Is going solar in Gilroy still a smart financial move in 2026? With Pacific Gas & Electric (PG&E) rates hovering around $0.323 per kWh and the old 30% federal tax credit gone for new homeowner systems, the answer depends on how a system is designed. Today, the key to making solar work is focusing on self-consumption—using the power you generate directly—which is why pairing panels with a battery has become the standard approach for maximizing value.
From rates to ROI—continue in the savings calculator.
Open calculatorBenchmark Cost Analysis
Estimated Solar Panel Costs in Gilroy (2026)
These figures represent the modeled upfront cost for a 6.5 kW system, sized to cover the electricity needs of an average home in the Gilroy area. The numbers reflect installation in early 2026 without federal incentives.
- Solar-Only System (6.5 kW): The estimated gross cost is approximately $16,575. This system has a modeled payback period of about 7.7 years.
- Solar + Battery System (6.5 kW panels with 10 kWh storage): The estimated gross cost is $31,575. The payback period is slightly longer at 8.8 years, but the system delivers nearly $1,000 more in annual savings and provides backup power during outages.
Incentives & Tax Credits
Key California Solar Benefit: Property Tax Exclusion
Even without a federal tax credit, California offers a powerful incentive for homeowners. The state's Property Tax Exclusion for Active Solar Energy Systems ensures that your property taxes will not increase because of the value your solar panels add to your home. This is a significant, long-term financial benefit that remains in effect for new systems.
Furthermore, an owned solar system is an attractive feature in the competitive Santa Clara County real estate market. It can enhance resale appeal by offering future buyers the promise of lower, more predictable energy bills—a valuable asset for any home.
Net Metering: Pacific Gas & Electric Co
Net Billing (low export)
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How PG&E's Net Billing Affects Your Solar ROI
California's current solar program, known as Net Billing Tariff (NBT), changes the math for exported energy. Unlike older net metering programs, you don't receive a full retail credit for the surplus power your system sends to the grid. PG&E compensates you at a much lower avoided-cost rate.
For example, you might pay PG&E $0.323 per kWh for electricity, but they may only credit you around $0.113 per kWh for the solar energy you export. This price difference makes it far more profitable to store and use your own energy than to sell it. A battery makes this possible, effectively turning your roof into your primary power source, day and night.
Projected Savings
Projected Solar Savings for Gilroy Homeowners
The primary benefit of a solar system is offsetting your purchases of expensive grid electricity from PG&E. The more of your own solar you can use, the more you save. A system's value also tends to grow over time; if grid electricity becomes more expensive in the future, your rooftop generation becomes an even more powerful tool for bill control.
- A 6.5 kW solar-only system is estimated to save a typical Gilroy household around $1,970 per year on electricity bills.
- By adding a 10 kWh battery to that system, the estimated annual savings jump to $2,921.
The significant increase in savings with a battery comes from storing solar energy produced during sunny afternoons and using it during the evening. This strategy helps you avoid selling your extra power to PG&E for a low credit and then buying it back hours later at the full retail price.