The PLOCAN Marine Test Site is located on the East coast of Gran Canaria Island (Spain,www.plocan.eu). The Canary Islands are located in the Atlantic Ocean, south-west of Spain and Northwest of Africa. The marine test site includes an area of about 23 km 2 with a wide range of water depth from shoreline to 600 m. This Marine Test Site is available to projects focused on testing and demonstrating of all kinds of marine devices but mainly marine renewable energy converters. The final testing decision would be conditioned to the appropriateness, opportunity and availability of the facilities. The electrical and communication infrastructure is composed of two medium voltage cables (13.2kV) with a capacity of 5MW, each one, within the range of ±1% of 50Hz. The infrastructure will be mostly underwater, comprising hybrid cabling, with copper cables for the transmission of electrical power and fibre optics for data transmission, including a short terrestrial section to connect to the electrical substation on land. The onshore infrastructure will go from the manhole up to the electrical substation (66kV), where the electricity is raised up for its deliver to the national transmission grid. The onshore infrastructure will be composed by an underground medium voltage cable with a capacity of 15MW, by a power transformer station (13.2kV to 66kV) and all electrical protections required. This part will only be available after the Summer of 2017.