County annual report · FIPS 06077
2015 San Joaquin County, CA Power Outage Report
In 2015, customers in San Joaquin County, CA went without power for an average of 0.0 hours, a total of 47 customer-hours (California average 3.1 hours). That ranks 21st worst of 23 California counties and 2468th of 2,484 nationally.
Compared with CA, the US
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in San Joaquin County, 2015
The 5 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 1, 2015 17:30 | January 1, 2015 22:30 | 5h | 10 | 40 |
| 2 | January 1, 2015 23:30 | January 1, 2015 23:45 | 15m | 10 | 3 |
| 3 | December 13, 2015 17:30 | December 13, 2015 17:45 | 15m | 2 | 1 |
| 4 | July 10, 2015 22:15 | July 11, 2015 00:30 | 2h 15m | 1 | 2 |
| 5 | November 20, 2015 19:45 | November 20, 2015 21:45 | 2h | 1 | 2 |
Outage episodes by size in 2015: 0 reached 100+ customers, 0 reached 1,000+ customers, 0 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 2015, 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. | 2015 | 2.5 hrs | 1.05 | 1.6 hrs | 0.87 |
| Modesto Irrigation District | 2015 | 31 min | 0.37 | - | - |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| City of Lodi - (CA) | - | - | - | - | - |
| 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 2015; 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, 2015, 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/2015/california/san-joaquin-county