CA Tools

California Solar and Energy Calculators

Solar and battery economics in California changed with net billing (NEM 3.0) and the end of the federal residential credit. These tools estimate what solar and storage are worth under the current rules and compare utility rate plans.

All 5 Solar & Energy tools

Homeowners weighing solar or a battery, and anyone comparing electric rate plans. Every tool shows how its result was worked out and links to the official source.

California Solar Savings CalculatorCheck every current California solar incentive with one form: federal tax credit status, NEM 3.0 export credit and the SGIP battery rebate.→ Federal Solar Tax Credit CheckerCheck whether you still qualify for the federal 30% residential solar tax credit. The credit ended for systems placed in service after Dec 31, 2025.→ NEM 3.0 Export Rate CalculatorEstimate what your solar exports earn under California's NEM 3.0 Net Billing Tariff, which pays a fraction of the old NEM 2.0 retail credit.→ SGIP Battery Rebate CalculatorEstimate your California SGIP home battery rebate and see which budgets are still open: general market, equity and Equity Resiliency.→ Electric Rate Plan ComparisonCompare every PG&E, SCE and SDG&E residential time-of-use plan for your usage, EV charging and baseline allowance, with 2026 tariff rates.→

Solar & Energy guides

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SGIP Battery Rebate Explained

What each SGIP budget pays per kWh, which are closed, who still qualifies for the $1,100/kWh equity rebate, and how the waitlist works.

· 5 min read

The 30% Federal Solar Tax Credit Is Gone for Homeowners: What OBBBA Changed

The federal residential solar tax credit ended for systems placed in service after 2025. See what changed and which credit still exists for leased systems.

· 4 min read

NEM 3.0 Explained: Why Your Solar Export Credit Dropped So Much

NEM 3.0 replaced near-retail export credits with an hourly Avoided Cost Calculator rate. See how the rate is set and why batteries now pay off.

· 5 min read

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