Power outage history
Peoria County Illinois
2.7hours
without power for the average customer in a typical year, 2018–2025
77th most of 101 in Illinois 59% below the national median
Every day since 2015
Eleven years, one night at a time
Each cell is a day. The brighter it is, the larger the share of Peoria's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2024 was the worst well-recorded year, at 4.0 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Peoria, hours without power per customer
The record
The biggest outages since 2015
Ranked by customer-hours lost: customers out multiplied by how long they stayed out. Times are local.
| Began | Storm | Peak out | Share | Lasted | 90% restored | Customer-hours |
|---|---|---|---|---|---|---|
| Dec 28, 2015 | Ice storm | 23,261 | 17% | 2.4 d | 2.2 d | 722k |
| Jul 15, 2024 | Thunderstorms | 8,677 | 6% | 36 h | 37 h | 180k |
| Jul 11, 2020 | Thunderstorms | 12,327 | 9% | 18 h | 17 h | 134k |
| Jun 7, 2015 | Thunderstorms | 11,440 | 8% | 24 h | 22 h | 130k |
| Aug 10, 2020 | Thunderstorms | 6,870 | 5% | 29 h | 39 h | 112k |
| Jun 13, 2024 | Thunderstorms | 8,930 | 6% | 17 h | 15 h | 79k |
| Jun 29, 2023 | Thunderstorms | 5,926 | 4% | 29 h | 33 h | 68k |
| Nov 25, 2018 | Winter storm | 6,440 | 5% | 12 h | 14 h | 52k |
| Sep 18, 2022 | Thunderstorms | 6,172 | 4% | 14 h | 18 h | 50k |
| Jun 25, 2024 | Thunderstorms | 8,713 | 6% | 13 h | 16 h | 44k |
| Jun 20, 2015 | Thunderstorms | 9,563 | 7% | 9.2 h | 8.0 h | 42k |
| Jun 25, 2019 | Thunderstorms | 5,271 | 4% | 11 h | 14 h | 31k |
| May 7, 2023 | Thunderstorms | 2,477 | 2% | 16 h | – | 30k |
| Sep 27, 2019 | Thunderstorms | 3,420 | 2% | 12 h | – | 27k |
| Jan 1, 2021 | Ice storm | 5,834 | 4% | 9.0 h | 14 h | 23k |
| Jun 23, 2024 | No storm report | 4,186 | 3% | 7.0 h | – | 23k |
| Aug 11, 2023 | Thunderstorms | 6,042 | 4% | 8.8 h | 14 h | 21k |
| Sep 30, 2020 | No storm report | 3,231 | 2% | 7.5 h | – | 21k |
| May 24, 2022 | No storm report | 6,130 | 4% | 3.0 h | 2.2 h | 17k |
| Mar 15, 2021 | No storm report | 4,510 | 3% | 5.8 h | – | 17k |
| Nov 21, 2015 | No storm report | 7,593 | 6% | 3.5 h | 10 h | 17k |
| Aug 24, 2021 | No storm report | 3,591 | 3% | 4.8 h | – | 15k |
| Jun 11, 2023 | No storm report | 2,542 | 2% | 6.0 h | – | 15k |
| May 17, 2022 | No storm report | 1,754 | 1% | 7.8 h | – | 14k |
| Nov 12, 2015 | Thunderstorms | 4,101 | 3% | 3.5 h | – | 13k |
| Jan 18, 2023 | No storm report | 3,477 | 3% | 4.2 h | – | 12k |
| Apr 22, 2025 | No storm report | 4,596 | 3% | 3.5 h | – | 12k |
| Jun 11, 2015 | Flooding | 6,464 | 5% | 1.8 h | 48 min | 11k |
| May 18, 2019 | No storm report | 3,074 | 2% | 6.0 h | – | 10k |
| Nov 11, 2015 | Thunderstorms | 3,173 | 2% | 4.5 h | – | 9.9k |
After the peak
How fast the lights come back
Each line is one major outage, from its peak. The amber line is the typical path.
When it happens
The outage clock
Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.
What was happening
Weather behind the outages
Each outage is matched to NOAA storm reports for Peoria from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Thunderstorms 66%
- No storm on record 27%
- Winter storm 4.3%
- Ice storm 1.9%
- Flooding 0.5%
Who keeps the lights on
Utilities serving Peoria
As each utility reports to the Energy Information Administration for its whole Illinois territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Ameren Illinois Company | Investor Owned | 287 | 130 | 1.19 | 16.7 | 1.1M |
| Spoon River Electric Coop, Inc | IL | – | – | – | – | 47k |
EIA Form 861, latest year each utility reported. Outage minutes are SAIDI, the yearly minutes the average customer goes without power; outages a year are SAIFI.
About these numbers
Notes
Outages come from the EAGLE-I record of utility outage maps collected every 15 minutes by Oak Ridge National Laboratory. Hours without power are customer-hours divided by the county's 137,518 electricity customers. Averages use well-covered years from 2018. Outages shorter than 15 minutes, and utilities that publish no outage map, are not in the record, so these figures understate the total. How every number is made →