County annual report · FIPS 17063
2016 Grundy County, IL Power Outage Report
In 2016, customers in Grundy County, IL went without power for an average of 0.4 hours, a total of 17K customer-hours (Illinois average 1.5 hours). That ranks 92nd worst of 100 Illinois counties and 2083rd of 2,391 nationally.
Compared with IL, the US and 2015
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Grundy County, 2016
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 29, 2016 18:00 | April 29, 2016 19:00 | 1h | 1,141 | 1,141 |
| 2 | February 19, 2016 19:00 | February 20, 2016 17:00 | 22h | 957 | 2,686 |
| 3 | April 2, 2016 17:00 | April 3, 2016 17:00 | 1d | 796 | 1,727 |
| 4 | June 18, 2016 09:00 | June 18, 2016 09:30 | 30m | 729 | 365 |
| 5 | February 21, 2016 19:30 | February 21, 2016 20:30 | 1h | 575 | 290 |
| 6 | June 21, 2016 22:30 | June 22, 2016 02:15 | 3h 45m | 369 | 563 |
| 7 | May 27, 2016 23:30 | May 28, 2016 10:00 | 10h 30m | 308 | 943 |
| 8 | April 15, 2016 07:30 | April 15, 2016 10:30 | 3h | 264 | 668 |
| 9 | June 22, 2016 23:00 | June 23, 2016 10:00 | 11h | 236 | 1,237 |
| 10 | May 6, 2016 17:30 | May 6, 2016 19:00 | 1h 30m | 225 | 241 |
Outage episodes by size in 2016: 19 reached 100+ customers, 1 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 Grundy County reported on EIA Form 861 for 2016, 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 |
|---|---|---|---|---|---|
| Commonwealth Edison Co | 2016 | 1.6 hrs | 0.86 | 63 min | 0.72 |
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 Illinois's customers in 2016; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 43,433 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. Grundy County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Grundy County, IL annual power outage report, 2016, 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/2016/illinois/grundy-county