Third IMO Greenhouse Gas Study 2014
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206 <strong>Third</strong> <strong>IMO</strong> GHG <strong>Study</strong> <strong>2014</strong><br />
Table 13 – Analysis of 2011 and 2012 observed cargo-carrying fleet<br />
% IHSF coverage Qualitative<br />
field quality<br />
Field 2007 2008 2009 2010 2011 2012<br />
Statcode3 100% 100% 100% 100% 100% 100% Representative<br />
Statcode5 100% 100% 100% 100% 100% 100% Representative<br />
gt 100% 100% 100% 100% 100% 100% Representative<br />
dwt 99.1% 98.9% 98.7% 98.3% 98.0% 98.1% Representative<br />
length 30.5% 31.9% 38.9% 40.6% 39.7% 43.2% Speculative<br />
beam 77.6% 79.8% 86.6% 86.6% 88.9% 93.5% Speculative<br />
max draught 99.0% 98.7% 98.7% 98.6% 98.3% 98.5% Representative<br />
ship speed 90.2% 88.1% 89.1% 89.6% 87.7% 93.3% Representative<br />
installed ME power 99.3% 99.2% 99.3% 99.4% 99.0% 99.1% Representative<br />
RPM 55.6% 61.9% 79.9% 90.0% 90.3% 91.6% Speculative<br />
ME consumption 35.0% 32.9% 31.0% 28.8% 27.1% 24.7% Speculative<br />
total consumption 33.0% 31.0% 28.9% 26.5% 24.8% 22.3% Speculative<br />
propulsion type 100% 100% 100% 100% 100% 99.1% Representative<br />
number of screws 100% 100% 100% 100% 100% 100% Representative<br />
date of build 100% 100% 100% 100% 100% 100% Representative<br />
keel laid date na na na na na 91.9% Representative<br />
An evaluation of the cargo capacity fields was also conducted for the 2011 and 2012 IHSF data sets. TEU<br />
capacity coverage for the container subclass was nearly 100% for both years, but reefer slot capacity coverage<br />
was less than 1% in both years. There was 100% coverage for cbm capacity for the liquefied gas carrier<br />
subclass in both years. There was over 90% coverage for vehicle capacity for auto carriers (pure car carriers)<br />
in both years, but there was less than 55% coverage for vehicle capacity for all the rest of the ro-ro cargo<br />
subclass.<br />
Noon report data for activity and fuel consumption quality assurance<br />
Description of noon report data<br />
Noon reports are records kept by the crew of a ship with the information used for a variety of management<br />
processes both on board and ashore. There is no standard report format, but most operators collect very<br />
similar data, and in most cases the reporting frequency (every day at noon when at sea) is the same. In some<br />
cases, per-voyage aggregate data only is available. The data used in this report, and the ship types that it<br />
includes, have been generously donated by the operators listed in Table 14. The composition of the fleets<br />
used (number of ships by ship type category), after filtering out ships where noon report coverage over the<br />
entire quarter is incomplete, is listed in Table 15. The total number of observations is approximately 60,000<br />
days’ operation.<br />
Table 14 – List of operators and their fleets (number of ships) used in this analysis<br />
Operator 2007 2008 2009 2010 2011 2012<br />
Gearbulk 0 0 0 0 0 63<br />
V.Ships 2 2 5 11 14 42<br />
Shell 0 0 0 0 61 0<br />
Carbon Positive 16 18 18 26 46 65<br />
Totals 18 20 23 37 121 170
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