RV solar system basics
Solar power lets you camp off the grid longer. Four parts make up a system.
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- Solar panels capture sunlight. Choose high-efficiency models if roof space is tight.
- Charge controller regulates voltage from the panels so batteries don’t overcharge.
- Batteries store the power. Lithium is popular for efficiency and longevity.
- Inverter converts stored DC power to AC for standard appliances.
To size a system, divide your daily watt-hours by your hours of sun. Using 1,000Wh a day and 5 hours of sun gives about 200W of panels, before system losses. In practice, plan on 250 to 300W.



