E x a m i n i n g C o s t – E f f e c t i v e n e s s o f P V / T M V H R S y s t e m s
617
period of nine months was 602.8kWh (Fig. 6). The use of electricity was higher in the
months from October to February which are cold months with limited sunshine hours.
Figure 6: Average electricity consumption of the existing house in Prestwick (Ewgeco 2012)
Although there were some distractions due to data uploading and maintenance, the solar
radiation data at the site in question had been collected between 17
th
April 2012 and 10
th
June 2012 (Fig.7). The average solar radiation recorded was measured at 160.2 W/m
2
.
Figure 7: Measured solar data from 17
th
April 2012 to 10
th
June 2012
