Cecilia Andersson, Environmental Controller Riga September 20, 2012

14 Pages·2012·1.43 MB·English

Shore side electricity at
Stena Line Scandinavia
Cecilia Andersson, Environmental Controller
Riga September 20, 2012
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Ferry operations in
Stena Line Scandinavia
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Shore side electricity
C old ironing
S hore-based power supply
Onshore power supply
Electricity from land instead
of burning bunker fuel to
keep generators running.
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Stena Lines vessels in Scandinavia
Day ferry Ropax
HSS
Seven vessels can get electricity from shore side.
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Low-voltage system

• 380 volts
• >10 cables
• Time-wasting to connect
• Poor ergonomics
• High operating cost

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High-voltage shore connection
(HVSC)

• 10500 volts
• One cable
• 5-15 minutes to connect
• High demands on electrical
safety
• Transformer on board
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STENA JUTLANDICA
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Important during planning phase
• Cooperation is necessary!
• Calculate on the energy balance to obtain right
dimension of the system.
• Various load over the year, most power needed during
the summer time for Stena ferries.
• Vessels often have 60 Hz & shore net 50 Hz, frequency
converter needed.
• Transformer is needed onboard to change the voltage.
• Decide if the cable shall be onbord or ashore.
• Involve staff onboard to make sure that the connection
is ergonomic feasible.

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Requirements before operation starts
Stena Line used IEC standard
IEC/PAS 60092-510:2009, Electrical installations in ships - High Voltage Shore Connection Systems
(HVSC-Systems).

Approval of elctrical installations
• Classification Society (ex Lloyds) approves the technical equipment installed on the ferry.
• Flag State (ex Swedish Transport Agency) approve that the technical equipment is used in a safe way.
• National Electrical Safety Board approve the technical equipment installed ashore.

Stena Lines responsibility
• Risk assessment, safety instructions, labelling.
• One day training course about high-voltage by supplier.
• Three days training course about high-voltage for electrical engineers arranged by Chalmers.
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