Transmission Ten-Year Development Plan 2011-2020 - Eskom

3.2 GENERATION ASSUMPTIONS
The major change in the generation assumptions from
the previous TDP is the inclusion of Wind Generation.
The Coal 3 generation is still assumed to be in the
Waterberg area, close to Medupi and in line with the
current project development with the target date for
the first units in 2016. The integration of the first units at
Coal 3 will utilise the new Delta 765/400kV substation
and the Delta-Epsilon lines will be energised at 765kV.
4. Completed Projects Since Last TDP
This chapter contains a list of projects completed
since the last TDP. A project may consist of a number
of sub-projects, which may be placed into commercial
operation before the entire project is completed. This is
done to ensure that the network and customers enjoy
the benefits of the new assets as soon as practicable.
4.1 COMPLETED GENERATION INTEGRATION
PROJECTS
According to the Transmission Ten-Year Plan 2010-
2019, some RTS power stations were anticipated to
be completed in 2010. Parts of some of these projects
have since been completed, and the resultant benefits
are being realised. The completion status of the projects
is as follows:
Grootvlei RTS: generator bays 5 and 6 are still
outstanding and completion is anticipated in the
2011/12 financial year.
Komati RTS: generator bays 4, 5, 6, 7, 8 and 9 are
still outstanding, and completion is anticipated in the
2011/12 financial year. Unit 3 was commissioned.
4.2 UPDATE ON TRANSMISSION RELIABILITY
This section discusses all the projects that were
reflected in the Transmission Ten-Year Plan 2010 2019
It is proposed to implement two HVDC schemes with
a HVDC converter station in the vicinity of Coal 3 to
cater for the final configuration of six 750MW units.
Coal 4 is assumed to be out of this TDP period.
The HVDC lines will connect to HVDC rectifier terminal
stations in Gauteng and Kwa Zulu Natal (Central and
East Grids).
Nuclear 1 is considered, as in the previous TDP, to be
located at the Thuyspunt site.
for commissioning in FY2010/11. Over and above that,
there are other projects that were not mentioned
in that plan (due to the fact that they were near
completion) that have since been concluded.
Central Grid
The installation of the 3rd and 4th transformers at
Lepini substation is completed.
The transformers that were planned to be commissioned
in 2010 were at Croydon, Eiger and Esselen substations.
Esselen has been completed. Croydon and Eiger are
outstanding.
Western Grid
There were no projects planned to be commissioned
in 2010/11.
East Grid
The construction of the Majuba Umfolozi 400 kV (765
kV design) is completed.
The transformers that were planned to be commissioned
in 2010 were at Hector and Eros substations. Both
these projects have been completed.
North East Grid
The projects for the installation of additional
© Eskom 2011 9