David Shaffer

Reporter | Energy and business
Phone: 612-673-7090
David Shaffer is a veteran reporter and editor for the Star Tribune, with more than three decades of experience on daily newspapers.

Recent content from David Shaffer

Scientists in Minneapolis test turbines that get power from water

Scientists at the St. Anthony Falls Laboratory are helping a New York company test its submerged turbines that generate power...

Updated: October 19, 2013, - 02:00 PM

Oct. 19: Xcel defends expensive nuclear upgrade

Improvements to its Monticello nuclear power plant cost more than double the original estimate.

Updated: October 19, 2013, - 11:11 AM

Nuclear upgrade cost still a value for customers, Xcel says

Xcel says that the $655 million upgrade to its Monticello nuclear power plant is still a good investment despite costing...

Updated: October 18, 2013, - 05:31 PM

Sept. 29: Easing corn prices give relief to ethanol industry

The bottom line improved for many ethanol producers in the last quarter, and industry experts say the outlook is good...

Updated: October 18, 2013, - 11:06 AM

Oct. 18: Xcel wins approval for 4 Midwest wind farms

Xcel is eager to complete the projects to meet deadlines to receive federal tax credits.

Updated: October 18, 2013, - 05:16 AM

Judge raises questions about Minnesota's anti-coal law

A federal judge is asking pointed questions about the legality of a Minnesota statute that has been challenged by...

Updated: October 17, 2013, - 09:19 PM

Prairie Island nuclear plant repair goes on despite NRC partial shutdown

The Red Wing plant’s $280 million steam generator replacement is continuing despite the partial shutdown of the NRC, which oversees...

Updated: October 15, 2013, - 09:09 PM

More Minnesota ethanol plants seeking profits beyond ethanol

Three producers see advantages in making another kind of alcohol that can be sold as a higher-value chemical as well...

Updated: October 14, 2013, - 01:20 PM

Solar power for the do-it-yourselfer

Mouli Engineering of Eagan says its SolarPod system is the world’s first modular, plug-and-play solar array.

Updated: October 05, 2013, - 02:00 PM

Second Minnesota ethanol maker may shift to isobutanol

Minnesota’s Highwater Ethanol will install corn-oil separation technology in what could be the first stage of a broader retrofit.

Updated: October 02, 2013, - 09:32 PM

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