Assessment of CO2 and priority pollutant reduction by installation of shoreside power

作者：Hall William J^*

来源：Resources, Conservation and Recycling, 2010, 54(7): 462-467.

DOI：10.1016/j.resconrec.2009.10.002

• Marine
• Shipping
• Port
• Shoreside power
• Cold-ironing
• Carbon dioxide

Maritime shipping is becoming increasingly recognised as an important source of both priority pollutants such as NOx, SO2, CO, and particulate matter (PM) and the main greenhouse gas, CO2. The atmospheric emissions from ships are of particular concern when vessels are at berth, because they consume significant quantities of electrical power which is generated by inefficient onboard diesel engines leading to unnecessary emissions of priority pollutants and greenhouse gasses. One alternative to using onboard power generation is to connect ships to an onshore electrical supply: this is referred to as shoreside power or cold-ironing.
In this paper, we have investigated the impact that shoreside power could have on the CO2 emissions from ships at berth if the electrical power was drawn from national electricity grids. We have used International Energy Agency databases on electrical supply and atmospheric emissions to calculate the mass of CO2 which would be emitted if ships were to draw electrical power from national electricity grids and compared the results to the existing emissions from ships at berth reported in the literature. In addition, we have calculated the change in NOx, SO2, and CO emissions if shoreside power were to be implemented in the United Kingdom. We have found that in the majority of major maritime nations, the use of shoreside power drawn from national electricity grids could lead to a significant reduction in CO2 emissions, most notably in Japan, UK, and Italy. In the US, small reductions in CO2 emissions could be achieved, while in China shoreside power could lead to a 38% increase in CO2 emissions. We have demonstrated our findings using three case studies.

• 出版日期2010-5