Plans for the introduction of emissions-cutting shore power at UK ports are being explored by aviation and maritime minister Robert Courts, with views from the industry sought by 25 April.
Currently, berthed vessels must run onboard diesel engines to power lighting, galleys, air-conditioning and other amenities while in port.
The Department for Transport said: “It’s the equivalent of a car or van idling while parked, emitting polluting fumes into the air around ports and contributing to greenhouse gas emissions.