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Kriel Power Station

Location: Between the towns of Kriel and Ogies in Mpumalanga


The planning and design of Kriel Power Station began in the early seventies. Construction also started in the early seventies and the station began operating at full capacity early 1979. When Kriel was completed in 1979, it was the largest coal-fired station in the Southern Hemisphere.
Kriel was instrumental in breaking ground for the large 3600 MW power stations such as Duvha, Matla, Kendal, Matimba and Lethabo. Kriel was one of the first stations to be supplied with coal from a fully mechanised coal mine, with the coal arriving at the boilers from the mine - untouched by hand.
Kriel is unique in that each turbine generator set is separate, whereas in Eskom's other stations, all the turbines are housed in a single turbine hall, all placed along the same axis. Kriel is a winning station in terms of its plant performance. It was awarded the Jan H Smith trophy for being the best power station Eskom in 1991 and 1995.
Kriel performed very well with all operational indicators being satisfactory and some outstanding technical achievements, particularly in the area of plant performance. We had set ourselves the goal of a unit capability factor of 90%; a planned outage rate of 7% and a forced outage rate of 3% and by the year 2000. This was already bettered in 1996, placing us in the best quartile of the UNIPEDE member countries.
Kriel continues to benchmark itself against other business units and utilities worldwide and for a long period it has been Eskom's goal to become the world's lowest-cost producer of electricity. Business efficiency has improved year by year and has allowed a steady reduction in the real price of electricity. In the light of the immense efforts it required, it is of great satisfaction to all at  Eskom that the latest international survey indicate that South Africans now enjoy one of the lowest electricity in the world.
Kriel Power Station, generating 3000 MW, was the forerunner of the new generation of giant coal-fired power stations developed to generate the increasing supply of electricity demanded by South Africa's constant growth. Kriel was actually the forerunner on all the major performance criteria's since 1991.
Technical details:
· Six Units: Each generate 500MW
· Installed capacity: 2850MW
· Ramp Rate per hour: 30MW
· Average availability over last 3 years: 76.8%
· Design efficiency at rated turbine MCR (%):34.99%
· Average production over last 3 years: 17 880 GWh
Contact details:
Tel: (017) 615-2000
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