Facing high electricity bills from San Diego Gas & Electric is a common reality in San Juan Capistrano. As rates continue to climb, many homeowners are looking at solar for relief. But in 2026, the economics have shifted. With the end of the long-standing federal tax credit, the financial return now depends almost entirely on how effectively you can use the energy you produce, not just how much you generate.
The key is understanding California's current net billing rules, which change the value of sending excess power back to the grid. This makes pairing solar panels with a battery a practical strategy for maximizing your investment.
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Solar & Battery System Costs in San Juan Capistrano (2026)
For a typical home in the area, a 7.2 kW solar system is sized to offset a significant portion of a high electricity bill. Without the federal tax credit, the gross cost is the final cost.
- Solar-Only System (7.2 kW): The estimated cost is around $18,360.
- Solar + Battery System (7.2 kW panels, 10 kWh battery): The estimated combined cost is $33,360.
These figures reflect local pricing and equipment. Adding a battery increases the upfront investment, but it's designed to generate substantially more bill savings over the system's life under current SDG&E rules.
Incentives & Tax Credits
Key California Solar Incentive for 2026
While the 30% federal tax credit for homeowners is no longer available for systems installed in 2026, California still offers a crucial financial benefit:
Property Tax Exclusion for Active Solar Systems: Installing a solar system in California will not increase your property taxes. This state-level exclusion means you get the benefit of an improved home—which can support resale appeal—without the downside of a higher tax bill. This is a significant, long-term financial advantage for homeowners.
An owned solar system is a long-term asset. If grid electricity from SDG&E becomes more expensive over time, your rooftop generation can offset costlier power in future years, making the investment even more valuable.
Net Metering: San Diego Gas & Electric Co
Net Billing (low export)
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Understanding Export Rates with SDG&E
San Juan Capistrano is in San Diego Gas & Electric territory, which operates under California's Net Billing Tariff (NBT). This isn't the old 1-for-1 net metering. Here’s the simple version:
- Power You Use Directly: When your panels generate electricity and your home uses it instantly, you are avoiding buying that power from SDG&E at their high retail rate (around $0.32/kWh). This is where you get the most value.
- Power You Export: Any extra solar energy you send to the grid is credited at a much lower rate, modeled here at around $0.11/kWh.
This difference is why a battery is so strongly recommended. It lets you store your valuable solar energy instead of selling it to SDG&E for a low price, only to buy expensive power back from them just a few hours later.
Projected Savings
Modeled Annual Savings: Why a Battery Makes a Difference
Under SDG&E's net billing tariff, the electricity you export to the grid is worth much less than the electricity you buy. This makes self-consumption—using your own solar power directly—the most valuable part of going solar.
- With a solar-only system, you might see an estimated $2,216 in savings per year. Your payback period is modeled at around 7.6 years.
- Adding a battery system boosts those savings significantly. By storing excess solar energy from the day to use at night, your estimated annual savings jump to $3,308. The payback period is modeled at 8.3 years.
While the payback is slightly longer, the battery delivers over $1,000 in additional savings each year, giving you more control over your energy and reducing your reliance on SDG&E's expensive evening power.