South African grid operator plans to deploy a 199MW/832MWh battery energy storage system
According to foreign media reports, Eskom, a South African power grid operator, recently plans to develop and deploy multiple battery energy storage systems with a full scale of 199MW/832MWh. The company is also considering another energy storage project that could be twice as large.
The company recently announced that it plans to develop and deploy a battery energy storage system (BESS) with a full scale of 199MW/832MWh in eight locations in South Africa and has entered the final stage of negotiating the contract. Eskom said the battery storage systems would provide a four-hour-a-day peak shaving service, ancillary services, and local support.
South African grid operator Eskom aims to deploy energy storage on its grid at scale
According to industry media reports, the energy storage projects that Eskom plans to develop are backed by a $58 million loan from the African Development Bank's Clean Technology Fund. Eskom will own and operate the battery storage systems, while the storage system provider will provide fixed operations and maintenance (O&M) services for five years.
Adam Terry, technical director of Harmattan Renewables, a South African independent power producer (IPP) that is partnering with the company, said this round of deployments could be seen as a kind of pilot, with Harmattan Renewables and Eskom able to sell at a discounted price in Pilot deployment of battery energy storage systems on the grid.
Terry said a new round of energy storage project purchases would occur in the coming months. The project will also give independent power producers (IPPs) more control than a development bank-funded project in which Eskom sets norms.
He said, "We don't know the specifics about these, but we expect to see more than 500MW of battery storage systems deployed in the coming months. We hope to see more than 500MW of battery storage installed in the coming months. The planning and deployment of these energy storage systems will be led by independent power producers (IPPs), who look for sites to develop, determine the size, use technology, etc.
Eskom tenders new renewable energy projects through the REIPPPP scheme. Its goal is to add 30GW of clean energy to its grid by 2031, which would boost its share of renewable power generation to more than 40%.
In addition to installing independent energy storage projects, Eskom also deploys energy storage systems in conjunction with renewable energy power generation projects. It is estimated that about 1GW of energy storage systems can enter the grid.
The energy storage system will help alleviate the problem of intermittency in renewable power generation, and it will also help South Africa's grid operators delay investment in electricity infrastructure.
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