- Ports - Marine electrification - shore power ## Shore power dramatically cuts emissions at ports – but will anyone use it? Portsmouth International Port has taken a huge step towards reducing the air pollution caused by idling marine engines with the launch of the UK’s first high-voltage, multi-berth shore power system that allows docked ships to connect to grid power and shut off their on-board generators. In theory, shore power reduces emissions and slashes fuel costs. The reality is somewhat different. Like the Port of Long Beach, the Port of New York and New Jersey, and JFK’s Terminal…