Trend towards more environmentally friendly transportation

2008

Excerpt from Annual report 2008

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In all areas of shipping, extensive work on the global level is being conducted with the aim of further increasing safety and minimising the negative environmental impact. With the vessels in its P-MAX fleet, Concordia Maritime has contributed to raising the standard.

The environmental impact of tanker shipping consists mainly of emissions from the vessels’ engines, the use of toxic bottom paint, discharges of different types of water that have been used on board and the impact on the marine environment of emptying ballast water.

Reducing greenhouse gases as well as emissions of sulphur and nitric oxide is one of the most prioritised environmental issues in shipping. The work on making improvements is being conducted on several different levels and covers both technical developments and research on new types of environmentally friendly fuels. Sulphur is difficult to remove after it has been emitted and, consequently, the most effective way of protecting the environment is to burn bunker oil with a lower sulphur content. This oil is far more expensive and therefore agreements at the regional or global level are needed to ensure competitive neutrality.

In 2008, the UN agency IMO (International Maritime Organization) decided to gradually lower the limits for emissions of both sulphur and nitric oxide. The most farreaching reductions will be introduced in the Sulphur Emission Control Areas (SECA) in the English Channel, the North Sea and the Baltic Sea. However, global shipping will also have to adapt to bunker oil with a lower sulphur content than today.

Tougher regulations are also expected to be introduced for discharges of ballast water. The goal of the new ballast water regulations is to prevent living organisms from spreading from one region to another. The transfer of organisms is regarded as one of the greatest threats to the oceans and one of shipping’s most difficult problems.

More environmentally friendly ship recycling

In recent years, the shipping industry has taken measures to reduce the impact of ship recycling on the environment and humans. In 2008, another step was taken as a result of MEPC’s (Marine Environment Protection Committee) proposal for tougher environmental regulations applying to the whole chain from ship design and construction to operation and recycling. For example, all the material on board would have to be classified and the whole scrapping process structured and certified. This is something Concordia Maritime has been doing ever since the first P-MAX tanker was delivered in 2005. The Stena Paris was the first vessel to be certified in accordance with Det Norske Veritas’ “Green Passport”.

The proposal will be presented to the member countries for ratification during spring, 2009.

Concordia Maritime’s environmental work

Quality, environment and safety have been guiding principles in Concordia Maritime’s business for many years. The company’s safety and environmental work has two overall aims: to prevent accidents by working preventively and to minimise the amount of hazardous discharges to the sea and air.

Concordia Maritime’s P-MAX concept was developed with the goal of combining good transport economy with concern for people and the environment. Its vessels are among the world’s safest product tankers.

Interview with Jacob Norrby

Jacob Norrby at Stena Teknik is the project manager for the development of the P-MAX concept.

How does the P-MAX fleet compare from an environmental perspective?
“Very well. The greatest advantage the vessels have from an environmental perspective is their lower fuel consumption in relation to their larger loading capacity. The shape of the hull and the twin skeg are optimised for minimum energy consumption”.

A tanker is in active service for about 25 years. What happens to it after that?
“Most often, they are either recycled or used as floating storage for a period of time. When we designed the P-MAX tankers, we put a lot of work into optimising them from a life cycle perspective, that is, also after they have been withdrawn from service. The Stena Paris, for example, was the first newbuilding in the world to be certified with Det Norske Veritas’s “Green Passport”. The idea here is that there should be a complete inventory of all the materials in a vessel in order to be able to simplify environmentally friendly recycling”

What is being done to improve the vessels’ environmental performance still further?
“The P-MAX tankers are being continuously improved and developed. On two of the vessels, for example, we have installed a so-called VA turbine (Variable Turbine Area). The turbine’s job is to improve efficiency and thus reduce fuel consumption at part load. The installation is the first in the world for marine application and the test results indicate a fuel reduction of 2–4 per cent”.

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