County annual report · FIPS 06079
2018 San Luis Obispo County, CA Power Outage Report
In 2018, customers in San Luis Obispo County, CA went without power for an average of 1.8 hours, a total of 229K customer-hours (California average 3.7 hours). That ranks 36th worst of 57 California counties and 1941st 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 San Luis Obispo 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 21, 2018 23:15 | November 23, 2018 09:15 | 1d 10h | 13,830 | 16K |
| 2 | December 27, 2018 16:30 | December 28, 2018 05:15 | 12h 45m | 8,020 | 2,219 |
| 3 | August 20, 2018 02:00 | August 20, 2018 10:30 | 8h 30m | 5,540 | 15K |
| 4 | August 27, 2018 16:30 | August 28, 2018 02:00 | 9h 30m | 5,472 | 4,226 |
| 5 | November 29, 2018 04:15 | December 3, 2018 05:15 | 4d 1h | 3,821 | 18K |
| 6 | August 9, 2018 15:15 | August 10, 2018 03:00 | 11h 45m | 3,691 | 5,550 |
| 7 | November 10, 2018 15:00 | November 11, 2018 03:30 | 12h 30m | 3,241 | 1,870 |
| 8 | September 16, 2018 02:00 | September 17, 2018 08:45 | 1d 6h | 2,841 | 4,426 |
| 9 | July 10, 2018 13:15 | July 10, 2018 23:00 | 9h 45m | 2,834 | 4,201 |
| 10 | October 18, 2018 02:15 | October 19, 2018 01:00 | 22h 45m | 2,438 | 4,210 |
Outage episodes by size in 2018: 97 reached 100+ customers, 24 reached 1,000+ customers, 1 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 Luis Obispo 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 |
| Central Coast Community Energy | - | - | - | - | - |
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 ÷ 125,727 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 Luis Obispo County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), San Luis Obispo 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/san-luis-obispo-county