Eskom’s first vanadium redox flow battery

Bushveld Energy has confirmed its first vanadium redox flow battery (VRFB) deployment in South Africa. The system will be deployed at Eskom’s Research, Testing and Development (RT&D) centre in Rosherville, Gauteng. This follows Eskom’s identification of the need for potentially up to 2000 MW of additional, daily balanced energy storage within the existing grid earlier this year. The project is co-developed by Bushveld Energy and the Industrial Development Corporation of South Africa (IDC) and will allow Eskom to test the VRFB, its performance and applications under numerous simulations. This will include minimum load shifting, wind generation smoothing, solar generation smoothing, power quality improvement and self-black-start capability. The VRFB commissioning is expected in the first half of 2018. Key evaluation criteria include non-degradation in performance, good round-trip energy efficiency and ability to perform multiple 100% discharge cycles. The testing process is planned to last for 18 months, after which the system will be redeployed to a commercial site within South Africa to provide maximum benefit taking into consideration the outcomes of the test work results.

Contact Mikhail Nikomarov, Bushveld Energy, Tel 011 268-6555,


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