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POET receives Energy Star Award from EPA for emission reductions at Ashton, Iowa ethanol plant


Cogeneration reduces CO2 by 18,900 tons emissions per year
SIOUX FALLS, S.D. (June 2008) - An energy efficiency in POET’s ethanol production facility near Ashton, Iowa, that saves 18,900 tons of CO2 emissions per year earned an Energy Star Combined Heat & Power Award from the U.S. Environmental Protection Agency (EPA). The facility is equipped with combined heat and power (CHP) that generates up to 7.2 MW of electricity and requires 16 percent less fuel than a conventional process.

POET Biorefining - Ashton generates electricity onsite with a natural gas-fired turbine. Heat recovered from the turbine’s exhaust produces 56,000 pounds of steam per hour to support ethanol production. This CHP system, also known as cogeneration, requires approximately 16 percent less fuel than typical onsite thermal generation and purchased electricity. The EPA estimates that the CO2 savings from this system is equivalent to removing the annual emissions from 3,100 cars or planting 3,900 acres of forest.

“Ethanol is the only available opportunity to decrease greenhouse gas emissions from our existing fleet of vehicles,” said Jeff Broin, CEO of POET. “At POET, we are dedicated to making the process of producing ethanol even more efficient and environmentally friendly so it’s an honor to be recognized by the EPA for the environmental benefits of the efficiencies built into our Ashton plant.”

POET was one of two ethanol plants to receive the award at the Fuel Ethanol Workshop in Nashville, Tenn. “EPA is proud to recognize the outstanding pollution reduction and energy efficiency qualities of both ethanol facilities by presenting these ENERGY STAR Combined Heat and Power Awards. These facilities in Iowa and Kansas are making improvements that contribute to a cleaner, healthier environment,” said EPA Region 7 Administrator John B. Askew"

POET Biorefining - Ashton began production in April, 2004 near Ashton, Iowa. The ethanol production facility processes about 16 million bushels of corn into 56 million gallons of ethanol and 141,000 tons of Dakota Gold® Dried Distillers Grains each year.

This ENERGY STAR award recognizes projects that reduce emissions and use at least five percent less fuel than state-of-the-art comparable separate heat and power generation. To apply, projects must be in commercial operation, operating within the emission limits stipulated in their permits, and have a minimum of 12 months and 5,000 hours of measured operating data.


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