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

Minnesota's struggling ethanol makers hope to snap back in 2013

After a drought, record-high corn prices and plant shutdowns, ethanol producers say 2013 has to be better.

Updated: May 19, 2013, - 10:23 PM

Is Xcel's top spot in wind power in jeopardy?

An Iowa utility owned by Warren Buffett-led Berkshire Hathaway plans to add 656 wind turbines by the end of 2015.

Updated: May 11, 2013, - 06:57 AM

Minnesota Senate passes 1 percent solar mandate

The bill is less ambitious than a House measure passed Tuesday. Now, a conference committee must look for a compromise.

Updated: May 10, 2013, - 08:52 PM

Xcel Energy gains from ultra-low corporate bond rates

The utility’s interest rate for three-year bonds: 0.75 percent.

Updated: May 10, 2013, - 05:52 AM

Battle over Minnesota solar mandate shifts to the Senate

The Minnesota House signed off on mandates for utilities. Now the battle shifts to a Senate vote on Friday.

Updated: May 08, 2013, - 08:56 PM

Restart of Koda Energy power plant uncertain

A still-smoldering fire at the Koda Energy biomass burner was under investigation Friday and should be out by Saturday.

Updated: May 03, 2013, - 09:03 PM

Xcel Energy has big jump in profits in first quarter

Rate increases and a colder winter helped boost earnings; CEO Ben Fowke is ‘cautiously optimistic’ on Minnesota rate increase.

Updated: May 02, 2013, - 08:01 PM

April 22: Buffalo Lake ethanol plant closes

Allegations of wrongdoing fly as the recently reopened Buffalo Lake plant files for Chapter 11 bankruptcy reorganization.

Updated: April 22, 2013, - 09:58 PM

Boulder, Colo., pushes to split with Xcel Energy

After years of study, Boulder is making final preparations to break away and launch its own greener municipal power utility.

Updated: April 17, 2013, - 09:22 PM

Flint Hills refinery signs expansion deal with environmental groups

The owner of the state’s largest oil refinery reached out to environmental groups and modified a planned upgrade to win...

Updated: April 17, 2013, - 12:18 AM

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