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Simple Solar Calculator

This calculator will give you an approximate system wattage for your solar panels.

1. How many (KwH) do you use per month? This can be found on your electric bill.  Use at least 1 year of information to determine your usage.

KwH/Month

2. What percentage of your power usage will be supplied by solar energy from this system? (enter number only)

%

 

3. Total Peak Sun Hours per day? Visit the PVWatts Viewer interactive solar map.  Enter your ZIP Code (or find your location to see if there is solar data for your place on the planet), click Send to PVWatts, at the bottom center left click Calculate and see your historic solar radiation data by the month with a yearly average.

Hours

Minimum System Size:

Watts

 

 

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