What size system do I need?

On average, it takes 20 to 25 solar panels to power a whole house. This means a 5 to 6 kilowatt (kW) system may be sufficient for your needs. However, this will vary depending on several factors:

  • How much electricity you use
  • The weather/climate of where you live and how much sun exposure you receive
  • Size of your roof

Talk with a licensed contractor to determine your exact needs.