Tawnaghmore Power Station is a 104 MW gas/oil fired 'peaker plant' situated south of Killala in County Mayo, Ireland.

[1] The plant comprises two 52 MW gas/oil-fired open cycle unit turbines.

Its principle function is to help maintain the security of electricity supply in Ireland's all-island Single Electricity Market (SEM) by being available to operate on quick response to peaks in national energy demand.

The installation of a second turbine occurred in 2008 and doubled the electrical output capacity to 104 MW.

[3] In addition to the combustion plant itself, the main infrastructure on side includes a water treatment plant, water storage tanks, bunded steel oil storage tanks and bunded transformers.