County annual report · FIPS 08119
2021 Teller County, CO Power Outage Report
In 2021, customers in Teller County, CO went without power for an average of 8.4 hours, a total of 79K customer-hours (Colorado average 2.8 hours). That ranks 7th worst of 52 Colorado counties and 899th of 2,974 nationally.
Compared with CO, the US and 2020
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Teller County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 15, 2021 17:15 | December 17, 2021 23:15 | 2d 6h | 5,093 | 60K |
| 2 | May 3, 2021 13:15 | May 3, 2021 22:45 | 9h 30m | 2,662 | 1,573 |
| 3 | November 18, 2021 16:15 | November 18, 2021 19:00 | 2h 45m | 1,942 | 4,313 |
| 4 | September 28, 2021 16:30 | September 28, 2021 22:30 | 6h | 1,547 | 486 |
| 5 | October 1, 2021 18:15 | October 1, 2021 19:30 | 1h 15m | 1,502 | 1,143 |
| 6 | May 23, 2021 19:00 | May 23, 2021 19:45 | 45m | 1,285 | 322 |
| 7 | December 9, 2021 15:45 | December 9, 2021 17:30 | 1h 45m | 1,020 | 1,275 |
| 8 | August 20, 2021 02:15 | August 20, 2021 04:00 | 1h 45m | 507 | 259 |
| 9 | January 15, 2021 01:45 | January 15, 2021 07:45 | 6h | 503 | 672 |
| 10 | June 29, 2021 19:30 | June 29, 2021 21:15 | 1h 45m | 395 | 297 |
Outage episodes by size in 2021: 21 reached 100+ customers, 7 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 Teller County reported on EIA Form 861 for 2021, 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 | 2021 | 3.0 hrs | 1.20 | 2.2 hrs | 1.00 |
| CORE Electric Cooperative | 2021 | 2.7 hrs | 0.91 | 46 min | 0.54 |
| Black Hills Colorado Electric, LLC | 2021 | 5.5 hrs | 1.95 | 65 min | 1.09 |
| City of Colorado Springs - (CO) | 2021 | 3.8 hrs | 0.99 | 50 min | 0.81 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 83% of Colorado's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 9,307 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. Teller County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Teller County, CO annual power outage report, 2021, 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/2021/colorado/teller-county