An inventor in Chaska is testing a system that scoops air and feeds it to turbines at ground level.
Updated: December 01, 2012, - 05:13 PM
Two Minnesota oil refiners don't like the idea of a surcharge for oil shipments to pay for a pipeline to Superior, Wis., that they won't use.
Updated: November 28, 2012, - 11:27 PM
The manufacturer of solar panels on Minnesota's Iron Range missed payments on a government loan, but remains upbeat about 2013.
Updated: November 27, 2012, - 09:54 PM
Electric utilities across the state are offering mobile apps and online portals for energy conservation.
Updated: November 26, 2012, - 12:08 PM
Gevo Inc. wins round 2 in the patent battle over a yeast enzyme used to make isobutanol. But production difficulties persist.
Updated: November 19, 2012, - 10:28 PM
A $400 million upgrade at the Pine Bend Refinery in Rosemount will increase the amount of oil that can be refined there.
Updated: November 16, 2012, - 06:32 AM
Viking Gas Transmission Co. is under investigation amid accusations it overcharged.
Updated: November 15, 2012, - 10:05 PM
Northern Tier Energy also announced its first distribution to owners of partnership units.
Updated: November 13, 2012, - 07:51 PM
A scientific group concluded that older coal power generators in 31 states, including some in Minnesota, are past their prime.
Updated: November 12, 2012, - 11:59 PM