Mill Creek 3
Hydro power plant · San Bernardino County, California
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Southern California Edison Co
- County
- San Bernardino County
- Generating units
- 3
- Share of state capacity
- 0.00%
- Rank among hydro plants in California
- #195 of 244
- EIA plant code
- 7147
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 3 | Conventional Hydroelectric | 1.0 MW | 1.0 MW | 2003 | Standby/Backup: available for service but not normally used |
| 4 | Conventional Hydroelectric | 1.0 MW | 1.0 MW | 2004 | Standby/Backup: available for service but not normally used |
| 5 | Conventional Hydroelectric | 1.0 MW | 1.0 MW | 2004 | Standby/Backup: available for service but not normally used |
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 California
| Merced 1 PV | Solar | 3.0 MW |
| Micro Santa Clara | Natural gas | 3.0 MW |
| Mira Loma | Solar | 3.0 MW |
| Morongo CRS 1 | Solar | 3.0 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 3.0 MW solar plant and a 3.0 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 California power plants · What California actually generates