Repurposing EV Batteries for Storing Solar Energy

Abstract

In this article, we discuss the idea of repurposing EV batteries for storing solar energy to realize the constant availability of solar energy in power grid. Firstly, we discuss the scheme of reusing EV batteries for storing solar energy. Then, an overview of the global solar energy and EV sales situation. Based on such information, we furtherly operation a simple simulation on the potential of reused EV batteries for solar energy storage. We found great potentials in most of world leading countries. Over half of simulated countries and regions have enough potential reused EV battries for storing their own generated solar energy and power the grid before 2050, including European Union, China and USA. Finally, we discuss the future challenges and barriers of realizing the idea. The difficulties emerge from the perspective of comprehensive framework and standard for reused battery test, Safety insurance, Economic value compared with new battery production and Blanks of market regulations and legislation in most countries.