Overview
Several PV array yield correlations are obtained and trends of PV array yield, water flow rate, hydraulic power, subsystem efficiency and system efficiency with insolation are determined.
Three-year
hourly field data for eight installed systems in Jordan have
been analyzed. Based on two seconds scanning rate, hourly, daily, monthly and
yearly averages of in-plane insolation and its frequency distribution for seven
locations are presented and discussed. In-plane insolation is compared with
insolation on a horizontal plane for a sample location. PV array efficiencies
for the eight systems are presented. Instantaneous, average and best results of
performance ratios are obtained. Actual oversizing factors of the systems have
been determined. The effect of insolation, time of day, ambient temperature, cell
temperature and wind speed on PV array yield are determined. Several PV array
yield correlations are obtained and trends of PV array yield, water flow rate,
hydraulic power, subsystem efficiency and system efficiency with insolation are
determined.
Samples of Results
Figure 1. Difference between
calculated cell temperature and measured cell temperature resulting from
applying the developed correlation
