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old ferries, some over 40 years ageing infrastructure economic challenges

Port Ellen - Islay. The Issues Facing CMAL. old ferries, some over 40 years ageing infrastructure economic challenges. Owns or operates 24 harbours. Owns 30 ferries – average age 22yrs. MV Jupiter built in 1973. Where CMAL operates - Routes and Ports.

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old ferries, some over 40 years ageing infrastructure economic challenges

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  1. Port Ellen - Islay The Issues Facing CMAL • old ferries, some over 40 years • ageing infrastructure • economic challenges Owns or operates 24 harbours Owns 30 ferries – average age 22yrs MV Jupiter built in 1973

  2. Where CMAL operates - Routes and Ports

  3. Reasons for Considering Hybrid Propulsion

  4. Lead Acid – Lithium Comparison

  5. Modes of Operation ) Generator Shore Supply Hotel Mode 1 - Generator Mode 2 - Generator + Battery Mode 3 - Battery AC Mode 4 - Battery charging Variable Speed Drive DC Battery DC AC Propulsion Motor

  6. Machinery Arrangement Aft Battery Room Fwd Battery Room Prop 2 G1 G3 M2 Converter Battery Bank 2 Battery Bank 1 G2 G4 Main Switchboard Converter M1 Prop 1 Fwd Engine Room Aft Engine Room Aft Prop Room Fwd Prop Room

  7. The Future - Hybrid Ferries • Reasons for Hybrid Propulsion System • Reducing Emissions >20% • Possibly zero emissions in harbour as vessel will be powered by batteries or shore supply while in harbour mode • Energy Savings • Fuel Savings, on existing vessels there are periods of low load running, which can increase SFOC by 5-10% • Reduced Operating Costs • Reduced noise when operating on batteries • Flexible and efficient operation, excellent redundancy • Less Installed Power by optimising machinery selection • The batteries onboard the vessel could be charged overnight from a shore supply, could be a wind turbine or from a source of renewable power (Hydro or Wind Farm).

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