Residential Solar Rate Analyzer

Residential Solar Calculator

The Residential Electric Rate Analysis Tool utilizes Green Button interval data, the location of the home, and solar design factors (azimuth, tilt) specific to the home to show how the addition of a solar electric system will affect a residential utility customer’s bill. Once the analysis is complete, the residential utility customer will have a deeper understanding of how various solar systems sizes will affect their monthly and annual utility bill.

Step 1: Enter Details

Use the compass on the map above to determine your home's azimuth. For example below, the house on the left has an azimuth of 180, while the house on the right has an azimuth of 225.

azimuth 180
azimuth 225
 

The slope is a ratio based on the rise of the roof compared to the run. The rise is a vertical measurement and the run is a horizontal measurement of 12". Using the roof slop table below, we see that a roof with a 7:12 ratio has a slope of 30.26°. Measure your roof's tilt now and enter it into the field above.

azimuth 180
azimuth 180
 

residential solar rate analyzer

residential solar rate analyzer

Step 3: Enter Solar System Size (kW)

 

Enter the size of the solar system you plan to install. If you are unsure, enter 4. Toggle the up and down arrows to adjust the size and see the change reflected in the charts below.

 

 

Annual Energy Bill Before Solar (Tiered): $
Annual Energy Bill After Solar Installation (Tiered): $

 

 

 

 

 

 

 

residential solar rate analyzer