Komatsu America Corp. recently introduced the Hybrid PC200LC-8 excavator to the North American market. Powered by the Komatsu Hybrid System, the Hybrid PC200LC-8 uses a newly developed electric swing motor, power generator motor, capacitor and diesel engine. Komatsu developed its hybrid system to work on the principle of swing energy regeneration and energy storage using the Komatsu Ultra Capacitor system. The kinetic energy generated during the swing braking phase is converted to electricity that is used for upper structure rotation and to assist the engine. Compared with the standard PC200LC-8 hydraulic excavator, the hybrid model reduces fuel consumption by 25 to 40 percent.