The electricity grid recorded spikes in demand during major sporting events in July, including last weekend's All-ireland football final between Galway and Armagh.
EirGrid says the All Ireland football and hurling finals both saw increases of around 80 megawatts.
Usage rose most noticeably during half-time and stoppages in play as appliances like the kettle are switched on.
A further spike of around 80 megawatts was seen shortly after full-time in the Euros final between Spain and England.
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