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First, you'll need to determine your loads. You can get a good idea by looking at your utility bill and finding the kWh per day or month. This will determine how much power you'll need to displace. How many solar panels you'll need depends a lot on where you live. You can use NREL's PV Watts calculator
http://rredc.nrel.gov/solar/codes_algs/PVWATTS/
to figure it out.

Additionally, you can look at other ways to save energy like replacing single-pane windows with double pane, using high-efficiency appliances and being smart about heating and cooling your home. (in the summer, we open most of our windows at night to cool off the house, then close them in the morning with curtains to keep the heat out)

If you're in a sunny climate and are willing to wait a year or two, you might also consider a concentrating solar energy system like the one here.
http://www.infiniacorp.com

2006-07-10 10:14:01 · answer #1 · answered by Anonymous · 0 0

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