Mr. Seán Laffey:

Prior to Uisce Éireann coming into being, data centres used water for cooling purposes, but we stopped that particular policy. We will supply them with water for domestic purposes - canteens, etc. - but we no longer supply them with water for cooling purposes. It was very wasteful of the water. Even if the data centres were not using the water for cooling, say during the winter, they refreshed their tanks every two or three weeks to avoid a risk of legionella. We have stopped that. The problem is the data centres now cool using closed-loop cooling, which is electric so the pressure is on the network there.