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Dallman Power Station
The Dallman Power Station was built just to the southwest
of the Lakeside
Power Station
in 1968 to answer the increasing electric demand of a
growing city. It contains three coal-fired generating units.
The first Dallman generator placed on line was Dallman 1, with a maximum capacity of 76 MW. It was followed by
Dallman 2, an
76 MW unit in 1972. In 1978, the completion of
Dallman 3, with a maximum capacity of 188 MW, more than doubled the power station's
total generating capacity. These three coal-fired units are
intended to meet customer base load.
In 2008, the three Dallman Power Station generators used 742,243 tons
of coal, 297,389 gallons of oil and 6,717 tons of seed corn
costing $28.37 million to generate 1,427,634 MWH of
electricity. The station's net fuel cost was $19.87 per MWH.
All Dallman Power Station units are designed to burn coal with an
approximate heat content of 10,500 Btu per pound.
Particulate emissions from the three units are controlled by
electrostatic precipitators.
In addition, the three units are equipped with
flue gas desulfurization
systems (scrubbers) to control sulfur dioxide (SO2)
emissions. The scrubber for Dallman Unit 33 was installed in
1980. A second scrubber, serving the two older units, was
put into operation in June 2001 in response to requirements
of the 1990 Clean Air Act Amendments.
The three units have also been equipped with
selective catalytic reduction (SCR)
systems, which reduce nitrogen oxides (NOX)
emissions to levels allowed by both state and federal clean
air requirements. The SCRs, which cost a total of $76
million to install, were placed on line in May 2003. They
operate during the "ozone season" (May through September)
when NOX emissions are
most likely to have an impact on atmospheric ozone levels.
All three Dallman Power Station units use once-through condenser
cooling water systems with water being obtained from Lake
Springfield and discharged back into the lake.
Power Plants
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