we conduct research into the use of cleaner and more efficient propulsion systems and cleaner fuel (see also the case text 'Greater sustainability in the chain');
we look at implementing energy-saving measures on our equipment;
we encourage recycling initiatives for parts such as worn-out pump casings, impellers, cutter teeth and floating dredging pipes;
we pursue a sustainable dismantling policy (see also the case text 'Industry leader in responsible ship dismantling');
where possible we take steps to ensure the separate collection and disposal of waste;
we use water efficiently and responsibly;
we encourage environmental awareness and motivation in our own employees and those employed on behalf of Boskalis.
For more information please refer to our corporate website www.boskalis.com/csr.
CO2 emissions in 2013
Boskalis measures and reports on the ﬂeet’s total CO2 emissions on the basis of fuel consumption. The absence of a clear measuring standard precludes the meaningful statement of relative emissions per production unit, making the annual consumption reports difﬁcult to compare, even without the effects of acquisitions and divestments. A complex set of factors comes into play here. Our dredging and offshore ﬂeet consists of different types of vessels, and the deployment of older or, conversely, more modern vessels and the capacity utilization of the ﬂeet also have a bearing on fuel consumption in a given year. In addition the nature of the projects can also result in a distorted picture; for example, a cutter suction dredger that has spent a year on projects involving a lot of hard soil will have much higher energy consumption than in another year when it has worked in softer soil.This means that higher or lower fuel consumption in a given year is not an adequate reﬂection of the quality of our environmental performance. We do not therefore believe it is useful to set a quantitative target for annual fuel consumption at this time.
In order to present balanced reporting on our fuel consumption and carbon emissions, Boskalis is working with others in the dredging sector to reach agreement about an industry standard for CO2 emissions per production unit.
In 2013, this resulted in a prototype for a new calculation model that can be used as a standard. In the Netherlands, Boskalis is negotiating through the Dutch Association of Hydraulic Engineers with the Ministry of Public Works for this calculation model to be applied to a program aimed at reducing carbon emissions on coastal replenishment projects.
Reporting at Dockwise is also complex because of differences in ﬂeet composition, age of the vessels, utilization of the vessels, distance travelled and cargo transported. All of these aspects affect ﬂeet energy consumption. Continuous improvements have been made to report, measure and reduce fuel consumption.In terms of both ﬂeet and ofﬁce organization associate companies are consolidated pro rata to the participating interest we hold.
The total group emissions in 2013 amounted to 1.63 million tons CO2 (2012: 1.05 million tons CO2). This increase of 55% is primarily attributable to the acquisition of Dockwise and its inclusion in the report. If Dockwise had been excluded, there would have been an increase of 4% in emissions.
The emissions for the Boskalis ﬂeet include, in addition to the traditional dredging vessels, the activities of SMIT. The total emissions amounted to 940,000 tons (2012: 901,000 tons). This increase of 4.3% can be attributed on balance to the following elements:
the higher level of utilization of the hopper fleet (44 weeks compared to 41 weeks in 2012) resulted in an increase in emissions by the hopper fleet of 7.3%;
as a result of the sale of the Ursa and lower utilization of the cutter fleet (16 weeks compared to 25 weeks in 2012), cutter fleet emissions fell by 45.8%;
as a result of the high level of activities and the resulting high level of fleet utilization, emissions from SMIT activities rose by 23.7%.
The CO2 emissions from the Dockwise ﬂeet amounted to 534,000 tons in 2013. This includes emissions for the entire calendar year but not the emissions for the Dockwise Yacht Transport activities, which were sold in 2013.
The CO2 emissions by Smit Lamnalco amounted to 156,000 tons. The increase of 3.8% is attributable in part to the takeover of the Harbour Towage activities in Gladstone, Australia and higher ﬂeet utilization in 2013.