LOW CARBON FERRIES FEASIBILITY STUDY Part 2 Analysis Report to Orkney Islands Council Issued by Aquatera Ltd P732 – April 2016 Funded by: Acknowledgements: (Captain) Willie Mackay This study was completed for: Orkney Islands Council Marine Services Harbour Authority Building Scapa Orkney KW15 1SD Contact: David Hibbert Technical Superintendent, Development & Infrastructure Tel: 01856 873636 Ext 3623 Email:
[email protected] This study was completed by: Aquatera Ltd Old Academy Business Centre Stromness Orkney KW16 3AW Contact: Ian Johnstone Tel: 01856 850 088 Email:
[email protected] Issue record The version number is indicated on the front cover. Version Date Details V1 16 Feb Part 1 draft 2016 V2 04 Apr 2016 Part 2 analysis draft Members of: Executive Summary The scope of the report was to investigate how the current inter-island routes could be serviced by ferries powered from alternative fuels. Within the report: The possible fuel alternatives were to be determined; The routes have been assessed on their applicability to the possible fuels; An understanding was gained on the possible impact upon the local grid; and The details of what changes would be required to the current service were discussed and evaluated, in relation to alternative fuel options. Due to the age of the current vessels operating the routes, retrofitting was not considered as a viable option and any alternatives to the current fleet would be new vessels. The work included the compilation of case studies of vessels deriving power from alternative fuels which includes LNG, CNG, hydrogen, full-electric, liquid nitrogen, bio- fuels, compressed air, ammonia, nuclear, wind and wave.