SEC´s installed Hydro Capacity is distributed amongst the four power stations as follows:
Although SEC further owns 2 x 4.5 mw diesel engines at Edwaleni Power Station, however due to their high operational costs, it is no longer financially/Economically viable to operate them.
The Maguga Hydropower Station is supplied by the Maguga dam, which is operated by the Komati Basin Water Authority (KOBWA). The dam is built on and supplied by the Komati River. Since the primary function of the Maguga /Driekoppies Dam System is to supply water for irrigation and other usages downstream of the Dams, the Maguga Hydropower Station operation is guided by "Hydropower Operating Guidelines" agreed upon, and signed by both SEC and KOBWA.
A Hydropower station utilises the potential energy of water stored in a dam higher than the power station by converting it into electric energy. The water flows through a high pressure conduit referred to as a penstock, into a water turbine, through a turbine runner, and discharged back into the river. As the water flows through the turbine runner, it spins the turbine shaft which drives the generator connected to it, thereby generating electricity which is then fed to the Transmission network.
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Tel: (00268) 2 409 4000
Fax: (00268) 2 404 2335