Two thousand miles across nearly 40 states, from New Mexico to Maine, Winter Storm Fern delivered ice, snow, and bone-chilling cold. More than 200 million people were impacted. Nearly 1 million lost power. 

Grid operators, utility planners, and policy analysts will remember Fern for its stress-testing of the grid. The grid passed, but net-zero energy policy, with its heavy reliance on wind and solar, failed.