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94.5 MW Conventional Hydroelectric (6 MW) + Wood/Wood Waste Biomass (88 MW) operating in Carlton, MN
94.5 MW
Nameplate Capacity
7
Generators
units
Hybrid (2)
Technology
Conventional Hydroelectric + Wood/Wood Waste Biomass
1929
Operating Since
Coordinates
46.7243, -92.4298
County
Carlton, MN
Nearby Plants
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Request a demo →| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Sappi Cloquet LLC | Sappi Cloquet LLC | — |
| Owner(s) | Sappi Cloquet LLC | Sappi | — |
| Status | Operating | operating | — |
The Sappi Cloquet Mill is a 94.5 MW hybrid power plant located in Carlton County, Minnesota. The plant, which began operating in 1929, is owned by Sappi, a South Africa-based company, and operated by Sappi Cloquet LLC. The facility utilizes both conventional hydroelectric and wood/wood waste biomass technologies. It consists of seven generators powered by water and wood.
The Sappi Cloquet Mill operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the MRO NERC region. In the most recent year of data, the plant generated 443,349 MWh of electricity, achieving a capacity factor of 53.6%. It ranks as the largest of 24 biomass and hydro plants in Minnesota, and 203rd out of 1464 such plants nationally.
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
115.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Industrial
Sector
Industrial CHP
35.0K MWh
Latest Month
443.3K MWh
Annual Generation
53.6%
Capacity Factor
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Request a demo →CO₂ Intensity
120 lb/MWh
NOx
0.657 lb/MWh
SO₂
3 lb/MWh
CH₄
0.095 lb/MWh
N₂O
0.027 lb/MWh
Capacity Factor
54.9%
Annual Net Gen
454 GWh
CO₂eq
130 lb/MWh
Subregion
MRO West
2013
$3,495/kW
Est. Construction Cost
Total estimated cost: $330.3M
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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Request a demo →Point of Interconnection
Nearest Substation
Potlatch 115KV Substation · 115 kV
Substation Distance
< 10 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
—
Pricing Hub
MINN.HUB
Node Source
OSM spatial match
Substation identified. Node ID not yet resolved against ISO roster.
Last updated 2026-03-26
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