The activities of WECANet aim to reduce costs and risks of wave energy technologies, and to contribute to the advancement of the sector by dealing with: WEC survivability addressing structural loads, mooring and extreme loading of individual WECs and fully-integrated systems; WEC design optimization by developing common protocols, standards and guidelines of best practices for WECs and WEC arrays; electrical aspects such as control, grid integration, transmission to shore with a focus on stability of electricity production; installation, operation, cabling, WEC interconnections and maintenance of WEC arrays; and feasibility for co-location of wave and wind farms. WG3 aims at a better understanding of the techno-economic aspects of wave energy, which is a key objective of WECANet.