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FERRIES CalMac’s Lochinvar is one of two hybrid ferries built by CMAL SEARCH FOR GREEN OPERATIONS Batteries give new power to European ferry market L NG may be winning the attention of ferry operators here in North America but over in Europe another form of green energy is gaining attention: hybrid diesel electric propulsion systems. An integral aspect of the hybrid propulsion package is the use of lithium-ion batteries. With their small on-board footprint and powers of reduction on both the fuel consumption and emissions front; as well as their long-life, battery systems are a ideal alternative for ferry operators looking to save. One ferry operator taking on the hybridization of its fleet is Scandlines. By the end of this year, the operator, which provides ferry service between Sweden, Denmark, and Germany, will have the largest hybrid ferry fleet in operation. That’s because Scandlines is the first to use an on-board hybrid propulsion system on a large scale—equipping four of its ferries with the system. The hybridization of its fleet is just one part of the company’s environmental initiative program. Back in 2013, Scandlines announced that over the course of two years—concluding in 2015—it would invest more that EURO 40 million in sustainable technologies on its Puttgarden–Rødby and Rostock-Gedser routes. The first phase of its environmental investment program includes the use of EURO 14 million to refit four of its ferries with a hybrid propulsion system. “The hybrid propulsion system,” says Scandlines CEO, Søren Poulsgaard Jensen, “is a key element of our strategy for more sustainable ferry traffic.” 40 MARINE LOG June 2014 By Shirley Del Valle, Associate Editor The EU via the TEN-T Program is providing financial aid to Scandlines’ environmental program. The hybrid system incorporates the world’s largest hybrid propulsion marine battery pack—the result of a collaboration between Canada-based Corvus Energy and Siemens. According to Corvus, each of the four Scandlines ferries will be equipped with a 2.7 Mwh Energy Storage System (ESS). The ESS is comprised of Corvus Energy AT6500 advanced lithium polymer batteries integrated with Siemens’ drive systems. “The 2.7 Mwh of modules are the most reliable and safe battery in the world, designed to operate both house and driveline systems,” says Brent Perry, CEO of Corvus Energy. “Scandlines is making a significant investment in new green technology that will benefit the people in the areas adjacent to the harbor and beyond in terms of reduced pollution,” says Fini Hansen, Technical Superintendent, Fleet Management, Scandlines. The first ferry to be fitted with the system was the 142 m RoPax MF Prinsesse Benedikte. The hybrid system helps reduce the 1,140-passenger ferry’s CO2 emissions by up to 15%. Optimizing the ship’s engine output, the system allows the ferry to operate on one diesel generator on each crossing, slashing energy usage and operating costs. Specifically, the batteries are used for two reasons: 1. Spinning reserve—Here the batteries provide immediate emergency power for steering and propulsion should the main engines fail;

June 2014 Marine Log

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