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Facilities

Electric | Steam | Central
Utilities Complex | Chilled
Water | Water
Electric
Erickson
The
Erickson Station was completed in 1973 and contains a single
generator capable of producing 159 MW of electricity. It was
recently rated one of the most efficient plants of its size
in the United States. Group tours of the Erickson Station
can be arranged by calling 517-702-6300.
Eckert
Located
near downtown Lansing,
Eckert Power Station is the BWL's oldest operating power plant. The 350-megawatt plant's generation units were installed over several years, beginning in the mid-1950s. It includes six electric generating
units ranging from 41 megawatts (MW) capacity to 77 MW.
Belle River
Through
our membership in the Michigan Public Power Agency (MPPA),
the BWL receives 146 MW of electricity from the Belle River
Plant, a coal-fired generator located near St. Clair, Michigan
and built and operated by Detroit Edison Company. The Belle
River Station was completed in 1984.
Steam
Moores Park
The
BWL entered the thermal energy business in 1919 when it bought
the steam distribution and production facilities of the Michigan
Power Company. Through the 1950's, production facilities were
added to keep pace with an expanding service area. Today the
Moore's Park Steam Plant uses low cost coal to generate up
to 660,000 lbs/hr of steam, which is distributed to its customers
through nearly 14 miles of steam line.
Central
Utilities Complex
In
1999, the Board of water & Light signed a Participation
Agreement with Cinergy and US Filter to collectively design
and build a Central Utilities Complex to supply all utilities
for General Motors Corporation's New Lansing Grand River Assembly
Facility. This was the first time in General Motors history,
the manufacturer has relied on an outside vendor to supply
all their utility services.
The Board supplies 13,200 volt electric power
and 275 psi steam to the CUC complex. The complex transforms
the high voltage to 480 volt power for distribution to the
GM Body, Paint, and General Assembly facilities. The steam
is used to power a small non-condensing turbine generator.
The exhaust steam energy supplies a hot water heat system
for building heat as well as supplying "process"
heat.
In the summer, the exhaust steam from the
turbine powers an absorption chiller. The absorption chiller
along with several electric chillers and a thermal storage
tank supply the GM buildings with chilled water for cooling
the facilities. The CUC also supplies all GM's compressed
air requirements.
The Board supplies city water to the CUC,
where it is converted to demineralized water to be used in
the paint process. Waste water from the paint process is returned
to the CUC for processing and disposal. City water is also
supplied directly to the buildings for other process uses.
The CUC supplies cooling tower water to the Body Shop for
cooling the robotic welders.
Energy consumption for the GM complex is monitored
and controlled through the CUC's energy management system.
Chilled
Water System
Fundamentals
of Chilled Water
The present BWL chilled water system can deliver 10,000 tons
of chilled water capacity and can be expanded to a capacity
of 20,000 tons. The chiller plant has five York centrifugal
chillers. Four are steam turbine driven and one is electric
driven. The steam energy is produced at the BWL's Moores Park
Steam Plant and is delivered to the chiller plant via our
steam distribution system.
Water cooling water delivered to the chiller
plant from customers enters the facility at 57 degrees F.
The "primary pump" system forces the 57 degree water
through the chillers, where it exits at 42 degrees. The 42
degree water enters a loop header where it is pumped back
to the inlet of the primary pumps. The "secondary pumps"
draw 42 degree water off the loop header and send it to our
customers via our supply distribution piping system. The customer
heating and cooling systems use the chilled water to cool
the interior of their buildings. As the building is cooled,
the 42 degree water warms to 57 degrees and is again returned
to the chiller plant via the return piping.
Here's how it works. The 57 degree water entering
the chiller causes the refrigerant in the chiller to boil.
This transfers the heat to the refrigerant and causes the
chilled water to exit the chiller at 42 degrees. The hot refrigerant
gas is condensed back to a liquid by forcing the hot gas over
a series of cooling tubes carrying cool cooling tower water.
As the gas condenses, it transfers its heat to the cooling
tower water. This warm cooling tower water is pumped up and
over the cooling tower where the water is again cooled. The
cool water flows by gravity back to the cooling tower pumps.
These pumps force the cooling water back through the chillers
where it is re-warmed and sent back to the cooling tower re-cooling.
The cooling tower is like a giant rain maker.
Water enters the top of the tower and is sprayed over
plastic media. Large fans blow air over the media causing
the water temperature to drop. The warmer air is discharged
into the atmosphere. The entire station can be remotely operated
from the BWL's Moores Park Station.
Chilled Water Distribution
The Board of Water & Light's
chilled water distribution system is made up large supply
piping and return piping, in excess of two feet in diameter,
buried in the ground. Nearly 14,000 feet of this pipe has
been installed to feed customers in the downtown area, supplying
chilled water at a temperature of 42 degrees F. After being
used by the chilled water customers, this water returns to
the BWL's Chiller Plant at a temperature of 57 Degrees where
it begins a new cooling cycle.
Water
Dye Water Conditioning
Plant
The
John Dye Water Conditioning Plant is located on South Cedar
Street, near Lansings downtown.
Named for a former BWL chemist, the plant is capable of conditioning
40 million gallons of water per day. A chemical conditioning
process involving lime and soda ash is used to remove calcium
carbonate from the raw well water, reducing hardness from
about 400 parts per million, to 85-100 ppm.
The Dye Plants architecture reflects the art deco style
prevalent when it was built in 1939. Large murals in the plants
lobby depict the destructive and beneficial forces of water.
Wise Road Water Conditioning Plant
The
Wise Road Plant was built in 1966 and has a production capacity
of 10 million gallons of water per day.
The conditioning process is identical to that used at the
John Dye Plant. Lime and soda ash are mixed with the well
water, creating a chemical reaction that removes approximately
80 percent of the water hardness.
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