The Cat? CG Series Gas Generator Sets are manufactured at the Mannheim plant in Germany. Prior to its full acquisition by Caterpillar, the plant was the production base for MWM gas and diesel generator sets. As a provider of efficient, clean energy and solutions, it carries over 140 years of engine manufacturing heritage. The Cat? CG Series features an efficient optimized Miller cycle valve timing system, robust island?mode operation capability, broad application adaptability, and high electrical efficiency.