Closed Cycle Vapor Turbo-generator (CCVT), which is based on the principle of a Rankine Cycle using an organic working fluid operating in a closed cycle between a vapor generator, turbo-alternator and condenser: CCVT is designed to meet the special requirements imposed by the marine environment and the typical requirement for operation in hazardous areas. The system is suitable for a complete unattended operation after initial manual start-up. The CCVT is designed to allow for minimal maintenance, typically a single preventive maintenance visit per year. The CCVT does not require any overhaul during its entire designed life. The CCVT is  weather proof and suitable for outdoor, salt laden, marine environment installation.