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Koeberg Power Station

Full volume siren test - 7 March 2018

Please note, a full volume siren test of the Koeberg Public Warning System will be conducted in Atlantis, Duynefontein, Melkbosstrand, Van Riebeeckstrand, Philadelphia, Bloubergstrand, Bloubergrandt, West Beach, Sunningdale, Parklands, Robben Island and the farms surrounding Koeberg Nuclear Power Station between 10:00 and 12:00 on the morning of Wednesday, 7 March 2018.
Should you be staying in the above  mentioned areas, you do not need to take any action, as this is only a test. However, as a precaution, please ensure that your pets are indoors or are in an area where they cannot escape (due to the volume and the sound of the wailing test tone, dogs have been known to run away from their homes). Remember to switch off your radio and television in order to hear the Public Address announcements informing you about the test. Please do not panic as this is only a test.
If necessary, individual sirens may be re-tested on Thursday, 8 March, and Friday, 9 March 2018, for maintenance purposes. Note that the sirens form part of the Koeberg Emergency Plan and must be in working order. Contact Koeberg Stakeholder Management at tel. +27 21 550 5227 for information or to report a faulty/damaged siren.
NB* Should you be interested and willing to lend a hand by distributing pamphlets in your respective communities (especially the ones listed above), please contact Shaun Pienaar via email or at tel. 5263 before or by Monday, 5 March 2018. Please also find attached the electronic version of the Siren Test Notification pamphlet (in English, Afrikaans and IsiXhosa) for your distribution.


Video Clip: Making electricity from nuclear power

Koeberg's History
Construction of Koeberg began in 1976 and Unit 1 was synchronised to the grid on 4 April 1984, with Unit 2 following suit on 25 July 1985. It is situated at Duynefontein, 27km north of Cape Town on the Atlantic coast. Koeberg ensures a reliable supply of electricity to the Western Cape, one of the fastest growing regions in South Africa. It has operated safely and efficiently for over 28 years and has more years to go still.  
Koeberg, the only nuclear power station in Africa, has a pressurised water reactor (PWR) design. It boasts the largest turbine generators in the Southern Hemisphere and is the most southerly-situated nuclear power station in the world. Koeberg is surrounded by a 3 000 ha nature reserve owned by Eskom, containing more than 150 different species of birds and half a dozen small mammal species.
Low and intermediate level waste from Koeberg is transported by road in steel and concrete containers to a remote disposal site at Vaalputs, 600km away in the Kalahari Desert. The spent fuel, is stored on site in special pools quipped with high-density racking. 
Koeberg ranks amongst the safest of the world's top ranking PWR's of its vintage and is the most reliable Eskom power station. Koeberg has been awarded the NOSCAR status over 14 times by the National Occupational Safety Association (NOSA).
Technical details
  • Two 970MW units
  • Installed capacity: 1 940MW
  • Design efficiency at rated turbine MCR (%): 33.5%
  • Average availability over last 3 years: 79.7%
  • Average production over last 3 years: 12 715GWh 
Contact details
Switchboard Tel: +27 21 550 4911 
Visitors centre Tel: +27 21 550 4667
Where is Koeberg
R27 Off West Coast Road, Melkbostrand