Electric ferry Ellen sailed 50 nautical miles – 92 kilometers – on a single battery charge during the International Energy Agency’s 7th Annual Conference on Energy Efficiency. The distance marks a new world record. The islands of Ærø and Als in Southern Denmark are connected by Ellen, the longest ranging fully electric ferry in the world. Ellen set a new world record on June 9 just outside the windows in Sønderborg, Denmark, where leaders from industry, government, and civil society joined the International Energy Agency (IEA) for the 7th Annual Global Conference on Energy Efficiency. (....)