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www.marinelink.com 61The Software ?This system provides an opportunity for the shipbuilder to understand how a ship operates efÞ ciently in real world conditions. Once they know, they can improve their design to enhance the efÞ ciency of the ships,? said Yasushi Nakamura, Executive Vice President, ClassNK. The ClassNK-NAPA GREEN software system is a joint develop-ment between Nippon Kaiji Kyokai (ClassNK), the world?s largest ship clas- siÞ cation society, and NAPA, a com- pany which offers software both for the design of ships as well as the operation of ships. In fact, it is this unique com-bination, according to Juha Heikinhei-mo, President, Napa Group, that makes NAPA stand out amongst a growing sea of software solution providers.?Napa has the possibility now, with ClassNK to develop a dynamic perfor- mance model, developing a 3D model of the ship according to the different sea states and conditions, in order to predict accurately the coming voyage,? Heikin-heimo said. ?Nobody provides a loading computer, with all of these operational devices, in real time, based on facts that you understand from the 3D model.?He claims this is a powerful combi-nation, both in terms of helping exist-ing ships to save energy, but more so in incorporating the date into future, more fuel efÞ cient design. Feedback from the ship?s real-world operational ef Þ ciency under a diversity of conditions can be fed back directly to the ship designer and builder, helping them to design and build ships based on real operational conditions and parameters, instead of designing for optimal conditions.?It is not the fuel consumption savings, it is Normalized data based energy sav- ings,? said Heikinheimo, ?and we see proven 6% absolute energy savings.? The software solution was launched in 2012, and builds upon the shared ex-perience of both organizations to pro- vide a solution to reduce fuel spend and greenhouse gas emissions whilst also providing compliance with ship energy efÞ ciency management plan (SEEMP) legislation. Bore has been working closely with NAPA around operational software for vessels for sometime. ?It is heartening to see the industry embracing the Þ nancial and environ- mental beneÞ ts that software systems such as ClassNK-NAPA GREEN offer,? said Nakamura. ?We are aware of the increasing challenges being placed on shipping Þ nancially, environmentally and through increased regulation.?In the trial with Bore, according to the shipowner, speed optimization (and by natural default extensive route plan-ning which helped to cut down on speed ß uctuation) was hands-down the big- gest factor in saving energy. And while all of the partner were remiss to put a price tag and ROI on the solution, (in part because, regarding ROI, results are dependent on the age of the vessel and the route it serves) Mansnerus did con-cede that the return on investment was less than one year, and in the test case, closer to six or seven months.?We challenged NAPA last year to see if they could deliver further improvements on ships that are already new and ef cient.? The Answer: ClassNK-NAPA GREEN helped reduce energy consumption 6% on a 2011-built RoRo vessel. Jörgen Mansnerus, VP, Marine Management, Bore Ltd. MR #10 (58-65).indd 61MR #10 (58-65).indd 6110/3/2013 2:50:02 PM10/3/2013 2:50:02 PM