Developing an industry revolution
As part of SVITZER’s overall strategy to minimise emissions and our environmental footprint in general, the first environmentally friendly ECOtugs have now been delivered. The ECOtug is modeled on the renowned M-class and is an example of our environmental focus, which is anchored in a fuel efficiency programme, new tug design initiatives and research on alternative fuels. The ECOtug is the world’s first IMO Tier 3 tug and is targeted at clients and harbours who have been looking for an environmentally friendly solution. We will continue to develop environmentally friendly tugs and we are already now in the process of developing the next generation of the ECOtug.
For two years, all components of the M-class have been analysed and optimised in order to make the ECOtugs as eco-efficient as possible. Applying the latest technology to minimise fuel consumption and emissions without compromising the high level of performance has been key.
Optimising engine efficiency
International research shows that medium-speed engines are most efficient when they operate at around 80-85 percent of their capacity, so the goal was to make the engines work as close to 80 percent as possible at all times during operation. The ECOtug’s three-part engine is designed with this in mind.
“When we don’t need full power, we only run on the necessary engine or engines. When we need more, we simply activate more. That way, we can stay close to the engine’s most efficient load zone at all times – regardless of what tasks we are solving. And that makes all the difference.”
Esben H. Grundtvig, Head of Group New Building.
THE SVITZER ECOtug – AN IMPORTANT FIRST STEP
The SVITZER ECOtugs are an industry revolution and an important step in SVITZER’s continuous efforts to minimise emissions. The ECOtugs feature both diesel-electric propulsion and fully electrical winches. In order to save fuel without compromising a high level of performance, three smaller engines make it possible to run the ECOtug at maximum efficiency at all times. The result is a 10 % CO2 reduction and up to 80 % NOX reduction, thereby meeting IMO Tier 3 requirements well before they come into effect in 2016.
This is only the first but very important step in SVITZER’s effort to minimise emissions while at the same time providing environmental and economical advantages for our clients.