Study Of Reduction Of GHG Emission From Ships By Shore Power

This paper introduced various methods which reduced the emissions of greenhouse gas(GHG),emphasized on the technical standards,present status and development of alternative maritime power(AMP) technology,and analyzed the existing problems of implementation of AMP,and feasibility and economic and enviromental effectiveness to ports and ships by implementation of AMP to reduce GHG emissions in China.The application of AMP onboard ship requires ship to install AMP equipment and system which involves high initial investment.When marine diesel generator use light diesel oil or fuel prices is high,the use of AMP onboard has some direct economic benefits to a single ship.Shore power was supplied to ships with smaller electricity load directly through the cable box connected with the low-voltage terminal socket.This kind of electrical connection means smaller costs to install AMP system,so the initial investment can be greatly reduced and the choice of shore power is obviously cost saving in the operation of ships.The implementation of AMP can reduce CO₂ emissions by about 66%compared to the use of marine diesel generator when ship is on ports, environmental benefits is considerable.Shore power plants will be more easy to implement wind power,solar power,hydroelectric power or nuclear power generation, the reduction of GHG emissions is more obviously.Eventually,we should learn from developed countries and absorb the successful experience.The implementation of AMP can not be separated from the national environmental legislation,financial subsidies,tax breaks,new ship construction,the establishment and promulgation of local technical standards and regulations.