DNV GL, Norway.
DNV GL, Norway.
Mar Pollut Bull. 2019 Dec;149:110561. doi: 10.1016/j.marpolbul.2019.110561. Epub 2019 Sep 7.
This study investigates conditions under which differentiating port fees based on vessels' environmental performance could be an additional driver for cruise-ship owners to invest in green technologies. Our case study on liquefied natural gas (LNG) as fuel for a cruise ship shows that port-based incentives could help reduce emissions to air and drive uptake of green technologies. Assuming an average rebate of EUR 1500 per port visit, the accumulated rebates globally for our case study ship exceed EUR 400,000 per year. Applying a rebate of nearly EUR 4800 per visit as currently offered in Norwegian ports, and assuming 50% of ports globally adopt the scheme, gives a cost benefit of EUR 700,000 per year, reducing the LNG technology payback time up to one year. Our case study also shows that significantly reducing ship emissions in ports will bring social benefits through reduced risks of loss of life, health and wellbeing.
本研究探讨了根据船舶的环境绩效来区分港口费用的条件，这可能成为促使游轮所有者投资绿色技术的额外动力。我们以液化天然气（LNG）作为游轮燃料为例，研究表明，基于港口的激励措施可以帮助减少空气排放，并推动绿色技术的采用。假设每次靠港的平均回扣为 1500 欧元，我们案例研究中的船舶每年在全球范围内的累积回扣超过 40 万欧元。如果挪威港口目前提供的每次靠港回扣接近 4800 欧元，并假设全球有 50%的港口采用该方案，那么每年的成本效益将达到 70 万欧元，从而将 LNG 技术的投资回报时间缩短至一年。我们的案例研究还表明，在港口显著减少船舶排放将带来社会效益，降低生命、健康和福利损失的风险。
