U.S. Solar Calculator  
    Solar Inputs:    
    Zip Code  
    Home Electric Power per Year (kWh)  
    Miles Driven per Year (miles)  
    Cost of Solar per DC Watt ($)   
       
    Total Electric Power per Year for Home and Electric Car (kWh)  
    Est. Size of Solar Power System
(DC Watts)
 
    Est. Cost of Solar Power System - after rebates ($)  
    Est. Cost of Solar per kWh, for 25 Year Period (cents)  
    Savings Inputs:  
    Cost of Electricity per kWh (cents)  
    Cost of Gasoline per Gallon ($)  
    Miles per Gallon for Old Gas Car (MPG)  
    Savings and Payback Period:    
    Annual Electricity Savings ($)  
    Annual Gasoline Savings ($)  
    Total Annual Savings ($)  
    Est. Solar Payback Period (years)  
    © 2014 Randy Jackson All Rights Reserved    
         
         
         
    Global Solar Calculator  
    Solar Inputs:    
    Latitude (89° North to -90° South)
Deg. South must be a negative number
 
    Longitude (-180° West to 179° East)
Deg. West must be a negative number
 
    Home Electric Power per Year (kWh)  
    Miles Driven per Year (miles)  
    Cost of Solar per DC Watt ($)   
       
    Total Electric Power per Year for Home and Electric Car (kWh)  
    Est. Size of Solar Power System (DC Watts)  
    Est. Cost of Solar Power System - 
after rebates ($)
 
    Est. Cost of Solar per kWh, for 25 Year Period (cents)  
    Savings Inputs:  
    Cost of Electricity per kWh (cents)  
    Cost of Gasoline per Gallon ($)  
    Miles per Gallon for Old Gas Car (MPG)  
    Savings and Payback Period:    
    Annual Electricity Savings ($)  
    Annual Gasoline Savings ($)  
    Total Annual Savings ($)  
    Est. Solar Payback Period (years)  
    © 2014 Randy Jackson All Rights Reserved