Free Solar Calculators That Actually Work
Get instant, accurate answers on panel tilt angle, system sizing, voltage, wire gauge, and installation cost. No signup, no email — just numbers. Built for Canadian homeowners and DIY installers.
Most popular calculators
- RV & Trailer Solar CalculatorFree Canadian RV solar calculator: enter daily Wh, peak sun hours and battery type — get panel wattage, battery Ah, MPPT controller and inverter size for trailers, motorhomes and camper vans.
- Solar Net-Metering Credit Calculator (Canada)Calculate your annual solar export credit under Canadian net metering. Free 2026 calculator with Ontario IESO, BC Hydro, Alberta MMS, Hydro-Québec credits.
- How Many Solar Panels Do I Need?Free Canadian solar sizing calculator. Uses NRCan irradiance data, average household consumption (11,000 kWh/yr), and 400 W panel specs for accurate provincial estimates.
- Solar Net-Metering Savings Calculator (Canada)Calculate your annual electricity bill savings under Canadian net metering. Province-by-province rules, retail rate comparison, and Greener Homes Grant integration.
- Solar Panel Replacement Cost Calculator (Canada)Free Canadian solar panel replacement cost calculator. Compute labour, materials, recycling and call-out costs and compare against a full new CSA-compliant install.
- Solar Rebate Calculator (Federal + Provincial)Free solar rebate calculator for Canadian homeowners. Estimate the value of the Greener Homes Loan, provincial rebates (PEI Solar Electric, NS SolarHomes, AB residential), and net cost after every incentive.
- Off-Grid Solar System Calculator (Canada)Free Canadian off-grid solar calculator. Sizes PV array (kW), battery bank (kWh), and inverter (kW) from daily kWh load using NRCan irradiance data and CSA C22.1-aligned design.
- Solar Investment Tax Credit Calculator (Canada)Free Canadian commercial solar Investment Tax Credit calculator. Estimate your 30% federal Clean Technology ITC, Class 43.2 accelerated CCA, and net cost after every business incentive.
- Hybrid Solar System CalculatorSize a Canadian hybrid PV and battery system: array kW, usable battery kWh, hybrid inverter rating and net metering offset. CSA-aligned defaults.