Photovoltaic solar systems

What's it going to cost for you to go Solar:

1.  Find your daily utility usage by dividing the kilowatt-hours (kWh) used on an average month's utility bill by 30.  Determine your average the easiest way, by contacting your utility company and requesting your "Full Year Usage Report" add the usages from 12 months and then divide by 12.  When you view your report you may see that for 4 months in the winter your usage is 1800 per month and the 4 months in the summer your usage is 1800 per month and the 8 months of spring and fall your usage may be around 450 kWh's per month, this makes for a total of 18000 kWh's for the year divided by 365 days that equals 49.315 kWh per day.

2.  Divide that number by 5 (the average number of peak Sun hours in the U.S.) and multiply by 1.43 to account for system losses.  This is the size of the solar system, in kilowatts, that you will need for taking care of 100% of your electrical needs.  So now 49.315 kWh's divided by 5 equals 9.86 multiplied by 1.43 equals 14.10 kW PV System.

3.  Multiply that number by $10,000 ($10/watt installed) for a good ballpark idea of the gross installed cost.  Bare in mind that prices are driven by economic issues that are hard to control and regulate, so this is only an estimate and prices have to be verified pretty much every month, currently suppliers are sending out quarterly inventory lists and price sheets.

Send mail to webmaster@afles.biz with questions or comments about this web site.
Copyright © 2007 America's Full Line Electrical Service, LLC
Last modified: 22-Feb-2008