The amount of solar you need to power your home is not dependent on the size of your home. The amount of solar depends on the amount of power you use in your home.
Look at your monthly bill from the utility company. It will list the total amount of power (kWh) you used in the last billing cycle. Divide this by the number of days in your last billing cycle. This will tell you how much power you use each day (kWh).
We recommend that you also read another FAQ "My Electric Bill is too High, Will Solar Lower it?"
Online Solar, LLC and MrSolar.com are a family-owned and operated business based in Baltimore, MD, USA, that provides solar and wind energy products to customers across North America.