M&V Solar Water Heating Guideline - Eskom
M&V Solar Water Heating Guideline - Eskom
M&V Solar Water Heating Guideline - Eskom
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Measurement and Verification Standard <strong>Guideline</strong> for Low Pressure <strong>Solar</strong> <strong>Water</strong> <strong>Heating</strong> Systems v1r1<br />
the installation angle symbolizes the harvesting potential of the solar collector at different<br />
angle of deviation from the North.<br />
Figure 2: Orientation of the house’s roof for potential SWH system installation in respect to<br />
the North direction<br />
Prior to the installation of the collector, a study should be performed on the particular<br />
household to determine the profile of the hot water usage. If the bulk of the hot water to be<br />
used is between 10 a.m. and 2 p.m. the orientation of the collector should be North-East<br />
(NE). If the hot water is to be used after 2 p.m. the collector should be orientated in North<br />
West (NW) direction allowing longer harvesting of the solar energy during the afternoon<br />
hours. The orientation of the collector(s) in the above conditions is shown in Figure 3 to<br />
Figure 5.<br />
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