County annual report · FIPS 06007
2018 Butte County, CA Power Outage Report
In 2018, customers in Butte County, CA went without power for an average of 154.5 hours, a total of 14.0M customer-hours (California average 3.7 hours). That ranks 1st worst of 57 California counties and 33rd of 2,798 nationally.
Compared with CA, the US and 2017
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in Butte County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 8, 2018 14:45 | November 10, 2018 11:45 | 1d 21h | 25,696 | 1.0M |
| 2 | November 10, 2018 15:00 | December 31, 2018 00:15 | 50d 9h | 25,304 | 12.7M |
| 3 | September 24, 2018 07:45 | September 25, 2018 03:00 | 19h 15m | 4,516 | 39K |
| 4 | August 20, 2018 14:15 | August 21, 2018 05:15 | 15h | 4,326 | 7,113 |
| 5 | October 14, 2018 16:15 | October 16, 2018 06:30 | 1d 14h | 3,901 | 64K |
| 6 | June 24, 2018 01:15 | June 24, 2018 06:45 | 5h 30m | 3,807 | 9,126 |
| 7 | October 8, 2018 14:45 | October 10, 2018 04:45 | 1d 14h | 3,639 | 5,255 |
| 8 | October 3, 2018 15:45 | October 5, 2018 06:00 | 1d 14h | 3,204 | 6,295 |
| 9 | June 14, 2018 15:45 | June 15, 2018 04:00 | 12h 15m | 3,066 | 6,059 |
| 10 | July 2, 2018 08:30 | July 2, 2018 21:00 | 12h 30m | 3,022 | 9,401 |
Outage episodes by size in 2018: 73 reached 100+ customers, 20 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 Butte County reported on EIA Form 861 for 2018, 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. | 2018 | 5.0 hrs | 1.18 | 2.1 hrs | 1.08 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| City of Biggs - (CA) | - | - | - | - | - |
| City of Gridley - (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 91% of California's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 90,543 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. Butte County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Butte County, CA annual power outage report, 2018, 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/2018/california/butte-county