Kilgallioch Wind Farm, Scotland – Detailed Design & Construction Support

Geotechnical

Location: Stranraer, Scotland

Client: Farrans Construction Ltd.

Status: Complete

Overall Project Value: €420m

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Brief Description

Fehily Timoney and Company Ltd (FT) were employed by Farrans Construction to act as Civil/Structural and Geotechnical designers on the Kilgallioch Wind Farm Project. Kilgallioch Wind Farm is a development by Scottish Power Renewables (SPR), a unit of Iberdrola. The wind farm has an area of approximately 32km2 with 70km of internal tracks and 96 Gamesa turbines. The 239MW wind farm powers in the region of 130,000 homes making it the second largest onshore windfarm in the UK.

The project included the following key elements:

96 No. Gamesa (G90 & G114) turbine bases
70 km of access road
Crane hardstandings for each of the turbine locations
Site Supervision
1.2 million tonnes of site own rock and gravel from 6 on-site quarries
Placement of 45,000m3 of reinforced concrete
400km of High Voltage cabling

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FT Responsibilities

FT’s services covered the detailed geotechnical design of the turbine foundations (providing a number of solutions for each turbine type to optimise construction work, cut and fill, and concrete and steel tonnages), met mast foundation design, drainage, crane hardstandings, bridge design, substation design and access roads.

FT were responsible for the detailed peat management strategy at the site as well as broader earthworks engineering for site-won fill materials.

FT had a continuous site presence for the entirety of the project, providing our client with construction support, as well as technical support. FT was also responsible for the preparation of all civil and structural drawings and specifications.

Project Statistics

96

Developed 96 Gamesa turbine bases

70

Constructed 70km of access road

1.2

Excavated 1.2 million tonnes of site owned rock and gravel