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Who is the greenest of them all?

The first of a 20-vessel fleet has been repowered for increased operating efficiency and green future-proofing. Thames Clipper provides river services to over 4 million passengers each year from almost every major London pier on the River Thames.

PME Group has secured Thames Clipper as a major new client, re-powering the first of the fleet with MAN engines with the addition of SCR (Selective Catalytic Reduction).

SCR is an advanced active emissions control technology system that injects a liquid-reductant agent through a special catalyst into the exhaust stream of a diesel engine. The reductant source is usually automotive-grade urea, otherwise known as Diesel Exhaust Fluid (DEF). The DEF sets off a chemical reaction that converts nitrogen oxides into nitrogen, water and tiny amounts of carbon dioxide (CO2) which is then expelled through the exhaust pipe (explanation from the Diesel Technology Forum).

As the ‘Hurricane Clipper’ is one of the first vessels on the Thames to be fitted with SCR, the PLA (Port of London Authority) took the opportunity to commission the University of London to conduct emissions tests on the newly fitted MAN D2862 LE427engines. The results of the emission tests are now confirmed; the SCR managed to reach a reduction in NOx in comparison to the standard-fitted Caterpillar of up to 70 %.

It is the first time in its 20-year history that Thames Clipper has used MAN engines; the company announced its strategy for leading the way in the UK with MAN engines and SCR at the Inter-Ferry Conference earlier this year. The MAN engines and SCR were fitted on the successful conclusion ofextensive discussions between PME Group and Thames Clipper as to the best options for the company to implement its strategy.

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