David Shaffer

Home
Bios

David Shaffer

Reporter | Energy and business

Phone: 612-673-7090

Email: david.shaffer@startribune.com

David Shaffer is a veteran reporter and editor for the Star Tribune, with more than three decades of experience on daily newspapers.
Follow @ShafferStrib

Cargill says it's a victim in fraud scheme

Minnetonka firm unwittingly purchased fake biodiesel credits.

Updated: September 24, 2012, - 09:09 PM

Digital River buys Canadian firm

Payment processing company being acquired for nearly $103 million.

Updated: September 24, 2012, - 06:31 PM

Ramsey-based In'Tech acquires VistaTek's 3D printing unit

The acquisition will move plant equipment and employees from Vadnais Heights to Ramsey, Minn.

Updated: September 24, 2012, - 10:46 AM

Ethanol takes a thrashing in Minnesota

High corn costs and low prices doubly crush state's producers.

Updated: September 21, 2012, - 09:35 PM

Plant positions Sage as global leader in 'smart glass'

A new $150 million factory in Faribault, Minn., aims to bring down the cost of its variable-tint glass and open up a worldwide market.

Updated: September 15, 2012, - 05:09 PM

Wind farm towers: They're taller, slower with more power

Wind farm towers rise higher above the landscape to capture more wind. Yet their blades turn more slowly.

Updated: September 10, 2012, - 09:09 PM

Minnesota solar panel maker struggles, skips loan payments

Silicon Energy opened a plant in Mountain Iron, Minn., last year, but has missed its first government loan payments amid slow sales.

Updated: September 04, 2012, - 09:44 PM

Prairie Island tribe seeks action on nuclear waste issue

The long debate over storing radioactive waste next to the Prairie Island nuclear power plant is boiling up again with an old question: Is the waste ever going away?

Updated: September 03, 2012, - 09:55 AM