ComEd Expanding High Voltage Substation in Wilton Center to Enable Largest Cluster of Wind and Solar Projects in Illinois and PJM Region
12 Dezembro 2023 - 3:27PM
Business Wire
Output from wind and solar farms to create up
to 2,450 MW of clean energy
ComEd today announced an expansion of its 765,000-volt (765 kV)
Wilton Center substation, a critical infrastructure investment that
will enable the largest cluster of utility-scale onshore wind and
solar projects interconnected to the Illinois electric grid to date
and in the PJM energy market. The substation expansion is expected
to be complete and proposed wind farms are expected to be
operational in late 2026.
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“Policymakers, stakeholders and customers want a cleaner energy
future, and we’re powering the grid modernization that will make
this future a reality,” said Gil Quiniones, CEO, ComEd.
“Investments like the expansion of the Wilton Center substation
will ensure the successful interconnection of new renewable energy
generation to the grid so that it can be delivered through our
transmission system to communities across Illinois.”
The Wilton Center substation, constructed in 1968 and located
near Joliet, Ill., supports ComEd’s highest voltage transmission
lines of 765 kV, which are used for long-distance power
transmission as they minimize the amount of power lost as
electricity flows from one location to the next. The Wilton Center
substation yard is approximately 1 million square feet and will
expand by about 50 percent when construction is complete. Design
engineering began in September, and work will include installation
of new circuit breakers, transformers, relay switches, network data
and control systems.
“The Wilton Center substation has been providing energy to our
state and many others for over half a century, and with this
expansion it will expand that capacity with fossil fuel-free power
that will propel our grid into the future,” said Governor JB
Pritzker. “The wind and solar farms supported by this substation
expansion are another step in Illinois’ clean energy journey, a
journey I’ve been grateful to undertake with ComEd.”
When complete, the substation expansion will support five wind
farms and two solar farms with the capacity to produce a total of
up to 2,450 MW of renewable energy for the ComEd transmission
system and the PJM energy market, which includes all or parts of 13
states and the District of Columbia. The wind and solar farms to be
supported by the expanded Wilton Center substation include:
- Heritage Prairie, a wind farm with up to 850 MW of
generation capacity in western Kankakee County and northeastern
Livingston County, developed by Pattern Energy and ConnectGen,
which will be the largest wind interconnection in northern Illinois
and largest onshore wind project in the PJM territory. The project
also includes 300 MW of solar generation.
- Two wind farms developed by Panther Grove Wind Energy,
each producing 400 MW of wind energy, one each in Livingston County
and Woodford County.
- Lower Crossing Wind Farm in Kankakee County, which will produce
200 MW of wind energy and is being developed by owner Cordelio
Power.
- Osagrove Flats Wind Farm in LaSalle County, a 150 MW
project that will also include 150 MW of solar. It is being
developed by Avangrid, Inc., whose Illinois projects include the
100 MW Midland Windfarm in Henry County, which was connected
in November to the ComEd transmission system.
The largest wind farm currently operating in Illinois is the 396
MW Twin Groves Wind Farm in McLean County. ComEd has 13
active wind projects underway in either construction or study
phase, representing 3,120 MW of potential wind generation. Over the
past 20 years, ComEd has interconnected more than 4,500 MW of wind
generation to its transmission system. As of November 1, 2023,
Distributed Energy Resources on the ComEd system, including
residential, commercial, and industrial rooftop solar and community
solar, increased by 148MW, representing about a 33% annualized
growth rate.
###
ComEd is a unit of Chicago-based Exelon Corporation (NASDAQ:
EXC), a Fortune 250 energy company with approximately 10 million
electricity and natural gas customers – the largest number of
customers in the U.S. ComEd powers the lives of more than 4 million
customers across northern Illinois, or 70 percent of the state’s
population. For more information visit ComEd.com and connect with
the company on Facebook, X, Instagram and YouTube.
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ComEd Media Relations 312-394-3500
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