Television and web viewers of the Royal Wedding in Britain caused a noticeable change to electricity demand. There was a unique change in electricity demand at the time of the televising of the event in London, according to EirGrid.
Demand fell as viewers gathered together to watch the wedding and stopped using other electrical appliances. The reduction was in the region of 120 megawatts, equivalent to the electricity demand of 78,000 average homes.
Similar changes have also happened in the past, noticeably at half time during games involving Irish teams such as football World Cup or rugby Grand Slam matches.