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31.3 MW Landfill Gas (9 MW) + Natural Gas Fired Combustion Turbine (22 MW) operating in Milwaukee, WI
31.3 MW
Nameplate Capacity
4
Generators
units
Hybrid (2)
Technology
Landfill Gas + Natural Gas Fired Combustion Turbine
1971
Operating Since
Coordinates
43.0214, -87.9014
County
Milwaukee, WI
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Milwaukee Metro Sewerage Dist | — | — |
| Owner(s) | Milwaukee Metro Sewerage Dist | — | — |
| Status | Operating | — | — |
The MMSD Jones Island Wastewater plant is a 31.3 MW hybrid power plant located in Milwaukee County, Wisconsin. It began operating in 1971 and is owned and operated by Milwaukee Metro Sewerage Dist. The plant utilizes landfill gas (LFG) as its primary fuel source and employs natural gas-fired combustion turbine technology. It consists of 4 generators.
The plant operates within the Midcontinent Independent Transmission System Operator, Inc. (MISO) balancing authority and the ReliabilityFirst Corporation (RFC) NERC region. In terms of landfill gas power plants, MMSD Jones Island Wastewater is ranked 1 out of 12 in Wisconsin and 5 out of 284 nationally. The latest annual generation data indicates an output of 79,791 MWh, resulting in a capacity factor of 29.1%.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
RFC
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
26.4 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Municipal
Sector
Commercial CHP
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
7.8K MWh
Latest Month
79.8K MWh
Annual Generation
29.1%
Capacity Factor
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CO₂ Intensity
444 lb/MWh
NOx
0.000 lb/MWh
SO₂
0.065 lb/MWh
CH₄
0.008 lb/MWh
N₂O
0.001 lb/MWh
Capacity Factor
27.7%
Annual Net Gen
76 GWh
CO₂eq
445 lb/MWh
Subregion
RFC West
2013
$965/kW
Est. Construction Cost
Total estimated cost: $30.2M
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
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Market Position
ISO/RTO Market
MISO
LMP Node
WEC.VALLYGA1
Pricing Hub
MICHIGAN.HUB
Alt. Hub / Zone
ILLINOIS.HUB
Location Type
Generation Node
Node Source
Curated node match
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-26
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