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When you measure up the space you have available on your roof or elsewhere, you may find it difficult to capture the power required to run your RVâs house systems completely off of solar power. For a large motorhome, you might need 500 to 800 watts of power.
Many refrigerators in RVâs can run on DC propane and AC power. The solar will provide power to the batteries, which will allow you to run the fridge on DC power and propane. Solar will also charge the batteries so you can use your water pump.