HydroOperatingIID

Drop 3 (CA)

Hydro power plant in Imperial County, California. 9.2 MW of nameplate capacity across 2 generators, operated by Imperial Irrigation District.

Also known as Drop 3 · EIA plant 386

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Drop 4Drop 2 (CA)Ormesa IIOrmesa IIIDrop 15 km
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6 plants within 17 km, from EIA coordinates.

Key facts

Capacity
9.2 MWNameplate
Generators
2 operatingEIA-860M, August 2026
Operating since
February 1941First generator online
Operator
Imperial Irrigation DistrictEIA operator ID 9216
Grid
IIDBalancing authority IID
Price nodes
None linkedNo verified ISO node
Location
Imperial County, CA32.7054, −115.1261
EIA plant ID
386EIA plant page

Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.

How much power Drop 3 (CA) produces

Free · EIA-923

Net generation, 2025

15.3 GWh

15,268 MWh, final

Capacity factor, 2025

18.9%

2024: 32.7%

January to July 2026

Not reported

Provisional. 0 of 7 months reported

Range, 2015 to 2025

15.3–46.4

GWh a year. Low 2025, high 2016

Annual net generation, GWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
200053,725Not reported12 of 12
200151,596Not reported12 of 12
200252,255Not reported12 of 12
200351,068Not reported12 of 12
200448,825Not reported12 of 12
200545,390Not reported12 of 12
200650,751Not reported12 of 12
200745,862Not reported12 of 12
200848,564Not reported12 of 12
200948,060Not reported12 of 12
201048,67156.7%12 of 12
201152,08560.7%12 of 12
201250,41258.6%12 of 12
201342,94150.0%12 of 12
201441,178Not reported12 of 12
201540,53750.3%12 of 12
201646,35557.4%12 of 12
201740,74750.6%12 of 12
201841,90452.0%12 of 12
201941,00250.9%12 of 12
202040,17649.7%12 of 12
202140,42050.2%12 of 12
202234,57042.9%12 of 12
202327,63834.3%12 of 12
202426,40232.7%12 of 12
202515,26818.9%12 of 12
2026 (provisional, partial year)Not reportedNot reported0 of 7

* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.

Power prices and basis

Free account

No verified ISO price node is linked to this plant, or its price history could not load.

Emissions

Free · EPA CAMPD

No EPA emissions units are linked to this plant.

Water use

Free · EIA-923 cooling, USGS

No EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.

Generators

Free · EIA-860M
GeneratorTechnologyNameplate MWOnline since
1Conventional Hydroelectric4.8February 1941
2Conventional Hydroelectric4.4November 1966

Ownership and offtake

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Ownership and offtake are part of Pro

Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Imperial Irrigation District as the operator, which is not always the owner.

Modeled data

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Power plants near Drop 3 (CA)

More plants operated by Imperial Irrigation District

Questions about Drop 3 (CA)

How much power does Drop 3 (CA) produce?

Drop 3 (CA) reported 15,268 MWh (15.3 GWh) of net generation in 2025, a 18.9% capacity factor on 9.2 MW of nameplate capacity.

Where is Drop 3 (CA)?

Drop 3 (CA) is in Imperial County, California, at 32.7054, −115.1261. It is in the Imperial Irrigation District balancing area (IID).

Who operates Drop 3 (CA)?

EIA-860M for August 2026 lists Imperial Irrigation District as the operator (EIA operator ID 9216). The operator is not always the owner.

When did Drop 3 (CA) start operating?

Its first generator began operating in February 1941, according to EIA-860M.

Sources

  • EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
  • EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
  • Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)

Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page