Islay LIMPET

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Islay LIMPET
The LIMPET installation
Location of Islay LIMPET
Location	Islay, Scotland
Coordinates	55°41′25.56″N 6°31′20.12″W / 55.6904333°N 6.5222556°W / 55.6904333; -6.5222556Coordinates: 55°41′25.56″N 6°31′20.12″W / 55.6904333°N 6.5222556°W / 55.6904333; -6.5222556
Status	Operational
Commission date	2000 (2000)
Developer(s)	Wavegen in cooperation with Queen's University Belfast

Power station
Primary fuel	Wave

Power generation
Installed capacity	0.25 MW^[1]

Islay LIMPET is the world’s first commercial wave power device connected to the United Kingdom's National Grid.

Following the construction of a 75 kW prototype in 1991, a 500 kW unit was built in 2000, and is located at Claddach Farm on the Rhinns of Islay^[2] on the Scottish island of Islay. The capacity was later downgraded to 250 kW.^[1] Islay LIMPET (Land Installed Marine Power Energy Transmitter) was developed by Wavegen in cooperation with Queen's University Belfast.

Technology

Close up view of the seaward face of LIMPET

Islay LIMPET is a shoreline device uses an Oscillating Water Column to drive air in and out of a pressure chamber through a Wells turbine.^[1]^[3]^[4] The chamber of the LIMPET is an inclined concrete tube with its opening below the water level. As external wave action causes the water level in the chamber to oscillate, the variation in water level alternately compresses and decompresses the trapped air above, causing air to flow backwards and forwards through a pair of contra-rotating turbines.

Footnotes

↑ 1.0 1.1 1.2 http://www.waterpowermagazine.com/story.asp?storyCode=2048366
↑ Tom Heath. "The Construction, Commissioning and Operation of the LIMPET Wave Energy Collector" (PDF). Wavegen. Retrieved 2009-08-04.
↑ "How it works: Wave power station". BBC News. 2000-11-20.
↑ Seenan, Gerard (2000-09-14). "Islay pioneers harnessing of wave power". The Guardian (London).

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