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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.
If you're an average consumer of electricity (920kWh/month), a 5000W system is probably a great fit for you. A 5kW Solar Kit requires up to 400 square feet of space. 5kW or 5 kilowatts is 5,000 watts of DC direct current power. This could produce an estimated 350 to 850 kilowatt hours (kWh) of alternating current (AC) power per month, assuming at least 5 sun hours per day with the solar array facing South.