County annual report · FIPS 08013
2023 Boulder County, CO Power Outage Report
In 2023, customers in Boulder County, CO went without power for an average of 1.4 hours, a total of 239K customer-hours (Colorado average 2.1 hours). That ranks 36th worst of 52 Colorado counties and 2509th of 2,977 nationally.
Compared with CO, the US and 2022
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Boulder County, 2023
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 22, 2023 03:00 | November 22, 2023 03:45 | 45m | 11,700 | 4,876 |
| 2 | October 26, 2023 13:00 | October 26, 2023 22:00 | 9h | 5,977 | 1,699 |
| 3 | April 23, 2023 09:15 | April 23, 2023 12:30 | 3h 15m | 5,445 | 11K |
| 4 | October 21, 2023 01:15 | October 21, 2023 01:30 | 15m | 4,625 | 1,156 |
| 5 | May 10, 2023 19:30 | May 10, 2023 22:15 | 2h 45m | 4,009 | 2,995 |
| 6 | November 27, 2023 03:45 | November 28, 2023 04:00 | 1d | 3,656 | 1,123 |
| 7 | April 15, 2023 05:00 | April 15, 2023 07:30 | 2h 30m | 3,368 | 5,884 |
| 8 | February 20, 2023 00:45 | February 21, 2023 22:15 | 1d 21h | 3,068 | 13K |
| 9 | March 31, 2023 17:30 | April 1, 2023 06:45 | 13h 15m | 2,961 | 9,947 |
| 10 | May 16, 2023 13:15 | May 17, 2023 00:15 | 11h | 2,945 | 1,249 |
Outage episodes by size in 2023: 106 reached 100+ customers, 21 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 2023, 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 | 2023 | 1.9 hrs | 1.02 | 1.7 hrs | 0.98 |
| United Power, Inc | 2023 | 65 min | 0.65 | 65 min | 0.65 |
| Poudre Valley REA, Inc | 2023 | 67 min | 0.68 | 67 min | 0.68 |
| 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 n/a of Colorado's customers in 2023; 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, 2023, 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/2023/colorado/boulder-county