Off-Grid Solar Calculator
Off-grid solar array & battery storage calculator
Off-Grid Solar Calculator launched on August 21, 2026.
What it does
Sizing an off-grid solar power system shouldn't feel like a complex engineering project. The Off-Grid Solar Calculator simplifies the entire process by analyzing your daily appliance loads against location-specific peak sun hours and seasonal irradiance variance. Get instant, accurate calculations for your daily watt-hour usage, required battery storage, and solar panel array capacity.
Calculate your exact off-grid solar and battery requirements based on your specific appliances and location.
• Daily Load Calculation (Wh/day): Calculated by taking the sum total of appliance operating wattages multiplied by estimated daily usage hours. • Battery Bank Sizing (kWh): Modeled around an 80% Depth of Discharge (DoD) for high-efficiency Lithium Iron Phosphate (LiFePO4) batteries to maximize lifespan and autonomy. Total storage capacity factors in your specified days of battery autonomy. • Solar Panel Array Sizing (kW): Evaluated using localized peak sun-hour data (kWh/m²/day). A 15–20% system inefficiency derating factor is automatically applied to account for real-world inverter losses, dust/shading, and cable voltage drops. • Winter & Seasonal Adjustments: Peak sun hours are…from solarblueprintcalc.framer.website
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