Meenadreen Windfarm, Ireland

Project Name

Meenadreen Windfarm, Ireland


Energia Renewables

Main Contractor:

Kirby (Substation)


Meenadreen Windfarm Extension


Donegal, Ireland




Power and Renewables


HV/MV Services


Kirby was awarded civil and electrical balance of plant (BoP)/ gridline connection contract for the Meenadreen Windfarm electrical infrastructure including (Clogher 110kV substation, Ireland’s first contestable GIS turnkey station), Mulreavy 110kV AIS tail-fed station and Mulreavy 110/33kV 120 MVA IPP substation.

Contestable Works:

• Clogher 110kV indoor GIS station equipped with 8 bays of Siemens GIS 8DN8 switchgear complete with provision for future expansion of up to an additional 4 Bays and associated control and protection
• Mulreavy 110kV tail-fed AIS substation
• Diversion of 2 no. existing 110kV OHL circuits via 4 number end mast structures and 4 number 110kV 1600m² Cu underground power gridline circuits
• 8km of underground 110kV gridline cable between Clogher and Mulreavy stations
• Turnkey design and installation of the works to EirGrid Functional Specifications

IPP Works:

• Mulreavy IPP 110/33kV sub-station including, 120MVA power transformer, 10 Bay 33kV switchboard and associated control and protection systems
• Extensive 33kV Windfarm power and fiber optic cable system


Kirby scope of works included turnkey design and build for the engineering, procurement, construction, pre-commissioning and commissioning (IPP works only) of the contestable/grid connection electrical and civil works listed below:

• Primary Equipment Transmission Connection
• Primary Equipment Distribution Connection
• Earthing & Bonding
• Control & Protection System
• MV Cable Connection System
• Fibre Network
• Transmission Underground Cables
• Distribution Underground Cables
• DC Battery Systems
• Generator
• General & Emergency Lighting
• General Service Power
• Mechanical Plant Service Power
• Fire Detection & Alarm
• Access Control, Intruder & CCTV
• Lightning Protection
• Approximately 27km of 110kV Underground Cable
• Approximately 178km of 33kV Power Fibre Optic Cable

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