County annual report · FIPS 08013
2018 Boulder County, CO Power Outage Report
In 2018, customers in Boulder County, CO went without power for an average of 1.5 hours, a total of 255K customer-hours (Colorado average 1.6 hours). That ranks 28th worst of 49 Colorado counties and 2079th of 2,798 nationally.
Compared with CO, the US and 2017
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Boulder 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 | August 14, 2018 22:45 | August 15, 2018 03:00 | 4h 15m | 7,351 | 1,849 |
| 2 | July 2, 2018 16:30 | July 2, 2018 17:30 | 1h | 6,271 | 1,568 |
| 3 | June 4, 2018 13:30 | June 5, 2018 01:30 | 12h | 4,719 | 3,600 |
| 4 | November 15, 2018 06:15 | November 15, 2018 12:00 | 5h 45m | 4,214 | 4,293 |
| 5 | March 27, 2018 11:45 | March 28, 2018 06:00 | 18h 15m | 3,875 | 1,693 |
| 6 | May 21, 2018 07:45 | May 21, 2018 11:45 | 4h | 3,861 | 5,242 |
| 7 | July 30, 2018 16:30 | July 31, 2018 08:30 | 16h | 3,814 | 3,552 |
| 8 | April 17, 2018 14:30 | April 19, 2018 07:45 | 1d 17h | 3,809 | 30K |
| 9 | October 15, 2018 00:30 | October 15, 2018 18:15 | 17h 45m | 3,542 | 21K |
| 10 | June 7, 2018 20:45 | June 8, 2018 08:15 | 11h 30m | 2,413 | 3,668 |
Outage episodes by size in 2018: 130 reached 100+ customers, 34 reached 1,000+ customers, 0 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 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 |
|---|---|---|---|---|---|
| Public Service Co of Colorado | 2018 | 1.9 hrs | 1.02 | 1.6 hrs | 0.98 |
| United Power, Inc | 2018 | 70 min | 0.75 | - | - |
| Poudre Valley REA, Inc | 2018 | 1.6 hrs | 1.05 | 1.6 hrs | 1.05 |
| 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 88% of Colorado's customers in 2018; 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, 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/colorado/boulder-county