Source IMO vom 14.11.2011
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 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. Amongst the key
findings, the report found that:
- By 2020, an average of 151.5 million tonnes of annual
CO2 reductions are estimated from the introduction of the EEDI for new ships
and the SEEMP for all ships in operation, a figure that by 2030, will increase
to an average of 330 million tonnes annually.
- Compared with Business as Usual (BAU), the average
annual reductions in CO2 emissions and fuel consumed are estimated between 13%
and 23% by 2020 and 2030 respectively.
- CO2 reduction
measures will result in a significant reduction in fuel consumption, leading to
a significant saving in fuel costs to the shipping industry, although these
savings require deeper investments in more efficient ships and more
sophisticated technologies, as well as new practices.
- Significant reduction of CO2 emissions from ships due
to EEDI and SEEMP regulations is foreseen to 2050 with emission reduction due
to SEEMP likely to be realised more rapidly than that for EEDI, as the effect
of EEDI will occur only as and when older, less efficient, tonnage is replaced
by new, more efficient tonnage.
- The estimated
reductions in CO2 emissions, for combined EEDI and SEEMP, from the world fleet
translate into a significant annual fuel cost saving of about US$50 billion in
2020 and about US$200 billion by 2030; using fuel price increase scenarios that
take into account the switch to low-sulphur fuel in 2020.
- Mandatory application of EEDI will drive more
energy-efficient ship design and realise the CO2 emission reduction potential
associated with technical innovation and the use of lower or no carbon fuels.
- The mandatory
use of SEEMP based on current IMO regulations will provide a procedural
framework for shipping companies to recognise the importance of the operational
energy- saving activities. It will significantly boost the level of awareness
and, if implemented properly, will lead to a positive cultural change.
- Investigations show that ship hydrodynamic and main
engine optimisation will bring about energy-saving opportunities of up to
around 10% with no significant additional cost of shipbuilding.
- The IMO regulations represent the first-ever mandatory
energy efficiency measures for an international transport sector and their
adoption followed several years of work on the matter. Work is now progressing
on market-based measures, with intensive work to review a number of different
proposals, submitted by Governments and observer organizations.
Further work will be carried out on market-based measures
in 2012. Such measures would place a price on greenhouse gas emissions, thereby
providing both an economic incentive for the maritime industry to invest in
more fuel-efficient ships and technologies and to operate ships in a more
energy-efficient manner and a mechanism to offset growing ship emissions in
other sectors. In addition, these measures can generate funds that could be
used, for example, for projects to mitigate climate change in developing
countries.