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230.1 MW Bit. Coal operating in Sangamon, IL
230.1 MW
Nameplate Capacity
1
Generators
unit
Conventional Steam Coal
Technology
2009
Operating Since
Coordinates
39.7548, -89.6024
County
Sangamon, IL
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | City of Springfield - (IL) | City of Springfield - (IL) | — |
| Owner(s) | City of Springfield - (IL) | City of Springfield - (IL) | — |
| Status | Operating | — | — |
The V.Y. Dallman Power Station is a coal-fired power plant located in Springfield, Illinois, at the north end of Lake Springfield. It is owned and operated by the city-owned utility City Water, Light & Power. The plant operates on pulverized coal supplied by truck from an Illinois coal mine, and takes its cooling water from Lake Springfield.
Read more on WikipediaThe Dallman power plant, located in Sangamon County, Illinois, has a total capacity of 230.1 MW. The plant, which began operating in 2009, is owned and operated by the City of Springfield (IL). It utilizes conventional steam coal (BIT) as its primary fuel source and consists of a single generator. Dallman operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the SERC NERC region.
In the most recent year with available data, the plant generated 900,919 MWh of electricity, achieving a capacity factor of 44.8%. Dallman is ranked as the 4th largest power plant out of 4 in Illinois, and 47th out of 50 nationally. News coverage related to the plant has included topics such as industry trends, regulatory matters, and potential hazards.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
138.0 kV
Regulatory Status
RE — Regulated
Entity Type
Municipal
Sector
Electric Utility
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.
102.2K MWh
Latest Month
900.9K MWh
Annual Generation
44.8%
Capacity Factor
Forward-looking generation outlook with probabilistic ranges across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
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CO₂ Intensity
2551 lb/MWh
NOx
0.893 lb/MWh
SO₂
0.823 lb/MWh
CH₄
0.289 lb/MWh
N₂O
0.042 lb/MWh
Capacity Factor
16.8%
Annual Net Gen
643 GWh
CO₂eq
2570 lb/MWh
Subregion
SERC Midwest
No financial data available for this plant.
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Market Position
ISO/RTO Market
MISO
LMP Node
CWLP.DALLMA84
Pricing Hub
ILLINOIS.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
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 2026-05-31
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