The most important components to look at before deciding if solar may make sense for a house are:
- Average monthly electricity bill: If the bill is over $120, solar will likely make financial sense.
- The roof: The roof should have enough space on East, South or West side. North-facing roofs are not ideal for solar since the power production is significantly lower but can still work in some cases. The roof age and material are also important. We do not recommend installing on roofs older than 12 years and suggest that you re-roof before the solar installation. Also, some roofing materials, such as Cal shake, wood shake and certain types of metal are not suitable for solar installation.
- Shade: There should be minimal shade on your roof since this will impact the solar production. Very large trees and tall roof obstacles such as big chimneys can cause unwanted shade on the panels.