Summer Has Long Stressed Electric Grids. Now Winter Does, Too.

Electric utilities, which designed their system to meet peak demand in sizzling weather, are straining to keep up during the cold.

Drought Saps the Panama Canal, Disrupting Global Trade

The number of ships that can travel through the vital route has fallen sharply this year because of a lack of water for the locks, raising costs and slowing deliveries.

A New Job for Electric Vehicles: Powering Homes During Blackouts

Some energy experts say battery-powered vehicles will increasingly help keep the lights on and support electric grids, rather than straining them.