Neart na Gaoithe Substation Platform

Published 5th September 2023

GE Renewable Energy is developing the onshore and offshore substations required for the Neart na Gaoithe (NNG) wind project in Scotland. Located approximately 20km off the Fife Coast in the Firth of Forth, the NNG Windfarm will include 54 wind turbines generating a total 450MW of power.

Turbine output is exported via inter-array cables connecting two offshore substations, with the electricity from the offshore substations subsequently transmitted through two 37km-long export cables which make landfall at Thorntonloch Beach in East Lothian. An onshore cable then runs underground for approximately 12km to transmit the electricity to an onshore substation in the Lammermuir Hills adjacent to Crystal Rig Windfarm.

Our team was appointed as civil and geotechnical engineers responsible for the design of the civils enabling works. This included reviewing the existing ground investigation information and providing the specification and supervision of additional ground investigation to confirm ground conditions at discrete locations. In addition, our specialists delivered the design and specification of earthworks for the scheme, including the specification for those associated with the enabling works. Our role also included construction stage validation, seeing our team conduct periodic site visits to witness key stages of the earthwork construction, whilst we also reviewed test results to confirm the compliance of the constructed works against the specification requirements.

Client: GE Renewable Energy