Battery Energy Storage for Congestion Relief
Relieving stress on transmission bottlenecks
Choosing the right solution
A battery energy storage system (BESS) from ABB provides
system operators and planners with a new alternative for
solving grid congestion. Rather than being limited to making
upgrades to the transmission and distribution (T&D) system,
grid operators now have the choice to defer such investments
and planning and may even be able to avoid some upgrades
altogether.
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Supply power
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On the other hand, system operators can opt to wait for
technological advances or cost reductions, but would be left
with frequent bottlenecks and mounting costs as the grid
grows more and more congested.
By using a battery energy storage system from ABB to relieve
grid congestion, system operators can quickly achieve several
key benefits. Aside from significant savings from avoiding curtailment, system operators can also provide the system with
extra reserves and primary regulation. Additionally, they will
have the option to defer major T&D investments.
Expected
Benefits
Primary regulation
As these nodes become more constrained and congested,
the resulting challenges will continue to grow. For example,
more and more renewable energy will need to be curtailed,
which will drive up costs for the system operator. Additionally,
these bottlenecks reduce the effectiveness of installed wind
and solar generation, which is essential for reaching environmental goals.
Scheduled Generation
Reserve
The addition of intermittent renewable resources amplifies
these challenges and requires greater flexibility than these
circuits were ever designed to provide. Grids that were designed for simple distribution are now being asked to transmit
unpredictable renewable generation at their full capacity.
Max. capacity at node
Absorb power
Actual Generation
Avoided costs
Pushing grids to the limit
Growing energy needs have spurred rapid development of
generation capacity in many grids, including numerous installations of renewable wind and solar power. In some cases this
growth is becoming both problematic and costly for system
operators as output begins to reach the power limitations at
critical nodes.
Max. capacity at node
Energy in BESS
Power limitations in the transmission
system often lead to bottlenecks that
put heavy stress on substations and
power lines. When combined with the
unpredictability of wind and solar power,
this can have other costly consequences
such as the need to curtail scheduled
generation. A battery energy storage
system from ABB can provide such
grids with much needed congestion
relief, which will allow the system
operator to see several key benefits
such as increasing reserves and
avoiding curtailment of renewables.
Avoided curtailment and
replacement generation
Expected Benefits of a BESS for Congestion Relief
Other benefits are also achieved by the local utility such as
the reduction of peak power demands on its congested distribution system. Additionally, in the event of an interruption, the
battery energy storage system can provide backup power to
the depot’s gas compressors so that LIB can keep their buses
running.
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Document ID
Energy storage achieves significant cost savings
An ABB battery energy storage power conversion system
was installed at the Long Island Bus Company (LIB) refueling
depot in Garden City, New York. This 1.2MW, 7.2MWh system
uses advanced sodium sulfur batteries and allows the LIB to
avoid expensive day-time peak demand rates by shifting peak
demand to night time when rates are lower. The result is significant cost savings on both energy and labor costs.
Energy storage achieves significant cost savings
An ABB battery energy storage power conversion system
was installed at the Long Island Bus Company (LIB)
refueling depot in Garden City, New York. This 1.2MW,
7.2MWh system uses advanced sodium sulfur batteries
and allows the LIB to avoid expensive daytime peak
demand rates by shifting peak demand to nighttime when
rates are lower. The result is significant cost savings on
both energy and labor costs.
Other benefits are also achieved by the local utility such
as the reduction of peak power demands on its congested
distribution system.
Additionally, in the event of an
interruption, the battery energy storage system can
provide backup power to the depot’s gas compressors so
that LIB can keep their busses running.
Battery energy storage facility at Long Island Bus depot
With a 125 year heritage of technology and innovation and
a presence in over 100 countries, ABB continues to shape
the grid of the future, delivering power and productivity for a
better world.
ABB Mach 2 control system
Additionally, ABB is an industry leader with the individual core
ABB Mach 2 control system
technologies of energy storage like converters and control
systems ranging from tens of kilowatts to hundreds of meAdditionally,
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control systems ranging from tens of kilowatts to hundreds
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This expertise will be essential for
managing bottlenecks in the grid and maximizing the
additional benefits.
Battery energy storage facility at Long Island Bus depot
With a 125 year heritage of technology and innovation and a
presence in over 100 countries, ABB continues to shape the
For
more
information
contact:
grid
of the
future, please
delivering
power and productivity for a
better
ABB
Ltdworld.
P.O Box 8131
CH-8050
Zurich,
Switzerland
For more
information
please contact:
Phone:
+41
(0)43
317 71 11
ABB Ltd
Fax:
+41 8131
(0)43 317 79 58
P.O Box
CH-8050 Zurich
http://www.abb.com/smartgrids
Switzerland
Tel: +41 (0)43 317 71 11
Fax: +41 (0)43 317 79 58
More product information available at:
http://www.abb.com/smartgrids
Energy storage achieves significant cost savings