For vessels that already have waste heat recovery systems incorporated into them, Greens can offer complete design, service, repair, and upgrade solutions to all types of Heat Recovery Steam Generators (HRSG) and Waste Heat Recovery Units (WHRU). We also offer inventive solutions to capture the waste heat from auxiliary engines installed on ships by designing and manufacturing class approved Exhaust Gas Economisers (EGE) and Exhaust Gas Boilers (EGB)