Calculating Solar Power Potential with PV Watts

Reader Contribution by Staff
Published on September 15, 2009
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I like solar calculators, and this is an interesting one to explore.

The PV Watts1 calculator from the National Renewable Energy Laboratory (NREL) is a simple solar calculator that can help you figure out how much electricity you can generate with a PV system at many locations around the world. (Disclaimer here.)

When you use the calculator, it gives you a measurement of solar radiation in kilowatt-hours per square meter, which is also known as peak sun hours. (Here’s a very detailed explanation of that concept from the U.S. Department of Energy.)  

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