Guide

Solar for an off-grid cabin

Off-grid log cabin in the mountains with a ground-mounted solar array

Size an off-grid cabin for the worst month, not the average: use winter sun hours, add 2–3 days of battery, and keep a generator for long cloudy spells. LiFePO4 batteries tolerate daily cycling best.

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LiFePO4 battery banks 400 W solar panels Off-grid inverter chargers Inverter generators

Run the calculator · How the math works