S08_E21_isle_of_eigg.ppt Island Electricity Generation: Isle of Eigg,

Handouts of presentation: Island Electricity Generation: Isle of Eigg, Jaise Kuriakose, CAT, UKIsland Electricity GenerationIsle of EiggJaise KuriakoseCentre for Alternative TechnologyEnergy 21 – ‘Community Energy Transition’ SeminarAugust 16-18, 2008, CAT, Wales, UKIsle of Eigg• 8 km x 6 km 10 miles west coast of scotland• Population 87• 45 residential properties and 5 commercialproperties• The Isle of Eigg Heritage Trust was formed in1997-Island residents, highland council and scottish wildlife trusthttp://www.inforse.org/europe/seminar08_Energy21.htmIsland Electrification Project• Island was relying on age old diesel generators• Eigg Electric was formed as a subsidiary companyunder the trust.• New Island Electrification project operational onFebruary 2008Finance• The total cost of the scheme was £1.6 million.• European Regional Development Fund, Big Lottery,Highlands & Islands Enterprise, HIE Lochaber,Highlands and Islands Community Energy Company,Scottish Community Household RenewablesInitiative, Energy Saving Trust, Highland Council,Isle of Eigg Heritage Trust & The Residents of theIsle of Eigg.• Voluntary effort by the islanders with the help ofScottish Hydro and various contractors.Island Electrification SystemWind turbines• integration of multiple renewable energy sources-Wind, hydro and solar• Each of these sources has been sensitively sitedto cause minimum visual and physical impactupon the island• 11km of buried high voltage cable• Limited the demand with the approval of theresidents; domestic and small business supplieshave been capped at 5kW, and larger businesssupplies at 10kW.4 Nos. of 6 kWProven wind turbines• Electricity charges are collected via pre-paymentcard operated meters.Energy 21 – ‘Community Energy Transition’ – INFORSE-Europe Seminarwith support from EC, DG Environment Civil Society Support & CATAugust 16-18, 2008, CAT, Wales, UKhttp://www.inforse.org/europe/seminar08_Energy21.htm 1

Handouts of presentation: Island Electricity Generation: Isle of Eigg, Jaise Kuriakose, CAT, UKHydro ElectricThe major renewable energy source is a 100kWHydro Electric Generator.This is supported by two smaller Hydro ElectricGenerators of 10kW and 9kW.Independent hydro schemesSolar Photovoltaic• 10 kW PVElectricity DistributionControl RoomTwelve Sunny Island 5kW inverters are usedconnected in four three phase clusters to give atotal output rating of 60kW.A MultiCluster Box communicating invertersand provides contactors for the connection tothe island grid and the back-up generator.Energy 21 – ‘Community Energy Transition’ – INFORSE-Europe Seminarwith support from EC, DG Environment Civil Society Support & CATAugust 16-18, 2008, CAT, Wales, UKhttp://www.inforse.org/europe/seminar08_Energy21.htm 2

Handouts of presentation: Island Electricity Generation: Isle of Eigg, Jaise Kuriakose, CAT, UKControl RoomBatteriesEach cluster is connected to a 48V 2242 Ah (C10)battery bank consisting of 24 batteriesMetering SystemCentre for Alternative Technologywww.cat.org.uktel (+44)1654 705968Jaise KuriakoseEnergy 21 – ‘Community Energy Transition’ – INFORSE-Europe Seminarwith support from EC, DG Environment Civil Society Support & CATAugust 16-18, 2008, CAT, Wales, UKhttp://www.inforse.org/europe/seminar08_Energy21.htm 3