☀️ Solar & Energy calculators
Estimate generation, storage, runtime and energy economics.
Choose a calculator for the job in front of you. Each tool opens without an account and keeps your working data in your browser.
☀️ Solar ProductionEstimate daily and annual array generation.🔆 Array SizeEstimate array capacity for an energy target.🔋 Battery RuntimeEstimate backup runtime for a constant load.🔋 Battery SizingEstimate nominal storage for a backup target.📉 Simple PaybackEstimate simple solar-system payback.🏠 Self-Consumption ValueCompare using solar onsite versus exporting it.🚗 Solar EV ChargingEstimate solar hours required for an EV charge.🔌 Inverter CapacityEstimate inverter capacity from simultaneous loads.💡 Backup Load BudgetEstimate daily energy for critical loads.🌍 Emissions AvoidedEstimate grid emissions displaced by generation.