Homebrewed Electricity > Frequently Asked Questions (FAQs)

weather data search

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machinemaker:
I was trying to find data for this area's sun to cloud ratio. We live in an area with a lot of cloudy days or partially cloudy times. I was trying to find information out on NOAA's site, but got a bit lost. I know that our local airport has daily weather and weekly forecasts, but is there an easier way to find a real history for considering solar panels? Thanks Kent

JimOK:
Try googling the NREL website for solar data.

SparWeb:
If you use PVWatts, it accounts for the average cloud cover, and how it varies at times during the year.

https://pvwatts.nrel.gov/

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