County annual report · FIPS 06001
2024 Alameda County, CA Power Outage Report
In 2024, customers in Alameda County, CA went without power for an average of 3.8 hours, a total of 2.9M customer-hours (California average 6.1 hours). That ranks 51st worst of 57 California counties and 1893rd 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 Alameda 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 3, 2024 15:15 | February 13, 2024 05:15 | 9d 14h | 28,382 | 224K |
| 2 | December 11, 2024 16:15 | December 21, 2024 06:30 | 9d 14h | 20,925 | 186K |
| 3 | January 10, 2024 15:00 | January 15, 2024 13:30 | 4d 22h | 15,741 | 24K |
| 4 | March 14, 2024 14:30 | March 23, 2024 05:30 | 8d 15h | 14,504 | 83K |
| 5 | October 31, 2024 06:30 | November 10, 2024 03:45 | 9d 21h | 13,380 | 187K |
| 6 | June 29, 2024 22:45 | July 6, 2024 04:30 | 6d 5h | 12,014 | 147K |
| 7 | March 29, 2024 15:30 | April 1, 2024 11:45 | 2d 20h | 11,785 | 11K |
| 8 | November 10, 2024 14:30 | November 24, 2024 08:45 | 13d 18h | 9,579 | 119K |
| 9 | August 26, 2024 13:45 | August 31, 2024 13:45 | 5d | 8,695 | 81K |
| 10 | May 9, 2024 13:00 | May 12, 2024 21:15 | 3d 8h | 7,557 | 32K |
Outage episodes by size in 2024: 105 reached 100+ customers, 68 reached 1,000+ customers, 7 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 Alameda 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 |
| Alameda Municipal Power | 2024 | 55 min | 0.88 | 55 min | 0.88 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Port of Oakland | - | - | - | - | - |
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 ÷ 751,616 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. Alameda County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Alameda 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/alameda-county