Off-Grid Solar System Sizing Calculator

Determine the perfect solar system size for your off-grid needs. Calculate the required panel area, system capacity, and number of panels based on your energy requirements.

Average daily electricity consumption
Average daily peak sunlight hours in your location
Typical system losses (20-30%)
Wattage of individual solar panels
Typical efficiency (15-22%)
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System Capacity

Total kW needed for your system
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Number of Panels

Panels required for your setup
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Estimated Area

Total space needed (sq. ft)

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❓ Frequently Asked Questions

How accurate is this calculator?

This calculator provides a good estimate for off-grid solar system sizing. For precise calculations, factors like seasonal variations, exact panel specifications, and battery storage should be considered by a professional.

What are peak sun hours?

Peak sun hours represent the equivalent number of hours per day when solar irradiance averages 1,000 watts per square meter. This varies by location and season.

Why account for system losses?

System losses (typically 20-30%) account for inefficiencies in wiring, inverters, battery charging, temperature effects, and other factors that reduce overall system performance.