Massive marine energy centre opens in Edinburgh
5 June 2014 Last updated at 17:48 BST
A new multi-million pound research facility for marine energy devices has opened at Edinburgh University.
FloWave will give wave and tidal energy companies the opportunity to trial their designs before heading out to sea.
The 2m-deep pool can mimic waves and currents around the UK coast and further offshore.
Aileen Clarke went along to see just how close to sea conditions they can go.