Marmet — Plant Summary
- EIA Plant ID
- 6561
- Capacity
- 14.4 MW
- Primary Fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Status
- Operating
- Location
- Kanawha, WV
- Operating Since
- 1935
- Generators
- 3
- Operator
- Appalachian Power Co
- Parent Company
- American Electric Power Company
- Annual Generation
- 67,422 MWh
- Capacity Factor
- 53.3%
- Balancing Authority
- PJM Interconnection, LLC
- ISO/RTO
- PJM
- NERC Region
- RFC
Marmet
OperatingHydro
Ranked #9 of 15 Hydro plants in WV#556 of 1454 nationally
14.4 MW Hydro operating in Kanawha, WV — PJM Interconnection, LLC
EIAGEMWD
14.4 MW
Nameplate Capacity
3
Generators
units
Conventional Hydroelectric
Technology
1935
Operating Since
Location
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Appalachian Power Co | Appalachian Power | — |
| Owner(s) | Appalachian Power Co | American Electric Power Company | — |
| Status | Operating | — | — |
Ownership Chain
About
The Marmet Hydroelectric Plant, located in Kanawha County, West Virginia, has a total capacity of 14.4 MW across three generators. The plant began operating in 1935 and utilizes conventional hydroelectric technology with water as its primary fuel source. It is owned by American Electric Power Company and operated by Appalachian Power Co. The plant operates within the PJM Interconnection, LLC balancing authority and the RFC NERC region.
In the most recent year of reported generation data, the Marmet plant produced 67,422 MWh, achieving a capacity factor of 53.3%. The plant's installed cost was $1010.3 per kW. Marmet ranks as the 9th largest of 15 hydroelectric plants in West Virginia and 570th out of 1464 nationally.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
RFC
Balancing Authority
PJM Interconnection, LLC
Grid Voltage
46 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
8.9K MWh
Latest Month
67.4K MWh
Annual Generation
53.3%
Capacity Factor
Jan 2022 – Dec 2024
Financial DataBeta
Source: FERC Form 1HIGH
$1,578/kW
Installed Cost
$30.0/MWh
Operating Cost
Appalachian Power Company
Reporting Utility
Cumulative Installed Cost
Per-Unit Cost Trends
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
PJM
LMP Node
MARMET 4 KV MA1
Pricing Hub
AEP-DAYTON HUB
Location Type
Generation Node
Node Source
Curated node match
News & Articles (10)Beta
General
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Britannica·2 weeks ago
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Alternative Energy | Pros, Cons, Debate, Arguments, Solar, Wind, Fossil Fuels, Gas, Coal, Hydroelectricity, Biomass, & Nuclear
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Britannica·2 weeks ago
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Alternative Energy | Pros, Cons, Debate, Arguments, Solar, Wind, Fossil Fuels, Gas, Coal, Hydroelectricity, Biomass, & Nuclear
Can alternative energies effectively replace fossil fuels? Learn the pros and cons of the debate.
Britannica·2 weeks ago
Last updated 2026-03-26
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