The Ministry of Mineral Resources and Energy (DMRE) of South Africa has recently released a proposal (RFP) for six battery energy storage projects. Its scale is 513MW/2052MWH, and the bidding deadline is July this year.
The energy storage items deployed in each substation are the Aggneis project (77MW), Ferrum project (103MW), Garona (153MW), MOOKODI projects (77MW), and Nieuwehoop projects (103MW).
These projects will provide ESKOM's power grids with capacity, energy and auxiliary services, especially instantaneous reserves, regulating reserves, and supplementary reserve services.
The duration of these battery energy storage projects is 4 hours, which means that the total energy storage capacity is slightly higher than 2GWh, and it also requires the charge and discharge efficiency to reach more than 70%. Lithium -ion batteries are usually within 90%, so this requirement may provide bidding opportunities for other battery products (such as liquid flow batteries).
These battery energy storage projects will be required to perform up to 730 charging discharge per year, which means that an average of twice a day, the availability of the year is 95%.
South Africa is committed to achieving the net zero target of the power system by 2050, but it is more urgent that the large -scale and frequent power grid interrupt events need to be eliminated.
In August last year, the power grid operator completed the purchase of about 343MW/1440MWH battery energy storage system, and started some of these battery energy storage system deployments at the end of last year. This is consistent with the bidding of 146MWH released in December last year.
