COLUMBUS, Ohio — As subzero wind-chill temperatures settle across Ohio and the Midwest, the regional power grid is bracing for an unprecedented stretch of winter electricity demand. PJM Interconnection,

This weekend's winter storm has caused widespread power outages in Nashville and other areas of the South — but as of Monday morning it hasn't severely strained the electricity grid. Why it matters: Electric utilities across the country have seen heavy demand during the storm,

Grid operators deployed emergency measures to keep lights on as extreme weather drives heating demand and strains natural gas delivery systems nationwide.

Linemen and out-of-town crews work almost around the clock to restore electricity after a winter storm slams the South. “Ice storms are a hurricane for us,” says co-op CEO.

Federal and state officials want regional grid operator PJM to extend price caps and secure new power sources, but their non-binding proposal leaves open the question of how to make data centers

Winter Storm Fern has caused hundreds of thousands of power outages, though the electric grid has remained stable in part due to coal power plants boosting supply.