The FloWave TT ocean energy research facility is designed to test physical scale models of marine renewable energy devices, in a combined wave and current environment. The facility is located at The University of Edinburgh, King's Buildings campus. It comprises a 25-metre (82 ft) diameter circular tank, with 168 active-absorbing wave makers around the circumference, and 28 pumps arranged beneath the raisable floor. These allow the creation of multi-directional random waves with current in any direction across the 15-metre (49 ft) diameter, 2-metre (6.6 ft) deep test area. The facility is optimised for approximately 1/10th to 1/40th scale model tests, with scale waves approximately 14-metre (46 ft) high and with a current of 7 knots.