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DTE Energy Converting 800 Vehicles to Biodiesel

May 19, 2008

DETROIT --- DTE Energy announced it is converting its fleet of 800 diesel-fueled trucks and service vehicles to cleaner-burning biodiesel fuel.

DTE Energy's operating units include Detroit Edison, an electric utility serving 2.2 million customers in southeastern Mich., and MichCon, a natural gas utility serving 1.3 million customers in Michigan.

"Converting to biodiesel is a win-win for DTE Energy and the environment," said Bill Pettit, director of fleet administration and operation for the company. "Biodiesel is simple to use, biodegradable and nontoxic. By using this recycled fuel, we'll be able to reduce emissions and help move DTE Energy toward a greener motor vehicle fleet."

DTE Energy began using biodiesel in its vehicles earlier this year, blending 5 percent of the renewable fuel with 95 percent conventional diesel. The company is gradually increasing the blend to 20 percent biodiesel -- the industry standard -- and expects to complete that conversion by mid-year.

According to the U.S. Department of Energy, a 20-percent blend of biodiesel fuel reduces carbon dioxide emissions by 15 percent compared to petroleum diesel fuel. Biodiesel also reduces particulate matter -- an emission linked to asthma and other diseases -- and carbon monoxide, when compared to conventional diesel fuel.

"DTE Energy has 800 diesel-fueled vehicles ranging from construction equipment and bucket trucks to light-duty vehicles," Pettit said. "Converting our fleet to biodiesel is the environmental equivalent of taking about 120 of those vehicles off the road and out of service."

Along with the environmental benefits associated with biodiesel, DTE Energy also expects to save almost $600,000 annually.

"Biodiesel is currently less expensive than petroleum diesel and requires virtually no modifications of existing vehicles, parts inventories and refueling facilities," Pettit said. "It's simply the best greenhouse gas mitigation strategy for today's medium- and heavy-duty vehicle fleets."

RKA Petroleum, based in Romulus, Mich., will be supplying the biodiesel fuel to DTE Energy.

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