Des Moines Register: Utilities in Iowa and North Dakota say they’re owed $77 million for agreeing to provide energy during February’s deadly polar vortex that caused power blackouts across the southern and central United States. Basin Electric, a large North Dakota power provider, and the North Iowa Municipal Electric Cooperative Association, a group representing 13 municipal utilities in the state, filed a complaint with federal regulators earlier this month, seeking payment for efforts to provide energy during the massive wave of Arctic cold that hit the U.S. in February.