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10.4 MW Hydro under construction in LaSalle, IL — Midcontinent Independent Transmission System Operator, Inc..
10.4 MW
Nameplate Capacity
4
Generators
units
Conventional Hydroelectric
Technology
—
Operating Since
Coordinates
41.3278, -88.7011
County
LaSalle, IL
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Marseilles Land and Water Company | — | — |
| Owner(s) | Marseilles Land and Water Company | — | — |
| Status | Under construction | — | — |
The Marseilles Hydro Plant, also known as the Marseilles Hydro Development or the Marseilles Hydro Power Station, is a historic hydroelectric power station along the Illinois River in Marseilles, Illinois, USA.
Read more on WikipediaMarseilles Lock and Dam Hydro is a hydroelectric power plant located in LaSalle County, Illinois. The plant has a total capacity of 10.4 MW, distributed across four generators. It is owned and operated by Marseilles Land and Water Company. The primary fuel source for the plant is water (WAT), utilizing conventional hydroelectric technology.
The plant operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority, situated in the Midwest Reliability Organization (MRO) NERC region. Marseilles Lock and Dam Hydro holds the rank of 2 out of 8 hydroelectric plants in Illinois, and ranks 650 out of 1464 nationally.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
No generation data available for this plant.
2023
$1,415/kW
Est. Construction Cost
Total estimated cost: $14.7M
Point of Interconnection
Nearest Substation
Marseilles Substation · 138 kV
Substation Distance
< 10 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
—
Pricing Hub
ILLINOIS.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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ask pi about Marseilles Lock and Dam HydroMidcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
34.5 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP