# Paper "The role of energy efficient regulations" by Maersk Mc-Kinney Moller Center

**URL:** <https://www.queseas.com/t/paper-the-role-of-energy-efficient-regulations-by-maersk-mc-kinney-moller-center/832>\
**Category:** Decarbonization\
**Tags:** cii, eexi, eedi, decarbonisation, maersk\
**Created:** [August 25, 2023, 2:16pm UTC](https://www.queseas.com/t/paper-the-role-of-energy-efficient-regulations-by-maersk-mc-kinney-moller-center/832 "2023-08-25T14:16:27Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Raj.Raganathan](https://avatars.discourse-cdn.com/v4/letter/r/bbe5ce/32.png) [@Raj.Raganathan](https://www.queseas.com/u/Raj.Raganathan)\
**Post date:** [August 25, 2023, 2:16pm UTC](https://www.queseas.com/t/paper-the-role-of-energy-efficient-regulations-by-maersk-mc-kinney-moller-center/832/1 "2023-08-25T14:16:27Z")

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Hello!  
Another well written paper by Maersk Mc-Kinney Moller Center for Zero Carbon Shipping.  
Paragraph 6 discusses the unintended increase in global emissions that the CII regulation might cause. Check the below passage:  
"**6.1 The risk of increased emissions  
There is a non-negligible risk that some of the energy efficiency regulations discussed in this report will lead to increased GHG emissions. This may seem counter-intuitive: however, it is important to highlight that the metrics underlying the regulations focus on carbon intensity (i.e., grams of CO2 per tonne-nautical miles), and that it is possible to decrease carbon intensity while increasing actual CO2 emissions. To give an extreme example, emissions from a vessel that stays in port for most of a given year will have no nautical miles attached to them, leading to an excessively high attained CII. On the other hand, a vessel that sails for most of the year will simultaneously increase its emissions and its nautical miles sailed, yielding a good CII rating. Perversely, the latter situation leads to much higher CO2 emissions but a better CII rating.  
Therefore, the CII does not penalize all CO2 emissions equally. For the purposes of attaining a good CII rating, there is a greater benefit from reducing the ‘non-sailing’ (i.e., not leading to motion) CO2 emissions, even if smaller in quantity, than in reducing the ‘sailing’ (i.e., leading to motion) CO2 emissions. In fact, the process of reducing the ‘non-sailing’ CO2 emissions may see them replaced by more carbon-intense ‘sailing’ emissions.**  
[The role of Energy Efficiency Regulations\_v9.pdf](https://www.queseas.com/uploads/short-url/nLt5WOPnDI8zC7fO6axQYXKi9Q1.pdf) (11.5 MB)