Every minute of every day, grid operators monitor the ebb and flow of electricity from generators to substations to homes, businesses, schools, hospitals and more. They make sure that the supply of electricity matches the current demand and often must make snap decisions if there's a disruption, such as a storm or equipment failure.

Every minute of every day, grid operators monitor the ebb and flow of electricity from generators to substations to homes, businesses, schools, hospitals and more. They make sure that the supply of electricity matches the current demand and often must make snap decisions if there's a disruption, such as a storm or equipment failure.