Natural gas
This 1,150-megawatt natural gas-powered generating station replaced a 225-megawatt coal-fueled plant that had operated at the same site for more than 70 years. It is the most thermally efficient generating power plant in Wisconsin.
Location
This plant occupies more than 52 acres of land at the southern end of Port Washington, Wis., on the shore of Lake Michigan.
Type of plant
Combined-cycle combustion turbine using natural gas for intermediate-load (16 hours a day – 5 to 7 days per week)
Cost
$664 million
Number of active generating units
Two power blocks. Each block consists of two combustion-turbine generators and one steam-turbine generator.
Year in service
1st Unit (Block 2): 2005
2nd Unit (Block 1): 2008
Generating capacity
Block 1: 575 megawatts
Block 2: 575 megawatts
Total net generating capacity
1,150 megawatts
Fuel
Natural gas
Average fuel usage
100,000 dekatherms of natural gas daily
Fuel handling
16-mile lateral from Jackson, Wis.
HRSG heat recovery steam generator
One per gas turbine.
Height: 110 feet
Steam temperature: 1,050 degrees Fahrenheit
Steam pressure: 2,000 pounds per square inch
Chimneys
Four 210-foot stacks - two for each unit.
Cooling system
About 565,000 gallons of water from Lake Michigan are used every minute to convert the exhaust steam from the turbine back into water for reuse. This water is returned to the lake.
Control room
All major functions in the plant are controlled by operators with computer support to continuously monitor and report on pressures, temperatures, flow rates, etc. In addition, the computer aids in start-up, shutdown, load adjustments and information for future reference.
Questions
Call us
Customer service: 800-242-9137 (24 hours a day)
Updated: December 2012
