Lerwick Harbour in Shetland, Scotland, is expanding its shore power infrastructure with a new project that will enable NorthLink passenger ferries to connect directly to the local electricity grid while berthed.

The scheme, developed in partnership with Caledonian Maritime Assets Limited (CMAL), will install shore power facilities at Holmsgarth Berth 3 to support both current and future ferry operations, Lerwick Harbour announced in a statement on its website on Monday.

The project is fully funded by CMAL and Transport Scotland. The investment aligns with Scotland's legally binding target of reaching net zero emissions by 2045, five years ahead of the overall UK target, as well as the Scottish Government's broader commitment to decarbonising ferry services serving island communities. Frank L Johnston (Shetland) is carrying out the civil works, while ABB Marine & Ports UK will install and commission the electrical system. Arch Henderson, part of Haskoning, is leading the design and construction oversight.

Once operational, the system will allow vessels to switch off their auxiliary diesel engines while alongside and draw electricity from the harbour's power network instead. Shore power, also known as cold ironing or onshore power supply, is increasingly adopted at ports worldwide as a measure to reduce emissions, noise, and air pollution in port areas. The International Maritime Organization has set a target of net zero greenhouse gas emissions from international shipping by or around 2050, accelerating interest in onshore power supply as one of the available tools for cutting at-berth emissions.

The Holmsgarth Berth 3 project builds on Lerwick Harbour's existing shore power capabilities. Since installation, the harbour's facilities at Mair's Pier have supplied nearly 9 GWh of electricity to connected vessels.

NorthLink Ferries, operated by Serco under contract to Transport Scotland, provides lifeline passenger and freight services connecting the Scottish mainland with Orkney and Shetland. Lerwick Harbour, located in the Shetland Islands, is one of the UK's most northerly commercial ports and serves as a key maritime hub for the region.

CMAL, a Scottish Government-owned body, is responsible for owning and maintaining ferries, ports, and harbours used by CalMac Ferries and NorthLink Ferries.

Source: Ship & Bunker