Originally Posted By: JohnE
Philip, who came up with only 5 hours of sunshine per day? That seems extremely low to me.


That's answered in the article:
"Since according to NOAA the sun averages 5.5 hours of 1000 W/m insolation at our proposed site above Vail ... " with more detail at
http://www.rbr.com/radio/ENGINEERING/95/13603.html