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Mill Creek 3 — Power plant · Hydro · Southern California Edison CoEnergy Center — Announced · Gas, combustion turbine · CA · 0.9 MW · 7.3 mi awaySolar Photovoltaic Project #20 — Postponed · Solar · CA · 3.5 MW · 9.4 mi awayRedlands DC 9 - sline609 — Under construction · Solar + storage · CA · 5 MW · 9.4 mi awayRCWMD Badlands Landfill Gas Project — Postponed · Biomass · CA · 1.2 MW · 10.2 mi awaySunE Redlands — Postponed · Solar · CA · 1.5 MW · 11.7 mi awaySolar Photovoltaic Project #28 — Postponed · Solar · CA · 0.5 MW · 13.4 mi away
  • Combustion
  • Clean firm
  • Wind & solar
  • In development
  • Under construction
  • Operating
  • 10 · 100 · 1,000 MW

Mill Creek 3

Power plant · Hydro

Key facts

Power plant · Hydroran 3% of 2025 Standby
Capacity
Capacity: sourceEIA-860M · Open licenseMW
Commissioned
1903
Net generation, 2025
771 MWh
Grid
12 kV to Southern California Edison Co (CISO)
Location
San Bernardino County, California
Operated by
Southern California Edison CoSourceEIA-860M Preliminary Monthly Electric Generator Inventory

Output

Net generation MWh by year, 2001 to 2025

Operations detail

Details

Who’s behind it

No companies named in filings yet.

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Technology
Hydro source: “Conventional Hydroelectric”
Age
123 years since 1903
All 6 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
AttributeValue
Grid
Nerc region
WECC
Report year
2025
Grid voltage kv
12
Transmission owner
Southern California Edison Co
Balancing authority code
CISO
Balancing authority name
California Independent System Operator
Eia status
By code
SB
Mw
3
Units
3
Standby mw
3
Status rule
majority_mw_standby
In service mw
3
Out of service mw
0
Fuel burned (MMBtu), 20252,802
Capacity factor, 20250.029
Net generation (MWh), 2025771
Balancing authority codeCISO

Timeline

  • In service · EIA-860M

Sources

3 sources

Sources EIA-860M · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory

Sources

Every source and license · Attribution

View at source

Around this plant

Nearby

within 15 mi
ProjectKindAwayMW
Energy Center Announced Gas, combustion turbine 7.3 mi 0.9
Solar Photovoltaic Project #20 Postponed Solar 9.4 mi 3.5
Redlands DC 9 - sline609 Under construction Solar + storage 9.4 mi 5
RCWMD Badlands Landfill Gas Project Postponed Biomass 10.2 mi 1.2
SunE Redlands Postponed Solar 11.7 mi 1.5
Solar Photovoltaic Project #28 Postponed Solar 13.4 mi 0.5

Sources EIA-860M

Sources

  • EIA-860MOpen license · retrieved Nov 4, 2026

Attribution