Mark Jaffe

Mark Jaffe has been a reporter for The Philadelphia Inquirer, Bloomberg News and The Denver Post. He was also previously a Paris correspondent for Businessweek.

Workers with Bella Energy install solar panels on a rooftop in Boulder in July 2014. (Denver Post file)

Guest commentary: Xcel Energy wants to rewrite your electricity bill

May 28, 2016 at 5:00 p.m.

Xcel Energy wants to rewrite your electricity bill and change the way you pay for energy. The first step in that effort is now before the Colorado Public Utilities Commission,...

An oilfield worker starts his day's work before the sun rises over an oil rig near Kersey, in Weld County, in November 2014.

Jaffe: Is peace at hand over oil and gas drilling in Colorado?

April 17, 2016 at 10:31 p.m.

Jaffe: Is peace at hand over oil and gas drilling in Colorado?

Victor Carrasco hooks cows up for milking underneath the newly installed LED lights that are cutting a lot the energy use at Cleland Dairy in Erie.

Colorado dairies, farms trying to cut consumption of electricity benefit from energy subsidy

April 22, 2016 at 4:25 a.m.

Colorado dairies, farms trying to cut consumption of electricity benefit from energy subsidy

Battle of solar pits rooftop against utility-scale systems

April 23, 2016 at 4:24 a.m.

Battle of solar pits rooftop against utility-scale systems

Red Rock Biofuels to power FedEx jets under new contract

July 20, 2015 at 1:04 p.m.

Red Rock Biofuels to power FedEx jets under new contract

Winner Phillip Phillips performs onstage at the American Idol Finale on Wednesday, May 23, 2012 in Los Angeles. (John Shearer, Invision)

Jaffe: Turn Republican presidential debates into a reality/game show

April 22, 2016 at 10:39 a.m.

Jaffe: Turn Republican presidential debates into a reality/game show

Interior Secretary Sally Jewell to meet with Colorado officials

July 16, 2015 at 9:26 a.m.

Interior Secretary Sally Jewell to meet with Colorado officials

Department of the Interior Secretary Sally Jewell

Interior Secretary Sally Jewell to meet with Colorado officials

April 22, 2016 at 9:45 a.m.

Interior Secretary Sally Jewell to meet with Colorado officials

Rocky Mountain oil shipments by rail triple in five years

April 22, 2016 at 10:15 p.m.

Rocky Mountain oil shipments by rail triple in five years

Colorado renewable energy standard constitutional, judge rules

January 31, 2017 at 10:27 p.m.

Colorado renewable energy standard constitutional, judge rules

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Mark Jaffe

All Stories

Guest commentary: Xcel Energy wants to rewrite your electricity bill

Jaffe: Is peace at hand over oil and gas drilling in Colorado?

Colorado dairies, farms trying to cut consumption of electricity benefit from energy subsidy

Battle of solar pits rooftop against utility-scale systems

Red Rock Biofuels to power FedEx jets under new contract

Jaffe: Turn Republican presidential debates into a reality/game show

Interior Secretary Sally Jewell to meet with Colorado officials

Interior Secretary Sally Jewell to meet with Colorado officials

Rocky Mountain oil shipments by rail triple in five years

Colorado renewable energy standard constitutional, judge rules