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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12<br />
A significant amount of new transmission lines is being<br />
added to the system with over 6,000 km of 765kV<br />
and over 8 000 km of 400kV lines either approved or<br />
proposed over the 10-year TDP period. This is mainly<br />
due to the major network reinforcements required for<br />
the supply to the Cape (South and West Grids) and<br />
Kwa Zulu Natal (East Grid). The integration of new<br />
power stations in the developing Limpopo West Power<br />
Pool (Medupi and Coal 3 close to Matimba and the IPP<br />
Mmamabula in Botswana) also require significant lengths<br />
of transmission line as they are very remote from the<br />
main load centres. New HVDC lines are required to<br />
export the excess power from Coal 3 in the Waterberg<br />
directly to load centres in Gauteng and Kwa Zulu Natal<br />
(Central and East Grids) requiring 1 700km of 800kV<br />
constructed HVDC lines.<br />
The large amount of 400kV transmission line is also as<br />
a result of a more meshed transmission 400kV network<br />
<strong>Transmission</strong> <strong>Ten</strong>-<strong>Year</strong> <strong>Plan</strong> <strong>2011</strong>-<strong>2020</strong><br />
TDP New Assets Total<br />
HVDC Lines (km)<br />
765kV Lines (km)<br />
400kV Lines (km)<br />
275kV Lines (km)<br />
Transformers 250MVA+<br />
Transformers