South Africa opens 3rd energy storage tender for procurement of 616 MW / 2464 MWh

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  • South Africa’s Department of Mineral Resources and Energy (DMRE) issued a Request for Proposals (RFP) for the third Bid Window under the Battery Energy Storage IPP Procurement Programme.
  • The BESIPPPP BW 3 RFP calls for proposals to be submitted for a total of 616 MW / 2464 MWh of Battery Energy Storage Projects allocated to five (5) pre-selected substation sites identified by Eskom.

The 5 sites are Harvard, Leander, Theseus, Everest, and Merapi substations and are all located in the Free State Province. The bid submission date is 31 July 2024.

Related news: The role of synchronous grid forming technology on stabilising South Africa’s power grid  

The new energy storage capacity will be procured based on the following criteria:

  • Battery Storage Technology for a minimum duration of 4 hours at the Contracted Capacity;
  • The project contracted generation capacity size range from a minimum of 123MW to a maximum 124MW for 4 hours;
  • IPP to declare availability and the SO will determine the Charging, Discharge or Steady State operating modes;
  • Min Round Trip Efficiency (RTE) of 70% to be tested yearly;
  • Measurement and management of the max number of cycles per contract year. Max 730 Equivalent number of cycles/annum;
  • Net Dependable Capacity (NDC) testing regime will be done on yearly basis and on request by system operator;
  • Minimum Availability of 95% over 8760 hours per contract year, to be confirmed. Requirement as it will be dealt with via the penalty regime for non-availability;
  • As part of evaluation, RTE, Rapid Voltage Change (RVC) impact and availability will be factored into evaluation price calculation; and
  • The Facility would be expected to provide Instantaneous Reserves, Regulating Reserves, Ten Reserves and Supplemental Reserves.

Further information on accessing the RFP for BESIPPPP BW 3 can be obtained on the IPP Projects Website here:

Good luck!

Author: Bryan Groenendaal


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