It can be seen in Figure 12 that coefficients from the
similar system provide a good estimate (within 3 %) of
annual snow losses. The quality of this fit is also likely
improved by the close proximity of the two sites, and it
would be desirable in the future to integrate data from a
geographically disparate system of a similar configuration in
order to compare performance predictions.
Finally, in order to give context to a site, an evaluation
of historical data should be performed. Figure 13 shows the
predicted snow losses for sites SF1 and SF2 using historical
data from 1997-2009 for both sites. Historical solar irradiation
data was not available, and so all losses are referenced to
predicted 2011 yields.