Free Tools & Calculators

Want us to run the numbers?

We'll do the calc and pull the permit for you.

NEC Residential Load Calculator

Find out whether your electrical panel can handle an EV charger, heat pump, or home addition. Runs a real NEC Article 220 calculation (optional and standard methods) and gives you an AHJ-ready PDF you can hand to your city.

• Add EV chargers, ranges, heat pumps, water heaters & more
• Upload your panel list (CSV) or enter loads by hand
• Downloadable, branded load-calculation PDF for permitting

NEM 3.0 Savings Calculator

California's NEM 3.0 net-billing rules changed the math on solar. Estimate how much a solar-plus-battery system could save you under the new export rates — and see why pairing storage with panels matters now.

• Estimate solar & battery savings under NEM 3.0
• Understand net-billing export credits
• See the value of adding battery storage

Solar Cost Estimator

Six quick questions — bill, roof, EV and heat-pump plans, battery, panel — and you get a recommended system size, a 2026 price range at our published Bay Area rates, estimated savings under NEM 3.0, and payback. No sales call.

• Sized from your usage, including loads you plan to add
• Solar, battery, and panel-upgrade cost lines shown separately
• Email yourself the estimate and get a fixed-price quote

SGIP Battery Rebate Estimator

California’s Self-Generation Incentive Program pays part — sometimes nearly all — of a home battery for qualifying households. Answer a few eligibility questions and see which SGIP tier you fit and roughly what it’s worth on a Powerwall-class battery.

• Covers General Market, Equity, Equity Resiliency, and solar + storage equity budgets
• Checks fire-threat, PSPS, medical baseline, CARE/FERA, and income criteria
• We file the SGIP application for you