Ocean Power Delivery Ltd. (Edinburgh, Scotland) has recently completed a revolutionary novel offshore wave energy converter called Pelamis. Building on technology developed for the offshore industry, the Pelamis provides similar output to a modern wind turbine. The first full-scale pre-production prototype is currently being built and will be tested at the European Marine Energy Centre in Orkney later this year.
The photos below shows a prototype of the Pelamis wave generator going out on trials. The machine is the world’s first commercial-scale floating wave energy converter and Carmanah is proud to announce that its Model 601 solar-powered LED marine lights were chosen for installation on this important new technology.
HOW THE PELAMIS WORKS
The Pelamis is a semi-submerged, articulated structure composed of cylindrical sections linked by hinged joints. The wave-induced motion of these joints is resisted by hydraulic rams, which pump high-pressure oil through hydraulic motors via smoothing accumulators. The hydraulic motors drive electrical generators to produce electricity. Power from all the joints is fed down a single umbilical cable to a junction on the sea bed. Several devices can be connected together and linked to shore through a single seabed cable.
It is anticipated that future “wave farm” projects would consist of an arrangement of interlinked multi-machines connected to shore by a single subsea cable. A typical 30MW installation would occupy a square kilometre of ocean and provide sufficient electricity for 20,000 homes. Twenty of these farms could power a city such as Edinburgh.
Hydrosphere UK Ltd.
Units C & D, West End Centre
Colthouse Lane, Upper Froyle
Hampshire, GU34 4JR
Tel: 07919 183610, Fax: 01420 520373
Source for further information:
Official web site of Ocean power Delivery Limited.