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 />
Table 7. Average Hot water usage heated by electricity at an average low-costs household<br />
Hot <strong>Water</strong> Usage by<br />
Electricity <strong>Heating</strong>.<br />
Total Houses<br />
interviewed 582<br />
Litres heated<br />
at 96 o C<br />
Energy<br />
Used<br />
l kWh<br />
28<br />
T C Thot Tcold Efficiency<br />
of heating<br />
o K kWh/kg.K<br />
o C<br />
o C %<br />
17.49 1.81 80 0.001167 96 16 90<br />
From the results and deliberations in sections 6.2.1 and 6.2.2. above, is evident that the<br />
average daily usage of hot water heated by electricity up to the boiling point could be<br />
summarised as follows:<br />
Volume of hot water in litres……………………………………………………………..17.49 l<br />
Electrical energy usage to boil this volume of water……………………………1.81 kWh<br />
6.3 Installation of Dedicated M&V Equipment at Project Sites<br />
Examples of data loggers installations are shown in Figures 17 and 18.<br />
Figure 17: Installation of dedicated SWH Data Logger at a RDP House
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