A 2.5 megawatt turbine in Rosemount will provide power for the grid and a full-scale testing ground for new technology. 3M is already planning to test a new innovation: a thin film that puts tiny ribs on the turbine blades. Researchers believe the ribs will reduce resistance and increase performance.
Jeff Johnson shocks Pawlenty with GOP win, Tim Walz gets DFL nod
Johnson's victory was the biggest shock of the night.