克拉克森:降低船速以提高CII评级的作用被高估

Speed reduction for CII improvement is grossly overestimated

发布者:KnowMi 发布时间: 2023-05-17 11:05:09 点击量: 1126 来源:Maritime-executive


国际海事组织(IMO)的船舶营运碳强度指标(CII)及评级机制已于今年年初生效,预计全球大部分船队将通过降速来履行公约,从而进一步影响其资产价值。由Kenneth Tveter领导的绿色转型分析团队认为,通过船舶降速来提高船东CII评级的这一措施“被严重高估了”,这一传统方法并没有那么奏效。虽然对于某些船舶来说,必须要大幅降速才能履约,但对于其他船舶来说,减速根本不可行,而且通常需要采取成本更高的效率措施或船舶改进措施。针对这一分析结果,该团队推出了一种新的CII评估建模工具以提供帮助。他们表示,尤其是在船舶低速的情况下,在预测实际的燃料消耗和CII评级方面,该工具的准确性已被证明比传统的建模方法高出30%。


The operational measure adopted by the IMO, Carbon Intensity Indicator (CII), came into effect at the start of the year. As a result, a large share of the global fleet is expected to reduce sailing speed in order to comply, which would impact asset values. The Green Transition team, headed up by Kenneth Tveter, argue that CII improvement potential as a result of speed reduction can be grossly overestimated and that it will not necessarily improve CII ratings. Whilst some ships are needing to slow down significantly to comply, for others speed reduction isn’t viable at all and other costly measures and improvements need to be done. To assist, the Green Transition team has launched a new CII Assessment Modelling tool that, in some instances, has proven to be 30% more accurate than traditional modelling methodologies in predicting real-world fuel consumption, and CII, especially at lower speeds.