Tuesday saw the successful testing of China’s first megawatt iron-chromium flow battery energy storage demonstration project, which will be used for commercial purposes.
The project, which was finished in early January, is the biggest of its kind in the world and consists of four groups of storage tanks and 34 domestically produced “Ronghe 1” battery stacks.Using the chemical properties of iron and chromium ions in the electrolyte, it can store 6,000 kilowatt hours of electricity for six hours.
An iron-chromium flow battery is a new energy storage application technology, with high performance and low cost. It can be charged by renewable energy sources such as wind and solar power, and discharged during peak hours.
In addition, it can help shave peak and modulate frequency for the power system, thus enhancing its flexibility.
