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

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

Xcel Energy opens way for solar gardens

Xcel will offer an opportunity to invest in a community solar project, but two energy developers say the utility isn’t...

Updated: October 01, 2013, - 05:13 AM

Minnesota Energy Resources requests rate increase

A Minnesota natural gas utility that serves some Twin Cities suburbs, Duluth, Rochester and many small cities across the state...

Updated: September 30, 2013, - 08:27 PM

State regulators approve $430M upgrade to coal plant in Cohasset

The Boswell Unit 4 will get a retrofit to reduce mercury emissions. Customers of Duluth-based Minnesota Power face higher rates as a result.

Updated: September 25, 2013, - 08:26 PM

Sept. 12: CenterPoint's 4.9% rate hike OK’d, more coming

Minnesota utility regulators approved a 4.9 percent interim increase for delivering natural gas to customers of the state’s largest natural gas utility.

Updated: September 12, 2013, - 11:03 PM

N.D. blames Minnesota for holding back coal burners

The two states are battling over the constitutionality of a Minnesota law that bans power from new coal generators.

Updated: September 06, 2013, - 08:54 PM

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