Global Electric Ship Market Assessment, By Propulsion Type [Fully Electric, Hybrid], By Carriage Type [Passenger, Cargo, Others], By Battery Type [Lead-Acid, Lithium-ion, Nickle-based Batteries], By Power [<75 kW, 75-150 kW, 151-745 kW, 746-7,560 kW, >7,561 kW], By Tonnage [<500 DWT, 500-5,000 DWT, 5,001-15,000 DWT, >15,000 DWT], By Region, Opportunities and Forecast, 2017-2031F