Bergstrom Inc. and Kohler Power Systems Announce Hybrid Power System

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The hybrid power system combines the Bergstrom NITE Plus System with a KOHLER DC power unit. The system provides fleets and owner operators who live on the road the best of both worlds - a combination of battery power and APU functionality.

This truly offers fleets and owner-operators who live on the road, the best of both worlds - a combination of battery power and APU functionality

Responding to the increasing demands for idle-reduction options, Bergstrom Inc. and Kohler® Power Systems have joined forces to offer the trucking market a true hybrid power system. This hybrid power system combines the Bergstrom NITE® Plus System ( with a KOHLER DC power unit (

"This truly offers fleets and owner-operators who live on the road, the best of both worlds - a combination of battery power and APU functionality," said Bill Gordon, Director of Global Marketing & National Director Aftermarket for Bergstrom. "Innovating alternative idle-reduction options for today's Class 8 trucks are critical as OTR drivers try to address tougher emission regulations and fluctuating fuel prices. We're confident this hybrid power system offers a solid solution."

How it works: The hybrid power system provides stable power to the truck, allowing the driver to efficiently run the HVAC system, without having to idle. When the power levels of the four deep-cycle AGM batteries decrease to low voltage levels, the low-battery indicator is triggered and the KOHLER DC power unit begins to recharge the batteries - all the while keeping the Bergstrom NITE Plus System operating uninterrupted. Should the truck's batteries also be depleted, the KOHLER DC power unit is able to recharge them, with the use of the specified bi-directional separator, and at no risk of overcharging either bank of batteries.

Fuel consumption: The reduced fuel consumption offered by this hybrid power system is impressive. When the system is in the air-conditioning mode, no fuel is used, as the truck operates solely on the Bergstrom NITE Plus system. In heating mode, 0.05 gallons per hour are consumed, while .10 gph is used when the hybrid power system is in recharge mode.

Quiet, minimal maintenance: Stacy Peshkopia, Marketing Manager for Kohler Power Systems, said the two companies kept the "ideal idle-reduction product" in mind, making sure the hybrid power system runs quietly and requires minimal maintenance. For the DC power unit, Kohler provides a custom sound-attenuated enclosure that keeps the frame-rail mounted power unit operating at 68 dBA in recharge mode. When the full system is in heating or air-conditioning mode, the sound level doesn't exceed 50 dBA. Because the Bergstrom NITE Plus system will be used primarily to provide climate control and power to the cab, the DC power unit will be used significantly less than a stand-alone APU, which means longer service and maintenance intervals for the power unit.

Emission compliant: The hybrid power system from Bergstrom and Kohler is certified to the EPA Tier 2 emissions regulations. The hybrid power system is also CARB compliant, except for the minimal time when the system is in recharge mode.

Availability, warranty: The hybrid power system will be available in summer 2009, from both Bergstrom and Kohler Power Systems distributors and dealers. The Bergstrom NITE Plus carries a two-year warranty, and the KOHLER DC power unit carries a two-year or 2,000 hour warranty.

About Bergstrom Inc.
Bergstrom ( is the leading designer and manufacturer of cab climate systems for heavy duty commercial trucks, off-highway machines and specialty vehicles. By combining progressive engineering talent, lean manufacturing principals and a global footprint, Bergstrom offers a unique blend of commercial vehicle marketplace focus and customer value. For more information, please visit

About Kohler
Kohler Power Systems ( a division of Kohler Co., and provides complete power systems, including generators (residential, industrial, mobile and marine), automatic transfer switches, switchgear, monitoring controls, and accessories for emergency, prime power and energy-management applications. Kohler Power Systems delivers energy solutions for markets worldwide. Founded in 1873 and headquartered in Kohler, Wis., Kohler Co. is one of America's oldest and largest privately held companies. Kohler is a global leader in the manufacture of kitchen and bath products, engines and power generation systems, cabinetry, tile and home interiors, and international host to award-winning hospitality and world-class golf destinations.


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Bill Gordon

Stephanie Dlugopolski
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