Solar Panels in California have long been a popular choice, as the state leads the U.S. in installed solar capacity. With its Mediterranean climate and over 260 sunny days per year in parts of the state, California provides nearly perfect conditions for solar. While electricity costs continue to rise — averaging $0.30 per kWh in 2025 — solar panels offer homeowners an effective way to lock in lower energy prices for decades.
Cost of solar panels in California
The average residential solar installation costs between $15,000 and $28,000 before incentives. Price per watt ranges from $2.6–3.2, slightly higher than the national average. A typical California home using 700–1,200 kWh monthly may need a 5–8 kW system, though large homes with EV chargers often install 10+ kW systems.
Incentives and rebates
California has a history of strong solar policies. In 2025, the key incentives include:
- Federal Solar Tax Credit (30%).
- Self-Generation Incentive Program (SGIP) for battery storage, offering significant rebates.
- Property tax exclusion: solar systems do not increase property tax assessments.
Hyperion (Runergy) 405W Solar Panel 108 Cells PERC Bifacial HY-DH108P8B-405 Clearance
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ZNShine Solar 435W Solar Panel 108 Cell TOPCon Bifacial All-Black ZXM7-UHLDD108-435 Clearance
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LONGi 360W Solar Panel 72 cell Mono PERC LR6-72PH-360M Wholesale 23 panels per pallet
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LONGi 375W Solar Panel 144 cell PERC Bifacial LR6-72HBD-375MC Wholesale 26 panels per pallet
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LONGi 370W Solar Panel 144 cell PERC Bifacial LR6-72HIBD-370M Wholesale 35 panels per pallet
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Boviet 440W Solar Panel 144 Cell PERC Bifacial BVM6612M-440S-H-HC-BF-DG Wholesale 30 panels per pallet
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LONGi 370W Solar Panel 72 cell Mono PERC LR6-72PH-370M Commercial 728 panels per container (Truckload)
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LONGi 370W Solar Panel 144 cell PERC Bifacial LR6-72HIBD-370M Commercial 630 panels per Container (Truckload)
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LONGi 375W Solar Panel 144 cell Mono PERC LR6-72HPH-375MC Commercial 660 panels per container (Truckload)
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LONGi 375W Solar Panel 144 cell PERC Bifacial LR6-72HBD-375MC Commercial 572 panels per container (Truckload)
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Regitec 415W Solar Panel 108 Cell RMH54/415B1 Commercial 936 panels per Container (Truckload)
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GSTAR 550W Solar Panel 144 Cell PERC Bifacial GSP7G72M(H)550WT Commercial 620 panels per Container (Truckload)
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Net metering (NEM 3.0)
The shift to NEM 3.0 in 2023 reduced export rates for excess power, making batteries more valuable. Homeowners now maximize ROI by pairing panels with storage, using daytime energy themselves and storing surplus for evening use.
Payback and ROI
Even with lower net metering credits, California’s high utility rates allow solar systems to pay off in 6–9 years. With storage, ROI extends slightly, but lifetime savings can exceed $60,000–$80,000.
FAQ
How much do Aptos solar panels cost in California? About $2.7–3.0 per watt.
Is solar still worth it under NEM 3.0? Yes — higher electricity prices make solar valuable even with reduced export rates.
Does California offer rebates? Yes, especially for batteries under SGIP.
How long do Aptos panels last? At least 25 years with manufacturer warranty.
Conclusion
California remains a leader in solar adoption. Despite policy changes, the combination of sunshine, high energy prices, and incentives make Aptos solar panels a sound investment for homeowners seeking long-term savings.