The massive grid failure in India last week affected more than 600 million people. Amidst speculation on the reasons for the failure, we decided to talk to engineers working at the load dispatch centers on the ground to get a firsthand understanding of what really happened. Demand/Supply Mismatch: Even though demand/supply mismatch led to the grid failure, this is nothing new and didn’t just happen overnight. India has always struggled with power shortages. In this instance, the fragile safety mechanisms (relays) seemed to have failed under pressure from having to meet rising demand...