County annual report · FIPS 08013
2015 Boulder County, CO Power Outage Report
In 2015, customers in Boulder County, CO went without power for an average of 1.0 hours, a total of 172K customer-hours (Colorado average 1.2 hours). That ranks 18th worst of 33 Colorado counties and 1741st of 2,484 nationally.
Compared with CO, the US
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Boulder County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 12, 2015 03:15 | October 12, 2015 15:30 | 12h 15m | 7,716 | 17K |
| 2 | November 18, 2015 18:15 | November 19, 2015 08:00 | 13h 45m | 4,626 | 6,123 |
| 3 | May 9, 2015 03:15 | May 9, 2015 14:30 | 11h 15m | 4,589 | 6,253 |
| 4 | November 17, 2015 15:00 | November 18, 2015 15:00 | 1d | 4,211 | 6,224 |
| 5 | July 17, 2015 21:00 | July 17, 2015 22:30 | 1h 30m | 3,832 | 4,788 |
| 6 | September 7, 2015 21:00 | September 8, 2015 01:15 | 4h 15m | 3,801 | 3,946 |
| 7 | May 9, 2015 15:15 | May 9, 2015 23:30 | 8h 15m | 3,389 | 7,802 |
| 8 | September 24, 2015 11:45 | September 24, 2015 14:30 | 2h 45m | 3,349 | 2,552 |
| 9 | May 27, 2015 13:15 | May 27, 2015 16:00 | 2h 45m | 2,321 | 889 |
| 10 | September 28, 2015 15:15 | September 28, 2015 21:45 | 6h 30m | 2,320 | 1,771 |
Outage episodes by size in 2015: 99 reached 100+ customers, 20 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 2015, 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 | 2015 | 1.6 hrs | 0.98 | 88 min | 0.95 |
| Poudre Valley REA, Inc | 2015 | 3.5 hrs | 1.63 | 2.0 hrs | 0.97 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| United Power, Inc | - | - | - | - | - |
| 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 2015; 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, 2015, 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/2015/colorado/boulder-county