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

June 29: Higher blend of biodiesel -- 10% -- on its way

In a boost for the biofuels industry, Minnesota on Tuesday becomes the first state in the nation to mandate a 10 percent minimum blend of biodiesel in diesel fuel sold at the pump.

Updated: June 29, 2014, - 07:20 PM

EPA to reassess Sherco coal power plant's effect on two national parks

Xcel’s coal-fired generators at Becker may require expensive retrofits or early retirement.

Updated: June 25, 2014, - 08:59 PM

Commerce Department: Reject 60% of Xcel's electric rate hike

The state Commerce Department, which analyzes utility rates on behalf of consumers, wants regulators to throw out more than half of Xcel’s requested rate hike of $291 million over two years.

Updated: June 24, 2014, - 05:42 AM

June 6: Xcel plan raises rate for energy hogs

Advocates say the proposal, which must be OK’d by the Public Utilities Commission, will promote conservation.

Updated: June 23, 2014, - 10:05 AM

Minnesota could face bigger carbon-reduction hurdle

Regulators and utilities are still parsing a complex greenhouse gas rule proposed by federal regulators.

Updated: June 21, 2014, - 04:40 PM

N.D. oil production tops 1 million-barrels-a-day milestone

Oil production in North Dakota has boomed over the past six years, and finally passed the 1 million barrel per day mark in April.

Updated: June 17, 2014, - 11:08 PM

In Bemidji, a research site reveals secrets of an oil spill

The site of a pipeline rupture has become a research center unlike any other in the world.

Updated: June 15, 2014, - 07:12 PM

Some Silicon Energy panels made in Minnesota are cracking, discolored

Silicon Energy halted production as it analyzes why some panels have cracked or are discolored.

Updated: June 13, 2014, - 10:35 PM

Judge backs expansion of Alberta Clipper oil pipeline across Minn.

The upgrade would expand or add new pumping stations to increase the line’s capacity by 40% to 800,000 barrels per day. The pipeline runs 285 miles through northern Minnesota.

Updated: June 12, 2014, - 08:33 PM

For Minnesota's pristine wetlands, N.D. oil boom is new threat

A remote wetland near Itasca State Park, already undercut by three crude oil pipelines, is one of several fragile, isolated habitats along the proposed path of the 610-mile Sandpiper crude oil pipeline across northern Minnesota.

Updated: June 09, 2014, - 03:17 PM

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