BYD is already being known as China’s main producer of electric cars. They also produce their own ferrous batteries for the cars, which they now use to store wind and solar power in what represents the world’s largest renewable energy storage based on batteries.
Having the size of a football field, the huge battery bank can store 36 megawatt-hours of power. The State Grid Corporation of China is the project’s beneficiary, seeking to improve their renewable installation’s efficiency by 5 to 10 percent.