An IMO-commissioned study into the impact of mandatory energy efficiency measures for international shipping shows that implementation of the measures will lead to significant reductions of greenhouse gas (GHG) emissions from ships, specifically reductions of carbon dioxide (CO2), resulting from enhanced fuel efficiency.
The study found that, by 2020, an average of 151.5 million tonnes of annual CO2 reductions are estimated from the introduction of the measures, a figure that by 2030, will increase to an average of 330 million tonnes annually. CO2 reduction measures will result in a significant reduction in fuel consumption, leading to a significant saving in fuel costs to the shipping industry
The study, Assessment of IMO mandated energy efficiency measures for international shipping*, was launched on Monday (14 November) ahead of the forthcoming United Nations Climate Change Conference, to be held in Durban, South Africa, from 28 November to 9 December, 2011.
IMO will report to that Conference on the breakthrough adoption, in July 2011 at IMO's Marine Environment Protection Committee (MEPC), of mandatory technical and operational measures to reduce GHG emissions from international shipping. Amendments to the International Convention on the Prevention of Pollution from Ships (MARPOL), Annex VI Regulations for the prevention of air pollution from ships, add a new chapter on Regulations on energy efficiency for ships. The regulations will apply to all ships of 400 gross tonnage and above and are expected to enter into force on 1 January 2013.
This new chapter makes mandatory the Energy Efficiency Design Index (EEDI), for new ships, which, in essence, requires new ships to be designed to be more energy efficient (and thereby release less greenhouse gases). The regulations are non-prescriptive: as long as the required energy-efficiency level is attained, ship designers and builders are free to use the most cost-efficient solution or solutions for each particular ship.
The new regulations also make mandatory a Ship Energy Efficiency Management Plan (SEEMP) for all ships. This is a plan which sets out, for an individual ship, how energy savings can be made.
There are a variety of options to improve efficiency – speed optimization, weather routeing and hull maintenance, for example – and the best package of measures for a ship to improve efficiency differs to a great extent depending upon ship type, cargo, route and other factors. The new regulations make such a ship-specific plan mandatory thereby encouraging the shipping industry to review its practices in a systematic way to find the best balance.
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