Diesel Generators: From 7.5 to 17,550 kVA of power potential, Gmmco-Caterpiller diesel-fueled generator sets are built to world-class standards, for high efficiency, low fuel consumption and global emissions compliance. The Noise Enclosures are designed for easy access of all engine parts, and lube oil fumes disposal. The enclosures are made of Non-igniting, self-extinguishing mineral wool 100 mm thick with resin bonded, used for noise and thermal insulation.