Electric boat

In 2009, DFDS Canal Tours began offering electric boat tours of Copenhagen's canals as an alternative to its diesel boats. The first electric boat in its fleet was named the Den Grimme Ælling (The Ugly Duckling), a nod to the famous Danish poet and fairytale author Hans Christian Andersen.

The boat holds 170 passengers and has four large lithium ion batteries with enough power to operate all day. It recharges at night when not in service. In addition to reducing the cost and pollution of diesel fuel, the electric boats also provide a nice quiet ride.