Temporary power technology provider Aggreko has provided 19 MW of temporary power to enable the Lisheen Mine in central Ireland to operate during the installation of a nearby wind farm.
Aggreko provided 24 1250 kVA generators, linked to five 6.3 MVA transformers, which were connected to the mine's switchgear. Contractors used a half-hour maintenance window to switch the mains power and start the temporary power provision of 9 MW needed for the pumps, increasing power until the 19 MW capacity had been reached.
The Lisheen Mine in County Tipperary, owned by Anglo American, is one of the largest producers of zinc concentrates in Europe, extracting around 1.5 million tonnes of zinc and lead ore per annum. The mining operation runs on two shifts a day, 24 hours a day, seven days a week.
Before the nearby wind farm could be connected to the national grid, an extension to the Lisheen 110 kV substation had to be installed, with inevitable disruption to the mine's power supply. The commissioning of the new transformer on the site took one week and Aggreko was called in to provide 19 MW of temporary power to keep the mine operational during that time.