lough nahanagan hydro electric lake

2023 ireland europe june travel lough nahanagan lake eatermonstercorrie turlough hill ireland#39aph39#s electricity #39aph39#storage#39aph39# hydro-plant periods low demand off-peak current used pump water nathanagan corrie visible foot artificial reservoir top high fed back turbines inside mountain produce hydro-electric power national grid watermonster hydro electric