Offshore wind developer Orsted plans to test the prototype of a next-generation buoy that would double as both a mooring point for supply vessels as well as charging station, with the longer-term potential to offset the tens of thousands of tons of fuel consumed every year in the wider maritime sector.

The systems, devised by maritime contractor Maersk Supply Service (MSS), can be used to charge battery- or hybrid-electrical-powered vessels as well supplying power to larger ships, so that they can turn off their engines when idling, “virtually eliminating all emissions” by substituting fossil-based fuels with green electricity.