With hot summers near Castaic Lake pushing air conditioners hard, electricity bills from Southern California Edison (SCE) can be a major household expense. For many, a monthly bill over $260 is common. Going solar in 2026 is a powerful way to fight back against high rates, but the strategy has shifted. The biggest savings now come from using your own solar power directly, making a home battery an essential part of the equation for most Castaic homeowners.
From rates to ROI—continue in the savings calculator.
Open calculatorBenchmark Cost Analysis
What Do Solar Panels Cost in Castaic in 2026?
The following costs are estimates for a typical installation in the Castaic area. It's important to remember these prices do not include any federal tax credits, as the primary residential credit concluded at the end of 2025.
- Solar-Only System (6.1 kW): The estimated upfront cost is approximately $15,555.
- Solar + Battery System (6.1 kW panels with 10 kWh battery): The combined system is estimated at $30,555.
While the battery adds to the initial investment, it unlocks nearly $1,000 in additional annual savings, making it a recommended choice for homeowners looking to maximize their solar ROI under current SCE rules.
Incentives & Tax Credits
Key California Solar Benefits in 2026
Even without a federal tax credit, California provides a supportive environment for homeowners going solar:
- Property Tax Exclusion: Your property taxes will not increase due to the added value of your solar panel system. This statewide exclusion is a significant financial benefit that protects you from higher tax assessments.
- Protection from Rate Hikes: An owned solar system provides a long-term hedge against rising utility costs. By producing your own power, you reduce your dependence on the grid and its fluctuating prices.
- Enhanced Home Appeal: In a competitive real estate market, an owned solar and battery system can be a compelling feature for future buyers, adding value beyond the monthly bill savings.
Net Metering: Southern California Edison Co
Net Billing (low export)
Recommended 🔋
How SCE's Net Billing Affects Your Solar Value
California's solar program, known as the Net Billing Tariff (NBT), has changed how you're compensated for excess energy. You no longer receive full retail credit for the power you send back to SCE. Instead, the export compensation is much lower—modeled here at around $0.11 per kWh, compared to the $0.32 you pay to buy it.
This difference makes exporting power financially unattractive. A battery solves this problem by creating a personal energy reserve. You store your extra solar power instead of selling it for a low price, then use it later to avoid buying expensive evening power from the grid. This simple shift dramatically increases your total bill savings.
Projected Savings
Projected Solar Savings in Castaic (2026)
Generating your own electricity is especially valuable when SCE's rates are around $0.323 per kWh. The key to maximizing your return is to use as much of your own solar power as possible, a strategy known as self-consumption. A battery makes this possible by storing solar energy from the day to power your home at night.
- A solar-only system (6.1 kW) is modeled to save a Castaic homeowner about $1,994 per year, with an estimated payback of 7.2 years.
- Adding a 10 kWh battery to that system boosts the estimated annual savings to $2,960. The payback period is slightly longer at 8.5 years, but the long-term financial benefit is significantly greater.
If grid electricity becomes more expensive over time, rooftop generation can offset costlier power in future years, making your investment even more effective.