Posted - Tuesday, 16 April 2013 | 00:00 - Hellenic Shipping News Worldwide - Source - DNV
DNV now offers shipowners the support they need to make newbuilds and
existing vessels ‘LNG ready’ with class approved designs, ready for
later, simple retrofit of LNG technology. The service enables shipowners
to make smart choices and minimal investments now in readiness for when
LNG bunkering becomes widely available.
Shipowners are supported through all stages of the decision-making
process as they prepare to meet the IMO air emission regulations
entering into force from 2015. There are three obvious technology
options for meeting Emission Control Area (ECA) requirements: installing
a scrubber, switching to low sulphur fuel oil or to go for LNG as fuel
and installing gas engines. Alternative fuels such as methanol and
biofuels are also being developed.
“Each option has different uncertainties, for example the relative
immaturity of some technologies and the effect market forces will have
on the price of the different fuels. These factors are making commitment
to a specific solution particularly difficult at this point in time,”
says Dr Gerd-Michael Würsig, Business Director for LNG fuelled ships at
DNV. “The cheapest investment may end up being the most expensive option
in the long run, so many shipowners are rightly cautious.”
DNV believes LNG will be a good solution for many for meeting both SOx
and NOx requirements. However, the right option will depend on the
shipowner’s time horizon, says Dr Würsig. A wrong technical decision
could increase the cumulative cost of operation by millions of US
dollars over the ship’s lifetime.
“Several elements must be in place before realizing the benefits of an
LNG fuelled vessel,” says Martin Wold, DNV’s project manager for the LNG
ready service. Shipowners should start with seeking answers to these
questions: Does LNG as fuel make sense financially for my project? Under
which conditions will it make sense in the future? Are there feasible
and practical ways of implementing LNG fuel in my project? “We recommend
our clients to take a step-wise approach, and these are all questions
we help them answer in the first stages of the LNG ready service,” he
says. “After verifying the financial attractiveness and the technical
feasibility on a high level, we move into the more detailed technical
assessments if the client decides to proceed.”
Even though LNG looks sensible after investigating the options,
shipowners may still be hesitant to invest in expensive technology. The
ability to have an ‘LNG ready’ ship provides them with a sensible
alternative. “To ensure readiness for LNG as a fuel, DNV offers
verification of the design concept and confirmation of compliance
through DNV’s Approval in Principle,” says Torill Grimstad Osberg, head
of DNV’s LNG, Cargo handling & Piping systems section. “DNV helps to
identify and mitigate the risks associated with a given design to
ensure the development of a safe system right from the beginning.”
DNV has already provided ‘LNG ready’ services to a number of clients as they start preparing for 2015.
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