County annual report · FIPS 08029
2025 Delta County, CO Power Outage Report
In 2025, customers in Delta County, CO went without power for an average of 3.0 hours, a total of 36K customer-hours (Colorado average 4.6 hours). That ranks 25th worst of 52 Colorado counties and 2060th of 3,000 nationally.
Compared with CO, the US and 2024
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Delta County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 17, 2025 20:00 | April 17, 2025 23:00 | 3h | 1,400 | 1,053 |
| 2 | February 3, 2025 00:30 | February 3, 2025 03:30 | 3h | 1,213 | 404 |
| 3 | August 13, 2025 22:15 | August 14, 2025 01:45 | 3h 30m | 1,139 | 915 |
| 4 | March 1, 2025 23:15 | March 2, 2025 00:30 | 1h 15m | 1,131 | 640 |
| 5 | October 1, 2025 21:00 | October 1, 2025 21:15 | 15m | 1,084 | 271 |
| 6 | January 28, 2025 08:45 | January 28, 2025 09:45 | 1h | 1,082 | 541 |
| 7 | June 23, 2025 17:15 | June 28, 2025 12:00 | 4d 18h | 1,079 | 607 |
| 8 | June 22, 2025 10:15 | June 22, 2025 11:45 | 1h 30m | 724 | 1,078 |
| 9 | April 16, 2025 14:15 | April 16, 2025 19:30 | 5h 15m | 675 | 741 |
| 10 | April 17, 2025 01:45 | April 17, 2025 03:15 | 1h 30m | 668 | 1,001 |
Outage episodes by size in 2025: 30 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 Delta County reported on EIA Form 861 for 2025, 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 | 2024 | 5.9 hrs | 1.68 | 2.6 hrs | 1.36 |
| Delta Montrose Electric Assn | 2024 | 2.6 hrs | 1.42 | 1.6 hrs | - |
| Grand Valley Power | 2024 | 1.6 hrs | - | 1.6 hrs | - |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| City of Delta - (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 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 11,874 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. Delta County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Delta County, CO annual power outage report, 2025, 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/2025/colorado/delta-county