ClassNK and maritime software company Napa have announced that Taiwan-based Wan Hai Lines Ltd. has chosen ClassNK-Napa Green ship efficiency software for use on Wan Hai 516, a 4680 TEU vessel delivered by CSBC in April 2013. This marks the first time that the operational optimization and SEEMP (Ship Energy Efficiency Management Plan) solution will be installed commercially on an existing vessel. The announcement was made at a signing ceremony attended by representatives from Wan Hai Lines, ClassNK, and Napa held at Wan Hai Lines headquarters in Taipei, Taiwan on May 7, 2013. The ClassNK-Napa Green system is a new comprehensive software…