The Midwest electric grid — which includes Wisconsin — should have enough resources to meet normal summer demands this year, but it could face shortages during peak demand levels from extreme heat events.

That's according to the North American Electric Reliability Corp., or NERC, a utility watchdog that releases a summer reliability report each year. Its 2023 report found that two-thirds of North America is at risk of energy shortfalls this summer during periods of high demand.

That includes the Midcontinent Independent System Operator, or MISO, which manages the grid across Wisconsin and 14 other states. NERC says North America’s elevated risk outlook is driven by a combination of coal plant retirements, a possible spike in energy use and reduced reliability due to extreme heat. "Increased, rapid deployment of wind, solar and batteries have made a positive  impact," said Mark Olson, NERC’s manager of Reliability Assessments, in a statement.