SSEN Transmission has marked a key milestone in its ongoing project to connect Shetland's local electricity network to the national grid with the arrival of two large transformers at the Gremista Grid Supply Point (GSP).
Each transformer weighs approximately 59 tonnes and plays a crucial role in the ongoing Gremista electricity connection project. Once fully installed, they will enable the site to manage current and future electricity demand, as well as improve the network's reliability and efficiency.
The two transformers arrived at Lerwick Harbour's Greenhead Base before being loaded onto a multi-axle vehicle by specialist haulier RRS. From there, they were transported to the GSP, with their journey taking place at reduced speeds due to the size of the units and to ensure their safe delivery.
“The arrival of these transformers is a significant step forwards in our new Gremista Grid Supply Point and wider Gremista Connection project, which will strengthen the energy infrastructure here in Shetland,” said Mark Kelly, Deputy Project Director for SSEN Transmission. “Once this link is complete, it will form the crucial land connection between the Shetland HVDC Link to the GB mainland and the local Shetland grid supply point here at Gremista, connecting Shetland to the GB energy system for the first time.”
The project is expected to help ensure a stable electricity supply by enabling the flow of clean power to homes and businesses, especially during times when local generation on Shetland's electricity network cannot meet demand. The Kergord-Gremista connection, which is set to be completed by the end of 2025, will link the Gremista GSP with the Kergord Substation, connecting Shetland to the broader GB energy grid.
Peter Kirk, Managing Director for Energy at Morgan Sindall Infrastructure, a key partner in the project, emphasized the importance of the transformers for Shetland's energy infrastructure. “These transformers will enable local renewable energy to flow to the islands' homes and businesses by connecting people, places, and communities through innovative and responsible infrastructure.”
The Gremista to Kergord connection project involves creating a 22 km link between the two substations, using a mix of overhead lines and underground cabling. The link is a critical component of the Shetland HVDC project, which aims to connect Shetland to the GB energy system for the first time.
SSEN Transmission thanked the local community for their ongoing patience as work continues on the project. They assured that updates will be provided as the work progresses towards completion.
