Ports of Auckland has signed a contract with Dutch company Damen Shipyards to take delivery of the world’s first full-size, fully electric port tug in 2021 as part of its zero emissions policy. The new tug, a Damen RSD-E Tug 2513 will have a 70 tonne pulling power, the same as the port’s strongest diesel tug, Hauraki, also built by Damen. It will cost about $18 million.