Free Tools & Calculators

Plan your project before you spend a dollar. These free tools are built and maintained by our own licensed C-10 electricians — the same people who pull the permits and do the work.

Last updated: August 2026

Built and reviewed by Adam Aksoy, Licensed C-10 Electrical Contractor #1143455

Want us to run the numbers?

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

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Licensed C-10 Electrical Contractor · CA #1143455  |  1,000+ jobs since 2014  |  10-year workmanship warranty  |  Tesla Certified · Enphase Installer  |  Bonded & Insured

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
Open the Load Calculator

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
Estimate My Savings

These calculators are free planning aids and provide estimates only — final design, sizing, and code compliance are subject to field verification and AHJ approval.

Ready to move from planning to done?

Licensed, bonded & insured Bay Area electricians. Upfront pricing and same-day estimates available.

CA Lic #1143455  ·  Tesla Certified Installer  ·  Enphase · Bonded & Insured

✓ 10-year workmanship warranty  ·  ✓ Our own licensed C-10 crew — no subcontractors  ·  ✓ Upfront, no-pressure pricing

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