New Delhi, April 21 -- India needs to rethink its power storage options in the light of an energy shock that has exposed the fragility of global supply chains. Since geopolitical conflict and wobbly rules of international engagement are unlikely to relieve us of trade clamps being used as weapons, we must adjust our cost and security calculus accordingly.

At particular risk are battery electric storage systems (BESS) that are now increasingly favoured by renewable energy (RE) producers for grid-scale storage. In his first term as US president, Donald Trump had begun barring China from access to what it deemed vital technology. It shattered the illusion of Big Tech's offerings being part of the global commons, as it were, open to all for ...