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3.7 MW Natural Gas Internal Combustion Engine (3 MW) + Petroleum Liquids (1 MW) operating in Fillmore, MN — Midcontinent Independent Transmission System Operator, Inc..
3.7 MW
Nameplate Capacity
3
Generators
units
Hybrid (2)
Technology
Natural Gas Internal Combustion Engine + Petroleum Liquids
1949
Operating Since
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Preston Public Utilities Comm | — | — |
| Owner(s) | Preston Public Utilities Comm | — | — |
| Status | Operating | — | — |
The Preston power plant, located in Fillmore County, Minnesota, has a total capacity of 3.7 MW. The plant began operating in 1949 and is owned and operated by Preston Public Utilities Comm. It utilizes natural gas as its primary fuel, employing natural gas internal combustion engine technology. The plant also has the capability to use petroleum liquids. With three generators, Preston is considered a hybrid plant due to its dual-fuel capabilities.
In terms of its role within the state and national power infrastructure, the Preston plant is ranked 33rd out of 33 plants in Minnesota and 1648th out of 1963 plants nationally. It operates within the Midcontinent Independent Transmission System Operator, Inc. (MISO) balancing authority and the MRO NERC region. The plant's latest annual generation was 163 MWh, resulting in a capacity factor of 0.5%.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
69.0 kV
Regulatory Status
RE — Regulated
Entity Type
Municipal
Sector
Electric Utility
16 MWh
Latest Month
163 MWh
Annual Generation
0.5%
Capacity Factor
CO₂ Intensity
1355 lb/MWh
Low-utilization plant — per-MWh rate is dominated by startup/standby emissions; not directly comparable to baseload averages.
NOx
31 lb/MWh
SO₂
0.542 lb/MWh
CH₄
0.032 lb/MWh
N₂O
0.004 lb/MWh
Capacity Factor
0.4%
Annual Net Gen
0 GWh
CO₂eq
1357 lb/MWh
Subregion
MRO West
2013
$765/kW
Est. Construction Cost
Total estimated cost: $2.8M
Market Position
ISO/RTO Market
MISO
LMP Node
SMP.PRESTON
Pricing Hub
MINN.HUB
Location Type
Generation Node
Node Source
Curated node match
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