随着2022年关将至，行业的焦点聚集在即将于2023年1月正式生效的两项船舶碳排放规则：CII和EEXI。EEXI（Energy Efficiency Existing Ship Index）旨在为营运船舶的技术能效要求框架，而CII（Carbon Intensity Indicator）意在衡量船舶在运送货物或乘客时的营运能效。这两项新规的并行实施，也许正是航运业绿色转型的发令枪。
CII & EEXI: fast approaching deadlines and a requirement to act
For those of us that are closely in tune with the maritime industry’s decarbonisation journey, the last few years have been nothing short of remarkable. From a fringe issue to a mainstream commercial and strategic concern, improving sustainability within shipping is now the industry’s most discussed and debated topic.
This debate has heightened the profile, role and uptake of clean technologies like Silverstream’s air lubrication technology, the Silverstream® System. Proven clean technologies have moved from being the preserve of a few first movers, to a widespread and understood solution for the global fleet, because of their critical role in ensuring commerciality and compliance.
As we near the end of the year, attention now turns to CII and EEXI and their successful implementation starting in January 2023. EEXI is a framework for determining the efficiency of the design of in-service vessels and CII is an operational measure of how efficiently a ship transports goods or passengers. Together, they could represent the start of shipping’s green transition.
While EEXI is a one-time certification targeting design parameters, CII addresses the actual emissions in operation, and the combination of both rules is pushing many operators to pursue ‘quick wins’ including engine power limitations and slow steaming to reduce their carbon impact.
As a one-time certification, EEXI is arguably easier to solve. It will drive more efficient vessel designs in the near term, which is needed anyway by an industry undergoing a hugely transformative energy shift.
CII is a different matter entirely. Firstly, charterparty agreements will hold huge sway in terms of both CII performance and CII compliance. While the burden for compliance will fall on the owner, they may be swayed by charterer requirements for ship operation. As a huge portion of CII performance is related to this actual ship operation, any contractual requirements such as fuel type, speed warranties and route will need to be settled and agreed in advance to ensure there are no surprises at the end of each reporting year.
CII, then, requires constant inclusion in operational strategies going forward. This constant pressure is both what is driving the pursuit of quick wins like slow steaming and is also the fundamental reason why slow steaming will not work in the long term. Not only does it fail to address the underlying aim of design efficiency, unlike EEXI, for example, but it also can significantly constrain operational flexibility.
Caught between the pressure to act immediately and the reality that there is a relative lack of solutions that the sector can adopt in the near term, proven clean technologies like the Silverstream® System are clearly one of the best levers that the industry can pull and install across their fleets, particularly if operators are looking for lifecycle solutions.
And it is vessel efficiency, not slow steaming, that is becoming a commercial imperative as financial institutions, charterers and cargo owners work to meet their own ambitious decarbonisation targets.
Proven, fuel agnostic and readily available clean technologies that can be retrofitted to the existing global fleet are vital to ensuring we reduce emissions today. What’s more, they are enabling owners and operators to retain their competitive advantage, while meeting long term regulatory goals, at this crucial period in shipping’s decarbonisation mission.