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Re: [EnergyPlus_Support] Modifying a weather file to reflect "real" weather
"Actual" solar radiation data would mean they are recorded on site,
which is a rare occurrence. However, if you mentioned the location of
your project, it would be possible to determine the distance of the
closest measurement station.
If in the US and for data during 1998-2005, the NSRDB _modeled_ data
could be used.
For other situations, that kind of modeled data also exists, but you
might have to get it from private companies and pay for the service.
Chris
> I'm busy trying to understand weather files well enough to create one that runs well in E+ and contains the ACTUAL weather for a period of interest (the utility billing periods for the most recent ~12 months).
>
> Obtaining actual temperature and humidity data doesn't look too challenging, but solar data appears to be more complicated. Some of the weather data I have found includes an indicator for cloud cover, which seems to be the place to start, since the sun does the same thing every day above the clouds.
>
> Since the E+ weather documentation is hard to follow, I'm hoping that someone has recommendations for how to plug in cloud cover data so that E+ actually uses it properly. Guidance anyone?
>
> While I'm at it, are there other weather factors worth considering?
>
> Thanks!
>
>
--
Chris A. Gueymard, PhD
Solar Consulting Services
P.O. Box 392
Colebrook, NH 03576, USA
Tel. (603) 237-8550
Fax (603) 237-5314
http://www.SolarConsultingServices.com
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