T-105 Edward Carney, Business Development Manager ,
ABB Marine
Benefits with Energy Storage in LNG operated Ice
Benefits with Energy
Storage in LNG operated
Ice Breaker
Benefits with Energy Storage in LNG operated Ice Breaker
Content
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© ABB Group
April 20, 2015 | Slide 3
General
Why Energy Storage in Marine Industry
Energy Storage technology used in Marine Industry
Case: Benefits with Energy Storage in LNG operated Ice
Breaker
Summary
Why Energy Storage in Marine Industry
Spinning reserve
Energy Storage system is connected and running, but not charging or discharging
energy into the system. On loss of generating capacity it steps in to take the load for
a predefined period of time.
Peak shaving
Energy Storage system absorbs load variations in the network so that
engines only see the average load.
Enhanced Dynamic Performance
Energy Storage system absorbs sudden load changes and then ramps the
change over on running engines.
Strategic Loading
Energy Storage system interacts with the power system to optimize engine
fuel efficiency.
Zero Emission Operation
Energy Storage system powers the system so that engines can be turned off.
This enables things like zero-emisisons in harbor.
UPS
© ABB Group
April 20, 2015 | Slide 4
Enhanced Ride Through
Same as spinning reserve, but on local level in a sub-system like a hotel
network or a thruster.
Energy versus power
Things to consider
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Industrial batteries have 3 vital attributes:
 Energy Density
 Power Density
 Number of Cycles (charges and discharges)
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Li-Ion batteries have 16 times more energy content
than a Lead Acid battery, and you get 10 times more
power (W/kg) out
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Different type of chemistry is best in different type of
applications
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© ABB Group
April 20, 2015 | Slide 5
LI-NCA; Lithium-nickel-cobalt-aluminium
LI-NMC; Lithium-nickel-manganese-cobalt  energy and power
LI-LTO; Lithium Titanate  power
LI-LFP; Lithium-iron-phosphate  energy
Life cycle of a battery
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© ABB Group
April 20, 2015 | Slide 6
Cycle life is highly dependent on the Depth of Discharge,
DoD
Super Capacitors
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© ABB Group
April 20, 2015 | Slide 7
Draft, not ready
Benefits with Energy Storage in
LNG operated Ice Breaker
Operational scenarios
Summary
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© ABB Group
April 20, 2015 | Slide 9
Response of main engines
Torque capacity of propulsion
Power-up ramps of propulsion
Operation hours diesel/gas
Abstract
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© ABB Group
April 20, 2015 | Slide 10
The ship major onboard electrical load varies due to the
variation of thickness and hardness of ice.
Engines will not always work in high efficiency area, and in
a worst case scenario, the ship could be stuck during ice
breaking due to the slow response of the engines
Adding battery and super capacitor to balance the load and
operate the engines within the high efficiency area is the
goal.
In icebreaker the main purpose of connecting ES into
electrical propulsion system is to improve the dynamic
behavior of power plant.
Energy storage
Technical arrangements
4450kWe
DC/DC converter based ESS solution
Simplified power system model of the power plant and load
© ABB Group
April 20, 2015 | Slide 11
6680kWe
6680kWe
4450kWe
Expected benefits using Energy Storage
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© ABB Group
April 20, 2015 | Slide 12
Full usage of gas mode, even in fast load changes
Same dynamic performance as experienced with diesel
No risk for slow recovery of power plant after propeller
stucked to ice
Typical operational profile for an Ice Breaker
Example measurements from Ice Breaker. Diesel
response 20s from 0-100% load
© ABB Group
April 20, 2015 | Slide 13
Typical engine performance by engine manufacturer
DRAFT, NOT READY
As an example for Wärtsilä DF engine following data could
be valid :
As an example for Wärtsilä DF engine following data could
be valid :
© ABB Group
April 20, 2015 | Slide 14
DRAFT, NOT READY
© ABB Group
April 20, 2015 | Slide 15
Operating in gas mode with Energy Storage
Optimized gas engine performance
© ABB Group
April 20, 2015 | Slide 16
Results
© ABB Group
April 20, 2015 | Slide 17
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Operational
 It is assumed that there is 150 working days for every year, 24
hours for every working day and 3 load cycles for every 2
hours. Between every two load cycles, 20 minutes are
required for recharging the energy storage system.
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Technical
 For Energy Storage, the following components were chosen:
 Battery, size 822kWh, Li-Ion
 Super Capacitor, size 68kWh
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Commercial
 Payback time 4,4 years
Where does Energy Storage make sense?
Summary
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© ABB Group
April 20, 2015 | Slide 18
Variable Load
Fast dynamic response
Fast recharging
High Power application (lots of power in a short
period of time)
High Energy density is required (long run-time)
Safety is critical