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Duvha Power Station


Construction of Duvha Power Station started in November 1975 and the last unit came into operation in 1984. At the time of its construction, Duvha was a giant of superlatives: it cost a staggering R1.6 billion to build, its chimneys were largest freestanding concrete structures and its mine the largest open-cast colliery in the Southern Hemisphere.  
In 1993 Duvha became the first power station in the world to be retrofitted with pulse jet fabric filter plants on three of its six units. These plants contribute largely to the reduction of air pollution by removing 99.99% of the fly ash which otherwise would be released into the air  through the station's chimneys.  
Technical details:
  • Six 600MW units Installed capacity: 3 600MW
  • 2001 capacity: 3 450MW
  • Design efficiency at rated turbine MCR (%): 37.6%
  • Ramp rate: 40% per hour
  • Average availability over last 3 years: 89.85%
  • Average production over last 3 years: 22 798GWh
Duvha's excellent safety record is proven by the fact that it has been awarded NOSCAR status twice already by the National Occupational Safety Association (NOSA). The last award was made in March 2001.
Contact details:
Tel: (013) 690-0111
Fax: (013) 690-0448
Where is Duvha:
Approximately 15km east of Witbank in Mpumalanga.