Utility-scale battery energy storage systems could be a game changer for clean energy, but more action is needed to lower barriers to entry.

Many countries have put carbon neutrality as a top agenda, targeting to peak CO2 emissions by the middle of this century. Some countries like the United Kingdom plan to ban the sale of gasoline and diesel vehicles by 2030, while others like the People's Republic of China are replacing coal with renewable energy.

To boost the output of energy from intermitent renewable energy sources requires battery storage to efficiently store the energy for electricity and other uses. Although storage capacity limits and high costs have been the main barriers to scaling up battery usage, recent technological advances and cost reductions in renewable energy and battery capacity offer promising new potential.

An important breakthrough has been the utility-scale battery energy storage system that can store large amounts of energy from a renewable energy generator.

A version of this article appears in the print on May 3, 2021, of The Himalayan Times.