Your personal electric bill contains all the information needed to go from having a general idea of what your savings should be, and instead into knowing very accurately what your specific savings will be!
Why it’s needed and what’s done with it.
1. It tells how much electricity you use in a year. Thus, the size of the system needed is determined.
2. It tells the cost of that electricity you use. Thus, the value of that electricity replaced with your own solar generated electricity is determined.
3. It tells the address. Thus, geographic location allows reference to very specific local weather data. This also allows mapping of the site and roof and yard from satellite images to assess and determine what size of system can be installed and its orientation towards the sun.Then the electricity generated by this size solar installation can be very accurately determined. Additionally, state and local incentives are determined from address. Thus, all local state and federal rebates will be known so that final price of installed system can be determined.