in particular sit senior on your property taxes and have caused escrow problems; we rarely recommend PACE in 2026.
What happens to lease and PPA prices after 2027? Systems placed in service after December 31, 2027 generally lose 48E eligibility unless construction began before July 4, 2026. Industry analysis projects 40% to 50% higher PPA pricing for non-qualifying projects, so TPO pricing is likely at its low point right now while safe-harbored equipment lasts.
Is solar still worth it in California without the federal credit? Yes, because rates did the work the credit used to do. PG&E is up 69% and SCE up 101% since 2016. A cash system pays back in 7 to 10 years and produces for 25-plus. The credit’s expiration lengthened payback by roughly 2 years, and one more CPUC rate case can hand that back.
Not sure which of these five paths fits your roof and your utility? Get a quote in 2 minutes with your actual usage, or book a virtual consultation and we will run the cash, loan, and prepaid numbers side by side. No door knocking, no pressure. See our California service areas or explore solar installation with NRG.