Energy efficiency and Demand Side Management Program ... - Eskom
Energy efficiency and Demand Side Management Program ... - Eskom
Energy efficiency and Demand Side Management Program ... - Eskom
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9.2 Appendix 2: Examples<br />
effects to the area by replicating similar or<br />
different projects.<br />
Amount of expenditure on technology<br />
between the host <strong>and</strong> foreign investors<br />
regarding the contribution of domestically<br />
produced equipment, royalty payments <strong>and</strong><br />
license fees, imported technical assistance or<br />
the need for subsidies <strong>and</strong> external technical<br />
support.<br />
Table 7 Guideline on sustainability assessment<br />
These examples serve as a tutorial for energy managers, M&V program managers <strong>and</strong> proposal<br />
evaluators alike. It should be possible for all three groups to use the same tables, in order to clearly<br />
communicate the aspects to be measured, the indicators for each aspect as well as the specific<br />
parameters chosen. Below are some examples for each of the aspects.<br />
9.2.1 Engineering Aspects<br />
Table 8 is an example on the evaluation of the installation of variable speed drives (VSD) for a water<br />
pumping system. The program evaluation panel determines to evaluate payback time, energy<br />
converting ratio, maintenance plan, optimal pump on/off scheduling plan, <strong>and</strong> the overall energy<br />
consumption. These evaluation criteria <strong>and</strong> the corresponding weighting factors are given to the<br />
program manager for program development. Then the program manager follows strictly the<br />
evaluation criteria <strong>and</strong> develops the corresponding energy <strong>efficiency</strong> measures to meet these<br />
criteria. For instance, an optimal pump on/off scheduling plan with a short payback period is chosen<br />
together with the VSD installation so as to have a higher score in the evaluation.<br />
Engineering<br />
aspects<br />
Technology Equipment Operation Performance<br />
Installation of VSD Life <strong>Energy</strong> Maintenance Matching of <strong>Energy</strong><br />
cycle converting<br />
system consumption<br />
cost; ratio (from<br />
electrical to<br />
mechanical)<br />
components;<br />
Items to be Payback Pre: 60% Thorough Optimal Pre:<br />
considered while = 3 Post: 90% maintenance scheduling 90MWh/month<br />
scoring for the months<br />
plan<br />
provided to Post:<br />
installation of VSD<br />
match pump<br />
on/off with<br />
water<br />
dem<strong>and</strong><br />
60MWh/month<br />
Scores (out of 100) 80 70 65 85 75<br />
Weighting factors<br />
(in percentage)<br />
10% 10% 10% 20% 50%<br />
Subtotal score =80*10%+70*10%+65*10%+85*20%+75*50%<br />
Table 8 Example for program evaluation from engineering aspects<br />
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