Named the MV Ampere, she’s been running since 2015 between two villages on opposite banks of a fjord. She’s powered by two 400kW thrusters, with 1000kWh of battery onboard. She’s a bit pokey with a 10kt cruise but the crossing is only 20 minutes with over 30 trips made per day. A combination of (hydropower) mains and stationary batteries on the shore are used to keep her topped off during her turnaround times.
It’s estimated that she saves about a million litres of diesel fuel annually, as well as offsetting almost 600 tons of CO² emissions compared to conventional ferries on the route.
It’s really cool that they’ve done this, and apparently it’s been enough of a success that 30 more have been ordered for other routes throughout the country.