SPM NEWS 2.16.21 - 3:04PM A second day of Arctic temperatures across Middle America have prompted rolling power outages Tuesday morning in Nebraska and a call for energy conservation in Iowa. Residents in Nebraska experiences some of the coldest weather they've seen early Tuesday, putting a strain on the power grid that saw the state's power utilities implementing rolling outages. Nebraska’s largest utilities — the Omaha and Nebraska Public Power Districts — said the planned power outages were over by midmorning and they were working to restore power to all customers. But more outages could be required later in the day. A spokesperson for MidAmerican Energy says the company is well-equipped to continue to deliver uninterrupted energy to electric customers during this cold snap. The rolling outage situation is affecting electric customers served by utilities connected to the Southern Power Pool system, which includes some areas in Iowa. MidAmerican Energy customer are connected to the Midcontinent Independent System Operator.