Renewable Energy Division

Through the GMC Utilities Groups divisional structure it is able to offer the Renewable Energy industry a variety of options to support their service requirements.

Renewable Energy Experience:

One of the more high profile projects GMC Utilities Group has played a central role in, is “The East-West Inter-Connector”, a high-voltage direct current submarine and subsoil power cable project, connecting the UK and Irish electricity markets.
The project was developed by national grid operator EirGrid, the East-West Interconnector has a total length of 261 km, of which 186 km is submarine cable and 75 km is subsoil cable. The link connects converter stations at Rush North Beach, County Dublin, Ireland, and Barkby Beach in North Wales. The interconnection uses ±200kV HVDC Light cables with a capacity of 500 MW. It is the first HVDC Light transmission system project, which uses ±200 kV cables. The cables and converter stations are provided by ABB.

Under the European Waste Framework Directive and Landfill Directive Ireland is committed to recycling a large proportion of its waste. A residual fraction, however, or ‘black bin’ waste remains, which is unsuitable for recycling and is currently disposed of to landfill. Waste-to-energy technology provides a sustainable way of managing residual waste and to this end Indaver Ireland has developed such a facility at Duleek, Co. Meath, converting waste into renewable energy as an alternative to fossil fuels. GMC Utilities Group supported this green initiative by bringing power to the facility involving the installation of 5km of 38kv aluminium cabling along National roads and the construction of a 38kv sub-station on the site. The cabling also involved crossing of the M1 Motorway by directional drilling.

GMC Utilities Group was involved in supporting ESBI during the construction stage of Kingsmountain Wind farm in county Sligo. ESB International, under a full turnkey contract with Airtricity, was responsible for the complete scope of works on this wind farm including procurement, engineering construction and commissioning.
In addition to the wind farm itself, the project required the installation of a 19km underground cable connector and construction of a 110/20kV substation.
At the time of construction Kingsmountain was the largest wind farm in Ireland and the first to be connected at 110kV. The wind turbines used at the time were the largest individual wind turbines erected on-shore (Nordex N-80-60m)


Case Studies


East-West Interconnector

Kings Mountain & Indaver