Kohler Expands Gas Gen-Set Range Kohler Co. has announced a significant expansion of its EPA-certified gaseous-fueled generator set line. Targeting standby and prime power applications, the new gen-sets span an output range from 180 to 400 k W and, in combina- tion with the company’s previously launched units, allow the company to supply natural gas and propane- powered units from 20 to 400 k W. “While the current EPA emissions requirements have ultimately set the compliance burden upon the end user, Kohler Power Systems is com- mitted to providing an installation- ready product,” said Todd Matte, product manager, Industrial Gen- erators at Kohler Power Systems. “EPA-certified engines are voluntary under the gas engine regulations and some gen-set manufacturers don’t use certified engines. “But for those, when the gen-set gets to the site, the first year they have to have on-site EPA verification to show that the set meets the emis- sions levels. That can be a costly and time-consuming process and it’s omething our customers won’t need to deal with.” The new Kohler generators cover specific power nodes of 180, 200, 250, 300, 350 and 400 k W. The units are driven by NGE engines, a brand of Power Solutions Inc. (PSI), the Wood Dale, Ill., supplier of gaseous- fueled engine packages for mobile and stationary applications. The NGE engine products used on Kohler’s new gen-sets are based on Doosan diesel engine blocks, with NGE adding the gaseous fuel components, including electronic engine con- trollers, air-fuel ratio controlled closed-loop fuel systems, electronic governors and three-way catalysts. The entire 25 to 400 kW range is available in single-fuel specification (either natural gas or propane) or with a dual-fuel factory option that uses natural gas as the primary fuel source, with automatic switch-over capability to propane fuel for applications that require on-site fuel storage. Kohler also used PSI-supplied en- gines, based on GM long blocks, on its 20 to 150 kW gaseous-fueled gen-sets.
6 DIESEL PROGRESS NORTH AMERICAN EDI TION April 2010
Kohler has rounded out its lineup of EPA-certified gaseous-fueled generator sets with the launch of five new models covering a range of 180 to 400 k W. The new units broaden the company’s EPA-certified line, which now spans from 20 to 400 k W.
The units incorporate Kohler’s Decision Maker gen-set controllers, as well as automatic transfer switches and switchgear. “The Decision Maker controllers have been around a long time,” said Matte. “We have two models. The standard is the DEC 3 Plus, which is the entry-level controller that provides the ability to do all the annunciation required for NFPA 110. The DEC 550 is the Cadillac of our controllers. It has all of the capabilities anyone would need, it is able to work with switch- gear products and has more function- ality than the DEC 3 Plus. “The DEC 3 Plus is more analog and the DEC 550 is digital. It’s the buyer’s choice what they want to use — both are offered throughout the line. The customer can choose what- ever they need for their applications. And we’re a systems provider, so we can provide all of the systems and knowledge that’s required, plus we have a great distribution system that can help us in putting it all together and making sure it’s operating proper- ly for the customer.” The new gen-sets are also available with a choice of steel or aluminum enclosures that can be specified with weatherized and sound-attenuation capabilities. Additional accessories include block heaters, battery charg- ers, higher motor starting alternators and multiple circuit breakers. The new gaseous-fueled gen-sets target a range of commercial and in- dustrial standby applications such as healthcare facilities, municipal build- ings, schools, data centers, retail stores and larger residential homes. “The majority of the market in the U.S. is in standby because here the utility is so good,” Matte noted. “But we also have 50 Hz versions for other regions where the utility is not so reliable, and there they can be used for prime power.” The new gen-sets have gone into pro- duction at the company’s Wisconsin- based manufacturing site. dp