SIDNEY A MURRAY JR HYDROELECTRIC
OperatingHydro power plant
- Capacity
- 192 MW
- Primary fuel
- Hydro
- County
- Concordia Parish
- Operator
- FIRST NATIONAL BANK-COMMERCE
- Status
- Operating
- Commissioned
- 1990
- EIA plant ID
- 54678
- Generators
- 8
- Technology
- Conventional Hydroelectric
- Net generation (2024)
- 885 GWh
- Capacity factor (2024, EIA nameplate)
- 52%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 31.0887, -91.6199
SIDNEY A MURRAY JR HYDROELECTRIC, a 192 MW Hydro power plant in Concordia Parish, Louisiana. Operated by FIRST NATIONAL BANK-COMMERCE, commissioned 1990.
How SIDNEY A MURRAY JR HYDROELECTRIC compares
With 192 MW of capacity, SIDNEY A MURRAY JR HYDROELECTRIC ranks 26th among the 72 operating power plants Bywatts maps in Louisiana. It accounts for about 0.8% of all operating capacity in Louisiana. Nationally it is the 92nd-largest of the 1,243 operating Hydro plants in the database. Commissioned in 1990, it is newer than 54% of the 72 operating Louisiana plants with a recorded commissioning year.
EIA-860 lists 8 generators at the site with 192 MW of nameplate capacity, all conventional hydroelectric technology. Net generation was 885 GWh in 2024 (a 52% capacity factor), down 3% from 2022.
Grid neighborhood
The closest transmission line found within 10 miles is a 115 kV line owned by ENTERGY LOUISIANA LLC, under 0.1 miles away.
Computed by Bywatts from HIFLD power plant and transmission line records and EIA-860/923 survey data; distances are straight-line. Sources and methodology
Weather peril exposure
SIDNEY A MURRAY JR HYDROELECTRIC is a 192 MW hydro power plant in Concordia Parish, LA, operated by FIRST NATIONAL BANK-COMMERCE, commissioned in 1990. Concordia Parish carries high modeled catastrophe exposure in the FEMA National Risk Index, scoring 3.7 of 5 at the 68th national percentile. Hurricane is the leading peril, rated Relatively Low by FEMA at the 79th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a hydro plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Concordia Parish hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Hurricane | Relatively Low | 79th | 4.2 of 5 | 0.12 |
| Hail | Relatively Low | 72nd | 3.9 of 5 | 2.2 |
| Tornado | Relatively Low | 66th | 3.7 of 5 | 0.60 |
| Heat wave | Relatively Low | 66th | 3.6 of 5 | 17.4 |
| Ice storm | Relatively Low | 65th | 3.6 of 5 | 0.94 |
| Earthquake | Very Low | 55th | 3.2 of 5 | <0.01 |
| Strong wind | Relatively Low | 51st | 3.0 of 5 | 1.9 |
| Lightning | Relatively Low | 51st | 3.0 of 5 | 74.3 |
| Winter weather | Very Low | 35th | 2.4 of 5 | 2.1 |
| Wildfire | Very Low | 30th | 2.2 of 5 | <0.01 |
| Riverine flooding | Very Low | 3rd | 1.1 of 5 | 1.0 |
Perils not assessed in Concordia Parish
These perils carry no usable National Risk Index figure for this county, so they are excluded from the scoring rather than scored zero. A zero would claim the peril was assessed and found benign.
| Peril | Why it is not scored |
|---|---|
| Coastal flooding | FEMA rating is "No Rating" for this county |
Model hail, wind and flood exposure for Concordia Parish in the weather risk calculator
Ratings are the FEMA National Risk Index county hazard ratings; the peril score is a Bywatts transform of the FEMA national percentile. Full data sources and the solar vulnerability methodology are in the weather risk calculator.
Modeled estimate for screening and negotiation. Built from FEMA National Risk Index county hazard data and a solar vulnerability layer documented above. Not a quote, a binder, or actuarial advice, and not a substitute for a carrier's own model. Hazard data: FEMA National Risk Index December 2025, synced 2026-07-24. Resolution is county level, not site level.