Local Energy Scotland Local Energy Challenge Fund The Conversion of Curtailed Energy on Eday to Hydrogen Final Report Title Final Report Dissemination level Confidential Written By Dr Kris Hyde (ITM Power) 13/2/14 Approved by Dr Rachel Smith (ITM Power) 15/2/14 Stuart Baird (EMEC) 15/2/14 Ian Garman (CES) 15/2/14 1/44 Executive Summary The European Marine Energy Centre has secured funding to purchase an electrolyser to convert electricity they are unable to export to the grid into hydrogen. This project has investigated the connection of the local community owned wind turbine to this electrolyser and has considered a range of hydrogen applications to establish which would be the most suitable for the LECF Phase 2 project. The best application was using the hydrogen in a fuel cell which provided power to Kirkwall harbour and the three ferries which berth there overnight. This fuel cell will be configured as a training platform for those operating and maintaining similar equipment on ships. This will overcome one of the main regulatory hurdles preventing the implementation of fuel cells in marine vessels. This system has been modelled in detail based on half hourly wind and tidal output, with the optimised parameters being: Eday static store size: 450kg Fuel cell rated output: 80kW Harbour Stationary Store: 100kg Minimum threshold for returning to Eday 45kg The result of this being: ROC and FIT income to the turbine operators of £165k pa The difference between the electricity saved by the harbour and the hydrogen transportation costs being £16.2k pa A net saving of 202 t CO2 pa These results suggest that the project should be taken forward for Phase 2 funding. 2/44 Contents Executive Summary ................................................................................................................................. 2 1. Background ..................................................................................................................................... 6 2. The Project ...................................................................................................................................... 7 3. Hydrogen Applications .................................................................................................................... 8 3.1. Hydrogen Refuelling Station and Hydrogen Vehicles on Eday ............................................... 8 3.1.1. Proposal: ......................................................................................................................... 8 3.1.2. Benefit to the Community: ............................................................................................. 8 3.1.3. Technical Risk .................................................................................................................. 8 3.1.4. Scale of Hydrogen Consumption: .................................................................................... 8 3.1.5. Cost ................................................................................................................................. 8 3.1.6. Timescale ........................................................................................................................ 9 3.1.7. Consequence of Failures ................................................................................................. 9 3.1.8. Simplified Carbon Reduction .......................................................................................... 9 3.1.9. Conclusion ....................................................................................................................... 9 3.2. Hydrogen Buses in Kirkwall ..................................................................................................... 9 3.2.1. Proposal: ......................................................................................................................... 9 3.2.2. Benefit to the Community: ............................................................................................. 9 3.2.3. Technical Risk .................................................................................................................. 9 3.2.4. Scale of Hydrogen Consumption: .................................................................................... 9 3.2.5. Cost ................................................................................................................................. 9 3.2.6. Timescale ........................................................................................................................ 9 3.2.1. Consequence of Failures ................................................................................................. 9 3.2.2. Simplified Carbon Reduction ........................................................................................ 10 3.2.3. Conclusion ..................................................................................................................... 10 3.3. Supplying Hydrogen to Flotta Oil Terminal ........................................................................... 10 3.3.1. Proposal: ....................................................................................................................... 10 3.3.2. Benefit to the Community: ........................................................................................... 10 3.3.3. Technical Risk ................................................................................................................ 10 3.3.4. Scale of Hydrogen Consumption ................................................................................... 10 3.3.5. Cost ............................................................................................................................... 10 3.3.6. Timescale ...................................................................................................................... 10 3.3.7. Consequence of Failures ............................................................................................... 10 3.3.8. Simplified Carbon Reduction ........................................................................................ 11 3/44 3.3.9. Conclusion ..................................................................................................................... 11 3.4. The Production of Low Carbon Fertiliser .............................................................................. 11 3.4.1. Proposal: ....................................................................................................................... 11 3.4.2. Benefit to the Community: ........................................................................................... 11 3.4.3. Technical Risk ................................................................................................................ 11 3.4.4. Scale of Hydrogen Consumption ................................................................................... 12 3.4.5. Cost ............................................................................................................................... 12 3.4.6. Timescale ...................................................................................................................... 12 3.4.7. Consequence of Failures ............................................................................................... 12 3.4.8. Simplified Carbon Reduction ........................................................................................ 12 3.4.9. Conclusion ..................................................................................................................... 12 3.5. Powering Kirkwall Harbour and Providing Fuel Cell Marine Training Services ..................... 13 3.5.1. Proposal: ....................................................................................................................... 13 3.5.2. Benefit to the Community: ........................................................................................... 13 3.5.3. Technical Risk ................................................................................................................ 13 3.5.4. Scale of Hydrogen Consumption ................................................................................... 13 3.5.5. Cost ............................................................................................................................... 13 3.5.6. Timescale ...................................................................................................................... 13 3.5.7. Consequence of Failures ............................................................................................... 13 3.5.1. Simplified Carbon Reduction ........................................................................................ 13 3.5.2. Conclusion ..................................................................................................................... 14 4. Details of the Proposed Project .................................................................................................... 15 4.1. Overview ............................................................................................................................... 15 4.2. EMEC’s Funded Project ......................................................................................................... 15 4.3. Connection of the ERE Wind Turbine ................................................................................... 15 4.4. The Size of the EMEC Stationary Storage .............................................................................