RE: Energy storage10 Feb 2019 15:07
The opportunity for stationary energy storage applications lies in both grid-connected and off-grid settings. For grids, energy storage’s proposition includes peak shaving, load shifting, transmission loss reductions, integration of renewable energy and frequency regulation. In non-grid settings, energy storage can be deployed in conjunction with local generation to separate from the grid, creating an islanded micro-grid with secure continuous energy supply.
The use of vanadium in energy storage, through VRFBs, has increased over the years and accounted for two per cent of vanadium consumption in 2017. Current forecasts estimate that VRFBs will account for 20 per cent of vanadium consumption by 2030, but with the significant upside of as much as 50,000 mtV demand by VRFBs if they capture 25 per cent of the energy storage market within the next 10 years.
In South Africa, demand for energy storage systems continues to rise, evidenced both by greater enquiries for provision of single-acid vanadium electrolyte or direct projects that require energy storage for at least four hours per day. The new government in South Africa and the renewal of investor confidence has brought encouraging signs that suggests a move towards increased regulatory clarity over the treatment of energy storage, the renewable energy programme and the direction of the country’s energy policy as published in the Department of Energy’s Integrated Resource Plan.