n Farmer’s Weekly - Energy efficiency : the easiest way to save : energy efficiency & optimisation

Volume 2016, Issue 16016
  • ISSN : 0041-848X



Recently, Eskom announced that it had succeeded in synchronising Unit 4 at Ingula - South Africa's brand-new pump storage scheme - to the national grid. This was accompanied by the usual fanfare. Ingula, however, is a net user of energy, and does not provide any baseload power. It takes advantage of the cheaper energy available at night to pump water from the lower dam to the higher dam. During peak times, this water is used to generate electricity, hence the moniker, 'pump storage scheme.' In my opinion, pump storage schemes are used for load shifting, and should not be seen as generation.

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