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45.4 MW Hydro operating in Pulaski, AR
45.4 MW
Nameplate Capacity
2
Generators
units
Conventional Hydroelectric
Technology
1988
Operating Since
Coordinates
34.7957, -92.3571
County
Pulaski, AR
Nearby Plants
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Request a demo →Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | City of North Little Rock - (AR) | City of North Little Rock (Arkansas) | — |
| Owner(s) | City of North Little Rock - (AR) | City of North Little Rock (Arkansas) | — |
| Status | Operating | operating | — |
GEM identifies the owner as City of North Little Rock (Arkansas)
This entity is not yet in the GEM ownership database — chain unavailable.
The Murray hydroelectric plant is located in Pulaski County, Arkansas. It has a total capacity of 45.4 MW across two generators and began operating in 1988. The plant is owned and operated by the City of North Little Rock. The primary fuel source is water (WAT), and the plant utilizes conventional hydroelectric technology.
Murray's latest annual generation was 113,592 MWh, resulting in a capacity factor of 28.5%. The plant operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the SERC NERC region. Murray is ranked as the 11th largest power plant out of 19 in Arkansas, and 315th out of 1464 nationally.
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
115.0 kV
Regulatory Status
RE — Regulated
Entity Type
Municipal
Sector
Electric Utility
15.3K MWh
Latest Month
113.6K MWh
Annual Generation
28.5%
Capacity Factor
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$2,294/kW
Est. Construction Cost
Total estimated cost: $104.2M
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Nearest Substation
LR Cammack Substation · 115 kV
Substation Distance
< 10 km
Operator
Entergy Arkansas
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
EAI.NLRLD
Pricing Hub
ARKANSAS.HUB
Location Type
Load Zone
Node Source
EIA-860 direct report
Last updated 2026-03-26
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