Gas Generators 2010 4,027 h United States, Houston, Texas
Gas Generators 2006 7,566 h United States, Houston, Texas
Diesel Generators 2006 1,688 h United States, Waukesha, Wisconsin
Diesel Generators 2004 178 h United States, Waukesha, Wisconsin
Gas Generators 2012 13,478 h United States, Houston, Texas