This is small when compared to South Africa's current power demand and supply schemes. According to a government statement, expected peak demand capacity in South Africa for 2008 (with a 8-10% reserve margin) is around 38 000MW.
The following list (from reuters) illustrates the amount of MW generated per power scheme:
CURRENT POWER STATIONS
Coal-fired Total net maximum capacity * Kendal 3,840 MW * Majuba 3,843 MW * Matimba 3,690 MW * Lethabo 3,558 MW * Tutuka 3,510 MW * Matla 3,450 MW * Duvha 3,450 MW * Kriel 2,850 MW * Arnot 2,020 MW * Hendrina 1,895 MW * Camden 930 (Mothballed, being recommissioned) * Grootvlei -- (Mothballed, being recommissioned) * Komati -- (Mothballed, being recommissioned)
Nuclear * Koeberg 1,800 MW
Gas/liqued fuel turbine 925 MW Hydroelectric 600 MW
Pumped storage schemes 1,400 MW