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 on the Scottish island of Islay. The capacity was later downgraded to 250 kW. Islay LIMPET (Land Installed Marine Power Energy Transmitter) was developed by Wavegen in cooperation with Queen's University Belfast.