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2005-11-24 Pål Otto Eide, New Energy Hydro Oil & Energy Utsira wind-hydrogen system – lessons learned
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Date: 2005-11-24 Page: 2 Supplying an island with renewable energy
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Date: 2005-11-24 Page: 3 20 km off the southwest coast of Norway 6.2 km 2, 235 inhabitants Now: 22 kV, 1 MW sea cable - historically: diesel engine Ambition to exploit wind resources and become self-sufficient with renewable energy Utsira – the island
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Date: 2005-11-24 Page: 4 Main focus – demonstration period Ensuring that the installed components in the autonomous system function well together Deliver power with expected quality and reliability to customers Cost reductions, technical/operational simplifications and optimizations Commercialization of products
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Date: 2005-11-24 Page: 5 Utsira – How it works
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Date: 2005-11-24 Page: 6 Main components Wind turbine H 2 storage Fuel cell H 2 engine Transformer Control & regulating system Electrolyser & compressor Wind turbine600 kW Hydrogen engine55 kW Fuel cell10 kW Electrolyser10 Nm 3 /h, 48 kW Compressor5,5 kW Hydrogen storage capacity2400 Nm 3, 200 bar Flywheel5 kWh Battery35 kWh Master Synchronous Machine100 kVA
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Date: 2005-11-24 Page: 10 Utsira - operational experience Norm: BS EN 50160 Frequency ± 2% (49-51 Hz) Voltage ± 10% (207-253 V) Power quality
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Date: 2005-11-24 Page: 11 Power kW Time ~ 1 hr. (Dec 1st 2004) Customers demand Wind power H 2 power starts Utsira – operational experience Hydrogen to support declining wind power Demand > supply Flywheel cover power deficit
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Date: 2005-11-24 Page: 12 Utsira – Low wind mode Wind power produced
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Date: 2005-11-24 Page: 13 Utsira – Low wind mode Consumption excess of production in longer periods
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Date: 2005-11-24 Page: 14 Utsira – Low wind mode Hydrogen genset supplementing the wind turbine
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Date: 2005-11-24 Page: 15 Utsira – High wind mode H2-production for storage
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Date: 2005-11-24 Page: 16 Utsira – main achievements More than 6 months in Stand Alone mode Availability – 90% Power quality – very good Customers satisfied – no complaints No accidents Many visitors Contribution to local activity Good media coverage, several publications, several presentations in conferences and at fairs
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Date: 2005-11-24 Page: 17 Key lessons learned From planning, building and operation Have a well defined design basis and operational philosophy – focusing on: - Signal quality - Remote operation - Interfaces - Climate Select an appropriate location R&D project – not plug and play Focus on SHE
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