"With the projected growth to supply the clean energy from 103GW to 268GW by 2050, the UK/EU government anticipates a market for deep water floating wind generation. From 2017-2018, TRL3 was reached when the University of Strathclyde successfully confirmed numerical analysis of the system. This project concerns the validation of TRL4 of the floating wind system by performing tank tests at the University of Edinburgh's FloWave tank facility. The system has been modelled with a 10MW turbine in northern North Sea conditions and, not only does it provide excellent stability for the turbine in operational conditions, it still provides stability for the turbine with the highest tensioned tether failed in the worst operational and storm conditions. Its novel design minimises mooring loads via a number of features. Tether tensions are thereby minimised reducing their cost, further reducing the amount of steel required in the buoy and the size of the anchor. The novel design of the central column damps the system, reduces tether peak tensions and tension fluctuations with an associated improvement in their fatigue life. Previous work has concluded that _""The flooded central column can lead to significant reductions in both surge and heave motions compared with the non-flooded central column. This feature further reduced the fluctuations in the tethers' tension and improved the stability performance- University of Strathclyde""_ The column is in fact an oscillating water column with the potential for wave energy to beharvested via a suitable wave energy converter. The design of the damped foundation reduces fatigue in the turbine thus reducing Operational Expenditure (OPEX). A safe, stable and efficient installation method has been devised. The proprietary modular gravity anchor is proven technology. It is easy to install. No heavy lift vessel is required and there are no expensive, acoustically polluting, piling operations. Its small footprint ensures that the environmental impact on the seabed is minimal, the anchor is placed on the seabed embedding under its self-weight. There are no drag embedment anchors or catenary anchor legs to disturb the seabed. Disruption to other stakeholders such as shipping and fishermen is reduced by virtue of the vertical tethers. The combination of all these factors ensure a safe, easy to install, reliable foundation for floating wind. It provides the opportunity for combined wind and wave power generation and ensures the lowest LCOE, less than £95 /MWh - this in northern North Sea harsh environmental conditions."