The power was back on again at around 10pm.
It's understood that one event affected by the outage was the St Collen's harvest supper at the Royal Hotel.
Luckily, however, the power didn't go off until after the main course had been served.
Llangollen suffered a power cut at around 8.45 this evening.
ScottishPower emergency line says a large number of properties in the LL20 area are affected and that teams have been despatched to deal with promlem caused by a fault in an overhead power line.