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Rad Solar RV & Marine

Solar sizing calculator

List what you run each day. We'll estimate your daily energy use, battery bank and solar panel size.

DeviceWattsHours/dayQtyWh/day

This is an estimate only, not a design. It assumes about 5 peak sun hours, lithium (LiFePO4) batteries used to about 80% depth of discharge, and about 25% for system losses and real-world conditions. Shade, season, panel angle, location and inverter use all change the real numbers. Book a consult to get a system sized for you.

Book a Consult to fine-tune this