Island Street Peaking Plant

🔥 Natural GasElectric Utility60 MW capacity

53rd largest plant in Wisconsin · 3332nd nationally

Island Street Peaking Plant is a natural gas power plant in Wisconsin with a nameplate capacity of 60.5 MW. It generates roughly 8.0k MWh per year — enough to power about 761 average U.S. homes.

Its capacity factor of 2% reflects intermittent or peaking operation. At 1567 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.

PeakingMid-meritBaseload0%40%80%100%2%
Peaking — intermittent or backup
Capacity61 MWnameplate
Annual Generation8.0k MWhEPA eGRID
Capacity Factor2%of theoretical max
Annual CO₂6.3kmetric tons

Location

Plant NameIsland Street Peaking Plant
OperatorWppi Energy
CityKaukauna
CountyOutagamie County
StateWisconsin
ZIP54130
Coordinates44.27610, -88.26580

This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.

Natural GasOilHydroelectricWindBiomass

Generators (1)

IDTechnologyFuelCapacityStatusOnline
FT81Natural Gas Fired Combustion TurbineNatural Gas60.5 MWOperating2004

Emissions (annual)

CO₂6.3k metric tons
NOₓ5 metric tons
CO₂ Rate1567 lb/MWh
U.S. grid average800 lb/MWhNatural gas combined-cycle average900 lb/MWhThis plant1,567 lb/MWhCoal plant average2,100 lb/MWh

Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.

Grid context

NERC RegionMRO
Balancing AuthorityMidcontinent Independent Transmission System Operator, Inc..

About Natural Gas plants

Natural gas plants are the workhorse of the modern grid. Combined-cycle units achieve very high efficiency and can ramp up and down quickly to balance variable renewables. They emit roughly half the CO₂ per MWh of coal and far less of other pollutants, but they still release upstream methane during fuel extraction.

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