wave energy

Corpower installs Wave Energy Converter at EMEC

Corpower has installed a half-scale prototype of its C3 wave-energy device at the European Marine Energy Centre (EMEC) off Orkney.

The Swedish developer’s 25kW device was deployed at EMEC’s Scapa Flow nursery site by Stromness-based contractor Green Marine, and testing will take place until the end of May.

The C3 deployed on an EMEC provided foundation is the forerunner of a full-scale 8m-diameter device with a rated capacity up to 300kW. The gravity based foundation module includes a mooring system with a tidal adjustment function and a tensioning capacity of up to 60 tonnes.

A wave farm concept is based on combining hundreds to thousands of units in arrays, with a common grid export cable that connects the offshore wave farm to existing on-land grid. With a WEC rating of 250kW per unit in a typical Atlantic coast climate this enables 10-250MW wave farms with 40-1000 units. The concept allows mass production to drive down cost per unit and a maintenance scheme based on replacement of entire units at sea. This avoids performing service activities in the harsh offshore environment and offers improvements in farm up-time and reduction of O&M cost.

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