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25 MW Natural Gas Fired Combustion Turbine (11 MW) + Petroleum Liquids (14 MW) standby in Auglaize, OH — PJM Interconnection, LLC
25 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Natural Gas Fired Combustion Turbine + Petroleum Liquids
1992
Operating Since
Coordinates
40.5458, -84.3889
County
Auglaize, OH
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | City of St Marys - (OH) | — | — |
| Owner(s) | City of Amherst- (OH), City of Bowling Green - (OH), City of Cuyahoga Falls - (OH), City of Dover - (OH), City of Galion, City of Hamilton - (OH), City of Niles - (OH), City of Painesville, City of St Marys - (OH), City of Wadsworth - (OH) | — | — |
| Status | Standby | — | — |
The St Marys plant, located in Auglaize County, Ohio, has a total capacity of 25 MW. The plant began operating in 1992 and is owned and operated by the City of St Marys. The primary fuel source is distillate fuel oil (DFO), and the plant utilizes both natural gas-fired combustion turbine and petroleum liquids technologies, classifying it as a hybrid plant. It consists of two generators.
The St Marys plant operates within the PJM Interconnection, LLC balancing authority and the RFC NERC region. In terms of size, it is ranked 5th out of 38 similar plants in Ohio and 162nd out of 886 nationally. The plant's latest annual generation was 350 MWh, resulting in a capacity factor of 0.2%.
Generated from EIA, GEM, and public data sources
ISO/RTO
PJM
Market
ISO/RTO Member
NERC Region
RFC
Balancing Authority
40 MWh
Latest Month
350 MWh
Annual Generation
0.2%
Capacity Factor
CO₂ Intensity
2784 lb/MWh
Low-utilization plant — per-MWh rate is dominated by startup/standby emissions; not directly comparable to baseload averages.
NOx
20 lb/MWh
SO₂
2013
$765/kW
Est. Construction Cost
Total estimated cost: $19.1M
Market Position
ISO/RTO Market
PJM
LMP Node
CITYSTMA138 KV GENDUMMY
Pricing Hub
AEP-DAYTON HUB
Location Type
Generation Node
Node Source
Curated node match
Last updated 2026-03-26
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ask pi about St MarysPJM Interconnection, LLC (PJM)
Grid Voltage
12.47 kV
Regulatory Status
RE — Regulated
Entity Type
Municipal
Sector
Electric Utility
6 lb/MWh
CH₄
0.129 lb/MWh
N₂O
0.026 lb/MWh
Capacity Factor
0.0%
Annual Net Gen
0 GWh
CO₂eq
2794 lb/MWh
Subregion
RFC West