County annual report · FIPS 41051
2018 Multnomah County, OR Power Outage Report
In 2018, customers in Multnomah County, OR went without power for an average of 2.5 hours, a total of 991K customer-hours (Oregon average 2.0 hours). That ranks 11th worst of 34 Oregon counties and 1653rd of 2,798 nationally.
Compared with OR, the US and 2017
Coverage line is EAGLE-I's share of Oregon customers tracked each year.
Biggest outages in Multnomah 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 | May 15, 2018 10:00 | May 16, 2018 15:00 | 1d 5h | 36,180 | 50K |
| 2 | February 22, 2018 16:00 | February 23, 2018 23:45 | 1d 7h | 18,426 | 20K |
| 3 | August 25, 2018 10:45 | September 4, 2018 04:00 | 9d 17h | 13,495 | 64K |
| 4 | May 26, 2018 19:45 | May 28, 2018 03:30 | 1d 7h | 7,871 | 18K |
| 5 | April 9, 2018 10:00 | April 10, 2018 03:30 | 17h 30m | 6,539 | 18K |
| 6 | May 7, 2018 01:15 | May 9, 2018 18:15 | 2d 17h | 5,549 | 20K |
| 7 | March 27, 2018 10:00 | March 27, 2018 14:30 | 4h 30m | 5,245 | 16K |
| 8 | July 19, 2018 00:15 | August 14, 2018 08:15 | 26d 8h | 4,903 | 64K |
| 9 | August 14, 2018 10:15 | August 18, 2018 11:00 | 4d | 4,803 | 26K |
| 10 | July 10, 2018 15:45 | July 18, 2018 23:15 | 8d 7h | 4,291 | 39K |
Outage episodes by size in 2018: 106 reached 100+ customers, 47 reached 1,000+ customers, 3 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 Multnomah 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 |
|---|---|---|---|---|---|
| PacifiCorp | 2018 | 3.2 hrs | 1.62 | 2.0 hrs | 1.25 |
| Portland General Electric Co | 2018 | 88 min | 0.52 | 88 min | 0.52 |
| Columbia River Peoples Ut Dist | 2018 | 46 min | 0.44 | 25 min | 0.33 |
| Bonneville Power Administration | - | - | - | - | - |
| City of Cascade Locks - (OR) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 75% of Oregon's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 388,772 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. Multnomah County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Multnomah County, OR 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/oregon/multnomah-county