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EPA

Federal court overturns environmental agency’s rule on generator runtime

Tue, 05/12/2015 - 10:20 -- Anonymous
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Federal court overturns environmental agency’s rule on generator runtime.
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A federal court of appeals has overturned a US Environmental Protection Agency (EPA) rule allowing backup generators to run for 100 hours per year without being subject to air pollution controls.

Last week the U.S Court of Appeals for the District of Columbia Circuit ruled that the EPA has failed to justify the exemption for diesel-fueled backup generators.

In 2010 the EPA started to allow backup generators to run for up to 15 hours a year without being subject to emissions regulations. By January 2013 the agency updated those rules, allowing the backup generators to run for 100 hours.

The rule was challenged by the Delaware Department of Natural Resources backed by a number of environmental advocacy groups and power suppliers, arguing that the 100-hour rule could encourage large consumers to use more power from backup generators in non-emergency situations.

Cummins gensets receive EPA Tier 4 Final certification

Thu, 07/24/2014 - 15:59 -- Anonymous
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Cummins genset
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US Environmental Protection Agency (EPA) has given Cummins’s new line of diesel backup power gensets a Tier 4 Final certification.

EPA approved the complete line of high-horsepower gensets, ranging from 680kW to 2750kW. The generators are mainly used for backup power in critical power applications such as hospitals and data centres. The line is also designed for standby power applications where air quality is impaired and for emergency use.

Cummins said it is the first manufacturer receiving a Tier 4 Final certification. “We are proud to be the first company to be awarded Tier 4 Final certification for our generators,” said Dennis Heathfield, executive director at Cummins.

The Tier 4 Final generators achieve a 99% reduction in particulate matter emissions in comparison to Tier 2 products. “By achieving this emission reduction, we are providing customers with more fuel-efficient and cleaner generators,” added Heathfield.

EPA adopted Tier 4 emission standards in 2004 for new off-road diesel engines in order to reduce hydrocarbons, carbon monoxide, particulate matter and nitrogen oxide. Tier 4 Final standards require a reduction to near-zero levels.

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