White River Lock and Dam 3
Hydro power plant · Stone County, Arkansas
Nameplate capacity
4.3 MW
Rank in Arkansas
#78
of 122 plants
In service since
2006
August 2006
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Ozark Hydro Management, LLC
- County
- Stone County
- Generating units
- 1
- Share of state capacity
- 0.02%
- Rank among hydro plants in Arkansas
- #17 of 19
- EIA plant code
- 57162
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| LD#3 | Conventional Hydroelectric | 4.3 MW | 4.3 MW | 2006 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Arkansas
| Zeuber | Solar | 4.6 MW |
| White River Lock and Dam 1 | Hydro | 4.3 MW |
| Fayetteville Public Schools (SWEPCO) | Solar | 4.0 MW |
| LRWRA | Solar | 4.0 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 4.3 MW solar plant and a 4.3 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Arkansas power plants · What Arkansas actually generates