Utility / plant operator
South San Joaquin Irr District
37 recorded solar installations interconnected by South San Joaquin Irr District — mostly in California.
At a glance
South San Joaquin Irr District is a utility or plant operator with 37 recorded solar installations interconnected, totalling 8.1 MW (as reported), dated 2009 to 2025. It ranks 162nd of 191 profiled utilities & plant operators by recorded volume. All of its located records are in California.
Dataset updated . Sources: LBNL Tracking the Sun + permits + state programs + USGS/EIA utility-scale.
Growth
Installations by year
Latest records
Most recent recorded installs
| Date | Location | Size | $/W | Segment |
|---|---|---|---|---|
| Jul 8, 2025 | Oakdale, CA | 33.1 kW | $1.13/W | COM |
| Nov 16, 2022 | Oakdale, CA | 1,451.5 kW | $1.38/W | UTILITY |
| Dec 21, 2020 | Oakdale, CA | 1,988.7 kW | $1.62/W | UTILITY |
| Jul 26, 2018 | Oakdale, CA | 40.8 kW | $3.10/W | COM |
| Nov 23, 2016 | Oakdale, CA | 295.9 kW | — | COM |
| Sep 28, 2016 | Oakdale, CA | 39.1 kW | $5.88/W | COM |
| Nov 30, 2015 | Oakdale, CA | 121.4 kW | — | COM |
| Apr 29, 2015 | Oakdale, CA | 315.7 kW | — | COM |
| Apr 29, 2015 | Oakdale, CA | 218.6 kW | — | COM |
| Mar 9, 2015 | Oakdale, CA | 47.2 kW | — | COM |
See all 37 installations →searchable & filterable; export to CSV with a free account
Service geography
How does South San Joaquin Irr District compare with other utilities & plant operators?
By recorded installations South San Joaquin Irr District ranks 162nd of the 191 utilities & plant operators with a full profile. Its median system is 73.4 kW, about 11 times the median of 6.8 kW for all recorded installations. Utilities & plant operators with similar recorded volume include New England Power Company (38), Pivot Energy (38) and Wisconsin Electric Power Co (38).
How has South San Joaquin Irr District's installation volume changed?
The earliest dated installation interconnected by South San Joaquin Irr District is from 2009. The busiest year on record is 2025, with 12 installations. The most recent dated record is from Oct 14, 2025.
Where are South San Joaquin Irr District's solar installations?
All of its located installations are in California. The places with the most records are Oakdale, CA (37).
Frequently asked questions
How many solar installations has South San Joaquin Irr District interconnected?
PanelCensus records 37 installations interconnected by South San Joaquin Irr District, from Jan 1, 2009 to Oct 14, 2025, totalling 8.1 MW of capacity across 1 state. Coverage varies by state, so actual totals may be higher.
Where does South San Joaquin Irr District operate?
Most recorded activity is in California (37).
How large are South San Joaquin Irr District's solar installations?
The median recorded installation is 73.4 kW, against 6.8 kW for all recorded installations; total recorded capacity is 8.1 MW.
When was South San Joaquin Irr District's most recent recorded solar installation?
The latest dated record is from Oct 14, 2025. Public registers report with a lag, so newer installations may not appear yet.
Why does South San Joaquin Irr District appear on rooftop solar records?
On distributed (rooftop and commercial) records the operator field names the utility the system interconnects with; on utility-scale plants it names the plant operator. South San Joaquin Irr District's profile counts both.
Related utilities & plant operators and places
- All utilities & plant operators· 191 profiles
- Solar in California· 37 interconnected by South San Joaquin Irr District
- New England Power Company· 38 installations
- Pivot Energy· 38 installations
- Wisconsin Electric Power Co· 38 installations
- Columbia Solar Energy LLC· 36 installations
- Dimension Energy LLC· 36 installations
- SRE Utility Solar 1, LLC· 36 installations
About this data
Source: Lawrence Berkeley National Laboratory's Tracking the Sun, merged with city permit records, state incentive programs and the USGS U.S. Large-Scale Solar Photovoltaic Database / EIA-860 plant registers, as published October 19, 2026 — PanelCensus refreshes it as each source publishes new records. See the methodology for how records are matched, cleaned and scored.
Cite as: PanelCensus, “South San Joaquin Irr District, utility / plant operator”, https://panelcensus.com/operators/south-san-joaquin-irr-district-429 (data as of October 19, 2026).