County annual report · FIPS 06055
2024 Napa County, CA Power Outage Report
In 2024, customers in Napa County, CA went without power for an average of 22.3 hours, a total of 1.4M customer-hours (California average 6.1 hours). That ranks 12th worst of 57 California counties and 449th 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 Napa 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 | April 5, 2024 14:00 | April 7, 2024 00:45 | 1d 10h | 20,079 | 9,424 |
| 2 | February 4, 2024 10:15 | February 13, 2024 11:45 | 9d 1h | 12,733 | 540K |
| 3 | November 6, 2024 02:45 | November 8, 2024 05:30 | 2d 2h | 7,939 | 211K |
| 4 | October 18, 2024 00:30 | October 20, 2024 20:30 | 2d 20h | 5,300 | 191K |
| 5 | June 13, 2024 15:15 | June 15, 2024 13:45 | 1d 22h | 4,317 | 4,512 |
| 6 | August 24, 2024 12:30 | August 25, 2024 01:15 | 12h 45m | 3,563 | 9,492 |
| 7 | August 27, 2024 15:15 | August 28, 2024 11:45 | 20h 30m | 3,523 | 12K |
| 8 | June 24, 2024 10:00 | June 25, 2024 12:15 | 1d 2h | 3,483 | 6,153 |
| 9 | July 9, 2024 05:15 | July 10, 2024 00:15 | 19h | 3,452 | 7,354 |
| 10 | October 12, 2024 04:30 | October 14, 2024 01:45 | 1d 21h | 3,421 | 9,165 |
Outage episodes by size in 2024: 155 reached 100+ customers, 39 reached 1,000+ customers, 2 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 Napa 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 |
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 ÷ 63,828 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. Napa County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Napa 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/napa-county