The application of clean energy for power generation and transmission to subsea loads for subsea processing, compression and boosting processes have been identified to reduce the emission of CO2, CO and other hazardous gases to the environment. Subsea all-electric systems have also been identified as a better option due to size reduction, lower weight, its low power requirement and consumption. This review paper focused on Power Generation models with emphasis on generating the power onshore as one option and with the use of clean energy options like wind, solar etc. this power generation models will help to reduce the size and weight of offshore oil and gas production Platforms. The power transmission to the subsea sea loads was considered using high voltage transmission cables and an economic model to guide future investment in subsea project development was considered