Sulphur oxide (SOx)
As SO2 emissions are harmful to people and the environment, NORDEN aims to reduce our emissions of SOx mainly through the purchase of bunkers with reduced sulphur content. Bunkers is the fuel oil used by vessels. NORDEN’s target in 2015 was a weighted average sulphur content of 2% for total bunkers purchased for our operated vessels, which was not reached by achieving a total of 2.01%.
In January 2015, all Emission Control Areas (ECAs) introduced a sulphur control limit of 0.1%. There has been no shortage of availability of low sulphur oil since the introduction of the new requirement limit. The majority of bunkers bought by NORDEN for use in ECAs has been gasoil, which has a sulphur limit of 0.1%. In 2015, around 15% of our total bunkers purchased was gasoil of which around 7% was Ultra Low Suplhur Oil (ULSFO).
The next regulation comes into effect January 2020 and concerns global sulphur limits. These will go from 3.5% to 0.5%, though the ECAs will still preserve a sulphur limit of 0.1%. However, if in 2018 it is not deemed possible to reach this goal and thereby implement the regulation, IMO will postpone it until 2025.
Nitrogen oxide (NOx)
NORDEN's strategy is to have a young and modern fleet, which has a positive effect on our reduction of NOx emissions. NORDEN focuses on reducing emissions of Nitrogen Oxide (NOx), which is harmful to people and the environment as it causes smog and acid rain.
Based on a vessel’s construction date, the IMO has defined different tiers, which have different criteria for NOx limits. All NORDEN’s 119 vessels in our core fleet are as a minimum Tier I compliant as they are all built after 1 January 2000. Out of these, 61 of NORDEN’s vessels are Tier II compliant as they are built after 1 January 2011, which means that they emit 15% less NOx emissions per ton of fuel consumed than vessels that are Tier I compliant and 36% less than vessels that are not Tier I compliant. This entails that 58 of NORDEN’s vessels in our core fleet are merely Tier I compliant, which means that they emit 13% less NOx emissions per ton of fuel consumed than vessels that are not Tier I compliant.
All of NORDEN's waste is disposed of in accordance with the rules set forth by the IMO. To minimise the amount of waste, NORDEN asks suppliers to reduce their packaging or take it back, which gives less packing on board the vessels. In addition, NORDEN instructs crew members in how to recycle on board the vessels and dispose of waste according to the regulations and the designated waste containers.
In 2015, NORDEN's target was to reduce waste from the 2014 level by 5% from owned vessels operated by NORDEN. NORDEN had a reduction of 17% thus meeting the target. The relative high decrease of the accumulated waste is a consequence of increased focus and monitoring in combination with an initiation of technical solutions on board.
Ballast water treatment system
Planning, selection and implementation of ballast water treatment systems depend mainly on the legislation from the IMO as well as the legislation established by the US Coast Guard (USCG). The IMO’s ballast water management convention of 2004 has not yet been ratified, and the US Coast Guard has yet to grant type approval to any of the existing ballast water treatment systems. The US Coast Guard has therefore decided to allow shipping companies to apply for an extension until US Coast Guard type approved systems are available. NORDEN is prepared to install ballast water treatment systems after such systems, feasible for NORDEN’s vessels, are type approved by the US Coast Guard or the IMO convention is ratified.
Onshore energy consumption
NORDEN installed a new ventilation system at the head office in Hellerup over the summer, which according to the estimates from the supplier, should result in an energy reduction of approximately 5%. However, the real benefits of the system will only be visible end 2016, when the system has been in operation for a full year.
Besides the change in ventilation, NORDEN focuses on decreasing NORDEN onshore energy consumption through gradual changes. NORDEN's overall aim is to reduce energy consumption per employee compared to last year. One of the means to do so is to favour the most energy efficient solution when repairing or changing equipment in NORDEN’s offices.
NORDEN's energy consumption has increased from 4.7 MWh per employee in 2014 to 5.2 MWh per employee in 2015. The increase is due to several factors, such as fewer employees in NORDEN's overseas offices as well as a cooler spring and summer in Denmark which resulted in increased heating consumption at our head office in Hellerup.