Transmission Ten-Year Development Plan 2011-2020 - Eskom
Transmission Ten-Year Development Plan 2011-2020 - Eskom
Transmission Ten-Year Development Plan 2011-2020 - Eskom
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CLN<br />
Actual Peak Load<br />
2009 (MW)<br />
Forecasted Load (MW)<br />
<strong>2011</strong> 2016 <strong>2020</strong><br />
Ave. Annual %<br />
Load Increase<br />
Johannesburg 4202 4432 5720 6550 4.2<br />
West Rand 1980 2221 2287 2553 1.4<br />
Nigel 1668 1907 1979 2082 1<br />
Vaal Triangle 1262 1459 1560 1627 1.1<br />
Table 6.1: Central Grid CLN load forecast and percentage load increases<br />
The TDP schemes for the Central Grid consist<br />
of extending the 275kV network (built at 400kV<br />
insulation level to allow for future upgrade to 400kV)<br />
the installation of additional transformers at existing<br />
substations, as well as the construction of seven new<br />
<strong>Transmission</strong> Assets<br />
for Central Grid<br />
New Assets expected in<br />
<strong>2011</strong> - 2015<br />
New Assets expected<br />
in 2016 - <strong>2020</strong><br />
Total New<br />
Assets expected<br />
Total kms of line 623 329 952<br />
765kV Lines (km)<br />
400kV Lines (km)<br />
275kV Lines (km)<br />
Total installed<br />
Transformer MVA<br />
0<br />
597<br />
26<br />
0<br />
295<br />
34<br />
0<br />
892<br />
60<br />
3,095 6,340 9,435<br />
Transformers (no. of) 8 14 22<br />
Capacitors (no. of) 8 0 8<br />
Reactors (no. of) 0 0 0<br />
Table 6.2: New transmission assets for the Central Grid<br />
substations. The integration of Medupi and Kusile<br />
power stations will result in the Central Grid 400kV<br />
network being strengthened as well. The increase<br />
in transmission assets by end 2015 and end <strong>2020</strong><br />
and the cumulative total is shown in Table 6-2.<br />
© <strong>Eskom</strong> <strong>2011</strong> 15