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Cummins gains EPA Tier 4 Final certification for high-horsepower generator sets


April 25, 2014
By Alyssa Dalton


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April 25, 2014 – Cummins Power Generation says it is the first manufacturer to receive Tier 4 Final certification from the U.S. Environmental Protection Agency (EPA) for its complete line of high-horsepower generator sets, ranging from 680kW to 2750kW. The systems are available now, eight months ahead of the implementation date of January 1, 2015.

“We are proud to be the first company to be awarded Tier 4 Final certification for our generators,” said Dennis Heathfield, executive director, Power Systems, Cummins Power Generation. “This achievement definitively demonstrates Cummins’ leadership role in diesel emissions reduction technology. By achieving this emission reduction, we are providing customers with more fuel-efficient and cleaner generators.

“Our Tier 4 Final-certified systems are a win for our company, a win for our customers and a win for the environment,” he added.

The Tier 4 Final generator sets boast a 99% reduction in particulate matter (PM) emissions when compared to a Tier 2 product. A similar comparison can be made for nitrogen oxide (NOx)—the SCR aftertreatment system, together with the latest controls, achieves a NOx reduction of 94% or more, said the company.

The newly certified units will also qualify for standby power applications in locations where air quality is impaired or where stricter local air quality regulations require Tier 4 Final generator sets for emergency use. Tier 4 Final-certified generator sets are especially relevant for owners who use their on-site power for purposes other than standby emergency power, such as peak shaving, storm avoidance, rate curtailment and prime power.