Solar Panels in California: Costs, Electricity Rates & Net Billing
California is one of the most important U.S. solar markets, but the economics are different from many other states. High electricity prices can make solar attractive, while the value of exported electricity and the design of your system can materially affect savings.
California solar at a glance
| Metric | Latest figure used |
|---|---|
| Residential electricity price | 34.74¢/kWh (June 2026) |
| 2024 residential average | 31.97¢/kWh |
| Current utility billing framework | Solar Billing Plan / Net Billing Tariff for new customers of participating investor-owned utilities |
| Main utilities discussed in the state guide | PG&E, SCE and SDG&E |
The June 2026 residential electricity price is a preliminary EIA figure. Your actual rate depends on your utility, rate plan, usage and location.
How much does solar cost in California?
There is no single California solar price. A quote depends on system size, equipment, roof complexity, electrical work, labor, permitting, financing and whether you add a battery.
As a national reference point, recent 2026 market data puts a typical U.S. home solar installation in the tens of thousands of dollars before incentives, with the exact figure varying substantially by system size and market. California homeowners should compare the price per watt and total cash price of several local proposals rather than relying on a single advertised average.
Use our Solar Cost Calculator →
Why California electricity prices matter
Electricity prices are a major input in solar payback. At 34.74¢/kWh, a household using 900 kWh per month would have an electricity-energy cost of roughly $313 per month if every kWh were priced at that average rate. Real bills include fixed charges, tier or time-of-use structures and other utility-specific details, so this is only a simple illustration.
High retail electricity prices can increase the value of reducing grid purchases. However, solar savings are not determined by the retail rate alone: system production, self-consumption, export compensation and future utility rates all matter.
California Solar Billing Plan (Net Billing)
For new customers covered by California’s Solar Billing Plan, excess solar sent to the grid receives financial credits rather than the old one-for-one retail-rate treatment associated with traditional net energy metering. The California Public Utilities Commission explains that the Solar Billing Plan is also known as the Net Billing Tariff or NEM 3.
This makes system design and energy timing especially important. Using more of your solar electricity in the home can be more valuable than producing large amounts of electricity that are exported at lower compensation. A battery can shift some daytime solar into evening hours.
Do you need a battery in California?
Not every homeowner needs storage. A battery becomes more interesting when your goal is to increase solar self-consumption, reduce reliance on grid electricity in the evening, or maintain backup power during outages.
When comparing batteries, look at usable energy capacity in kWh, continuous power in kW, warranty terms, usable backup loads and the expected operating strategy—not just the advertised battery size.
Read our Home Battery Sizing Guide →
California solar incentives and tax considerations
Incentives can change and eligibility depends on the project. Do not assume a federal tax credit applies to a 2026 purchase without checking the current rules. California’s tax treatment can also differ from federal treatment.
For example, the California Franchise Tax Board states that California does not conform to the federal Residential Clean Energy Credit. Always verify current federal and California rules with the IRS and California tax authorities before including an incentive in your financial model.
How to estimate your California solar payback
- Start with your actual annual electricity consumption.
- Estimate the solar system’s annual production using location-specific solar data.
- Estimate how much production you will use directly in the home versus export.
- Apply your utility’s current rate structure and export compensation.
- Subtract the net project cost you actually expect to pay.
- Model utility-rate changes and maintenance assumptions separately.
Learn how solar payback works →
What California homeowners should compare in solar quotes
- Total cash price and price per watt
- System size in kW
- Estimated annual production in kWh
- Panel and inverter equipment
- Battery capacity and power, if included
- Financing rate, term and total payments
- Assumptions about utility export compensation
- Warranties and installer coverage
- Any incentives included in the quote
Bottom line
California can be a compelling solar market because electricity prices are high, but the value of exported solar is an important part of the equation. A well-designed system should be evaluated around your actual usage, utility rate plan, solar production and self-consumption—not simply the number of panels on the roof.