for Eskom's Key Customers in South Africa
for Eskom's Key Customers in South Africa
for Eskom's Key Customers in South Africa
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Appendices cont<strong>in</strong>ued...<br />
Scenario to demonstrate new NMD rules – applicable from 1 August 2009<br />
Customer on M<strong>in</strong>iflex tariff, tak<strong>in</strong>g supply at less than 500 V and transmission zone >300 km and ≤ 600 km with an NMD of<br />
200 kVA. The scenario looks at the customer’s demand pattern over a “historical” 24 month period to demonstrate the roll<strong>in</strong>g<br />
12 months period.<br />
Below are the results, i.e. the graph compar<strong>in</strong>g the NMD, the 5 % limit, the monthly MD and the AUC. The results sheet expla<strong>in</strong>s<br />
<strong>in</strong> detail how the customer is charged when the NMD, 5 % limit or previous AUC are exceeded at any given period.<br />
NMD comparison with MUC and 5 % limit<br />
280<br />
260<br />
240<br />
220<br />
200<br />
kVA 300<br />
180<br />
160<br />
140<br />
120<br />
100<br />
AUC reset to 220 kVA <strong>for</strong> 12 months<br />
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec<br />
‘07<br />
‘08<br />
Months<br />
MD (kVA) NMD (kVA) Exceedance limit (5 % of NMD)<br />
© Eskom July 2009 23
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