Data last collected:
PowerPlantFactsEvidence report · prepared 19 October 2026https://powerplantfacts.com/entity/448
EIA plant 448
Gustine · Merced · CA
W R Gianelli
Operated by California Dept. of Water Resources
Published location
Where is W R Gianelli?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
37.069200, -121.077200
Open the interactive map ↗Map data © OpenStreetMap contributors
Capacity is not generation. Nameplate MW describes equipment; annual MWh describes recorded output. Proposed and retired units are not added to operating capacity.
Equipment mix
Operating capacity by technology
Grouped from this plant’s represented generator records. Use the CA plant index for regional peers.
See the evidence
Electricity output across the year
Monthly net generation shows the seasonal shape of this plant's represented output. A negative value is retained when the source reports net consumption.
1-28,810
2-48,820
3-34,510
44,220
545,900
639,990
718,420
8-27,330
9-33,050
10-24,110
11-40,710
12-79,400
MWh net generation · 2024 final edition · EIA 923 represented operating rows. 12 of 12 supplied rows shown; 0 missing values omitted. Months with no reported numeric value are omitted, not treated as zero.
Read the chart as a table
| Record | MWh net generation |
|---|---|
| 1 | -28,810 |
| 2 | -48,820 |
| 3 | -34,510 |
| 4 | 4,220 |
| 5 | 45,900 |
| 6 | 39,990 |
| 7 | 18,420 |
| 8 | -27,330 |
| 9 | -33,050 |
| 10 | -24,110 |
| 11 | -40,710 |
| 12 | -79,400 |
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | -28,810 MWh |
| 2 | -48,820 MWh |
| 3 | -34,510 MWh |
| 4 | 4,220 MWh |
| 5 | 45,900 MWh |
| 6 | 39,990 MWh |
| 7 | 18,420 MWh |
| 8 | -27,330 MWh |
| 9 | -33,050 MWh |
| 10 | -24,110 MWh |
| 11 | -40,710 MWh |
| 12 | -79,400 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| 1 | Hydroelectric Pumped Storage | WAT | 53 | OP |
| 2 | Hydroelectric Pumped Storage | WAT | 53 | OP |
| 3 | Hydroelectric Pumped Storage | WAT | 53 | OP |
| 4 | Hydroelectric Pumped Storage | WAT | 53 | OP |
| 5 | Hydroelectric Pumped Storage | WAT | 53 | OP |
| 6 | Hydroelectric Pumped Storage | WAT | 53 | OP |
| 7 | Hydroelectric Pumped Storage | WAT | 53 | OP |
| 8 | Hydroelectric Pumped Storage | WAT | 53 | OP |
Continue exploring
Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
448
Sector
Electric Utility
Water source
Wtr Fr Penstocks San Luis Res
Data edition
2024-final
Use this record
Questions this evidence can answer
01What exactly is this record?
Use the name, place, date and identifiers above to confirm that you have the right W R Gianelli power plant: capacity and generation | PowerPlantFacts record.
02What does the evidence establish?
Read the reported values with their units, coverage dates and source notes. Keep observed facts separate from estimates or interpretation.
03What should I verify next?
Follow the primary-source links and check the limitations before using this evidence for a decision, comparison or citation.
A closer look at W R Gianelli
Variation in the published months
Across 4 numeric monthly generation entries, 5 has the highest recorded value (45,900 MWh) and 4 the lowest (4,220 MWh). Their difference is 41,680 MWh. Missing months have not been treated as zero.
Generator capacity in different operating conditions
| Generator ID | Technology | Nameplate MW | Summer MW | Winter MW | Minimum load MW |
|---|---|---|---|---|---|
| 1 | Hydroelectric Pumped Storage | 53.0 | 51.0 | 51.0 | 5.0 |
| 2 | Hydroelectric Pumped Storage | 53.0 | 50.0 | 50.0 | 5.0 |
| 3 | Hydroelectric Pumped Storage | 53.0 | 50.0 | 50.0 | 5.0 |
| 4 | Hydroelectric Pumped Storage | 53.0 | 50.0 | 50.0 | 5.0 |
| 5 | Hydroelectric Pumped Storage | 53.0 | 50.0 | 50.0 | 5.0 |
| 6 | Hydroelectric Pumped Storage | 53.0 | 50.0 | 50.0 | 5.0 |
| 7 | Hydroelectric Pumped Storage | 53.0 | 50.0 | 50.0 | 5.0 |
| 8 | Hydroelectric Pumped Storage | 53.0 | 50.0 | 50.0 | 5.0 |
EIA-860 2024 final source. Ratings describe capacity, not actual generation or availability. Missing ratings are not zero.
Source: US Energy Information Administration Form EIA-860 2024 plant and operable-generator workbooks; archive 2024. US EIA-authored information is generally public domain; cite EIA, preserve third-party exceptions, changes and no-endorsement context. Source-specific derived data.