Query
Donnells
Type
Entity Briefing
Entity
Donnells
Generated
2026-10-19T16:25:31.986Z

Briefing on Donnells

Entity Briefing
Generated Oct 19, 2026·Dataset freshness not reported
72 MW
Capacity
Operating
Current status
1957
Operating since
1
Generators
34.8%
Capacity factor
219 GWh
Annual generation
Briefing/plantOperating

Donnells is a 72 MW Conventional Hydroelectric asset in CAISO (California), currently Operating.

Donnells is reported in California since 1957 under Oakdale&South San Joaquin Irrigation D.. Available operating and financial measures include 34.8% capacity factor and 219 GWh annual generation; $2294/kW reported CapEx.

Location
Tuolumne, California
Technology
Conventional Hydroelectric
Owner / parent
Oakdale&South San Joaquin Irrigation D.
Operator
Oakdale&South San Joaquin Irrigation D.
Grid
CAISO (California)
Plant ID
415

What stands out

1

Donnells is a 72 MW Conventional Hydroelectric asset in California with status Operating.

2

Latest annual operating measures report 34.8% capacity factor and 219 GWh annual generation.

3

Available financial measures include $2294/kW CapEx.

Market and operating context

ISO / market
CAISO (California)
Balancing authority
California Independent System Operator
NERC region
WECC
State rank
#56 of 247
National rank
#243 of 1,462

Why it matters

For this asset in CAISO (California), operating status, generation, ownership, and linked events are the primary facts for performance and asset-level diligence. The exact chart and source-linked records below let the reader test those facts before moving to a deeper report.