Diamond Valley Lake — Plant Summary
- EIA Plant ID
- 7942
- Capacity
- 29.7 MW
- Primary Fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Status
- Operating
- Location
- Riverside, CA
- Operating Since
- 2001
- Generators
- 9
- Operator
- Metropolitan Water District of S CA
- Parent Company
- —
- Annual Generation
- 5,436 MWh
- Capacity Factor
- 2.1%
- Balancing Authority
- California Independent System Operator
- ISO/RTO
- CAISO
- NERC Region
- WECC
Diamond Valley Lake
OperatingHydro
Ranked #83 of 247 Hydro plants in CA#410 of 1454 nationally
29.7 MW Hydro operating in Riverside, CA — California Independent System Operator
EIAWD
29.7 MW
Nameplate Capacity
9
Generators
units
Conventional Hydroelectric
Technology
2001
Operating Since
Location
Coordinates
33.6810, -117.0705
County
Riverside, CA
Nearby Plants
- Diamond Valley Solar ProjectSolar1.3 MW · 3.5 km
- West Valley High School SolarSolar1 MW · 7.1 km
- AP North Lake I, LPSolar20 MW · 8.6 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Metropolitan Water District of S CA | — | — |
| Owner(s) | Metropolitan Water District of S CA | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
Diamond Valley Lake is a hydroelectric power plant located in Riverside County, California. The plant, which began operating in 2001, has a total capacity of 29.7 MW distributed across 9 generators. It is owned and operated by the Metropolitan Water District of S CA. The plant utilizes water as its primary fuel source and employs conventional hydroelectric technology.
The plant operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. In terms of size, Diamond Valley Lake ranks 83rd out of 247 power plants in California and 415th nationally out of 1464 plants. The latest annual generation data indicates an output of 5,436 MWh, resulting in a capacity factor of 2.1%.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
115 kV
Regulatory Status
RE
Entity Type
State
Sector
Electric Utility
Generation
0 MWh
Latest Month
5.4K MWh
Annual Generation
2.1%
Capacity Factor
Jan 2022 – Dec 2024
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
CAISO
LMP Node
ESRPP1_7_N001
Pricing Hub
TH_SP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
News & Articles (10)Beta
Hazards·flooding
Wildflowers Bloom Early at Diamond Valley Lake, Trail Reopens Feb. 27
After a burst of early-season rain, spring has arrived ahead of schedule at Diamond Valley Lake, and so have the wildflowers.
Diamond Valley Lake (other)
ColoradoBoulevard.net·2 weeks ago
Hazards·flooding
A wildflower bloom is back in Riverside County. Here’s how to (responsibly) check it out
Visitors are being asked to enjoy the bloom at Diamond Valley Lake thoughtfully, so stay on the trail and don't pick the flowers.
Diamond Valley Lake (other)
LAist·2 weeks ago
Hazards·flooding
Metropolitan to Reopen Wildflower Trail at Diamond Valley Lake
HEMET, Calif., February 25, 2026--After a burst of early-season rain, spring has arrived ahead of schedule at Diamond Valley Lake — and so...
Diamond Valley Lake (other)
Yahoo Finance·2 weeks ago
Regulatory·other
DAILY DIGEST, 2/27: Delta Conveyance Project opponents say plan would hurt environment, tourism, farming; Reclamation announces initial CVP allocation; Non-functional turf ban – compliance deadlines and action steps; The Colorado River is nearing coll
Several news sources featured in the Daily Digest may limit the number of articles you can access without a subscription.
Maven's Notebook·2 weeks ago
Last updated 2026-03-14
View all 10 articles