County annual report · FIPS 06077
2024 San Joaquin County, CA Power Outage Report
In 2024, customers in San Joaquin County, CA went without power for an average of 4.5 hours, a total of 1.4M customer-hours (California average 6.1 hours). That ranks 45th worst of 57 California counties and 1728th of 2,990 nationally.
Compared with CA, the US and 2023
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in San Joaquin County, 2024
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 4, 2024 10:00 | February 8, 2024 06:45 | 3d 20h | 46,271 | 591K |
| 2 | February 16, 2024 15:30 | February 20, 2024 02:15 | 3d 10h | 25,252 | 15K |
| 3 | January 29, 2024 14:30 | February 4, 2024 07:30 | 5d 17h | 13,030 | 33K |
| 4 | January 10, 2024 14:00 | January 11, 2024 12:00 | 22h | 12,154 | 14K |
| 5 | March 29, 2024 13:30 | March 31, 2024 19:15 | 2d 5h | 11,785 | 54K |
| 6 | April 2, 2024 14:45 | April 3, 2024 10:00 | 19h 15m | 8,185 | 20K |
| 7 | July 5, 2024 15:00 | July 6, 2024 12:30 | 21h 30m | 7,590 | 9,124 |
| 8 | June 28, 2024 15:30 | July 3, 2024 11:45 | 4d 20h | 6,750 | 25K |
| 9 | January 17, 2024 15:45 | January 19, 2024 08:00 | 1d 16h | 6,407 | 47K |
| 10 | May 19, 2024 06:45 | May 23, 2024 08:15 | 4d 1h | 6,357 | 15K |
Outage episodes by size in 2024: 179 reached 100+ customers, 67 reached 1,000+ customers, 5 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving San Joaquin County reported on EIA Form 861 for 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Pacific Gas & Electric Co. | 2024 | 8.5 hrs | 2.15 | 4.6 hrs | 1.82 |
| Modesto Irrigation District | 2024 | 58 min | 0.61 | 43 min | 0.47 |
| City of Lodi - (CA) | 2024 | 17 min | 0.27 | 17 min | 0.27 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Lathrop Irrigation District | - | - | - | - | - |
| Port of Stockton - (CA) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of California's customers in 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 324,543 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. San Joaquin County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), San Joaquin County, CA annual power outage report, 2024, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2024/california/san-joaquin-county