County annual report · FIPS 08013
2020 Boulder County, CO Power Outage Report
In 2020, customers in Boulder County, CO went without power for an average of 2.4 hours, a total of 408K customer-hours (Colorado average 2.2 hours). That ranks 26th worst of 57 Colorado counties and 2070th of 3,019 nationally.
Compared with CO, the US and 2019
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Boulder County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 8, 2020 15:45 | September 10, 2020 08:00 | 1d 16h | 16,554 | 83K |
| 2 | October 7, 2020 11:15 | October 30, 2020 23:00 | 23d 11h | 9,036 | 160K |
| 3 | December 8, 2020 16:00 | December 8, 2020 18:45 | 2h 45m | 6,941 | 4,040 |
| 4 | April 18, 2020 15:00 | April 18, 2020 22:00 | 7h | 4,254 | 4,541 |
| 5 | June 1, 2020 15:00 | June 2, 2020 07:30 | 16h 30m | 4,104 | 3,556 |
| 6 | June 19, 2020 13:30 | June 19, 2020 22:45 | 9h 15m | 3,907 | 5,102 |
| 7 | February 12, 2020 17:00 | February 12, 2020 22:45 | 5h 45m | 2,986 | 2,997 |
| 8 | March 19, 2020 15:15 | March 21, 2020 01:45 | 1d 10h | 2,511 | 10K |
| 9 | February 10, 2020 16:15 | February 10, 2020 19:30 | 3h 15m | 2,384 | 2,408 |
| 10 | September 27, 2020 22:15 | September 27, 2020 22:45 | 30m | 2,054 | 1,027 |
Outage episodes by size in 2020: 101 reached 100+ customers, 19 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 Boulder County reported on EIA Form 861 for 2020, 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 |
|---|---|---|---|---|---|
| Public Service Co of Colorado | 2020 | 2.3 hrs | 1.03 | 83 min | 0.85 |
| United Power, Inc | 2020 | 2.6 hrs | 0.91 | 71 min | - |
| Poudre Valley REA, Inc | 2020 | 2.3 hrs | 1.04 | 1.8 hrs | 0.95 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| City of Longmont | - | - | - | - | - |
| Town of Estes Park | - | - | - | - | - |
| Town of Lyons - (CO) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 84% of Colorado's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 166,613 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. Boulder County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Boulder County, CO annual power outage report, 2020, 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/2020/colorado/boulder-county