Electricity rates in Dardenne Prairie, MO
Dardenne Prairie (12,890 people, Saint Charles County) is served by 2 electric utilities. Homes on Union Electric Co. pay about 14.03¢/kWh, 1% more than the Missouri average.
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Electric companies serving Dardenne Prairie
| Utility | Type | Rate | Avg bill | Homes (statewide) | Outage min |
|---|---|---|---|---|---|
| Union Electric Co. | Investor-owned utility | 14.03¢ | $145 | 1.10M | 594 |
| Cuivre River Electric Co-op | Electric cooperative | 11.66¢ | $154 | 74K | 136 |
Power outages in Saint Charles County right now
Checking live outages…
Outage history in Saint Charles County
| 2024 | 2025 | |
|---|---|---|
| Outage minutes per customer | 71 | 141 |
| Days with outages | 45 | 40 |
| Most customers out at once | 6,834 (3.8%) | 9,269 (5.1%) |
| Worst day | 2024-10-16 | 2025-02-21 |
Outage minutes by month, 2025
More outage time than 2024 (71 min). Data: ORNL EAGLE-I county outage snapshots every 15 minutes, covering all utilities in the county.
Nearby cities
- O'Fallon 14.0¢
- Lake Saint Louis 14.0¢
- Cottleville 14.0¢
- Weldon Spring 14.0¢
- Saint Peters 14.0¢
- Saint Paul 14.0¢
- Wentzville 14.0¢
- Chesterfield 14.0¢
- Clarkson Valley 14.0¢
- Wildwood 14.0¢
ZIP codes: 63366, 63367, 63368
Frequently asked questions
What is the electricity rate in Dardenne Prairie?
Most homes in Dardenne Prairie get power from Union Electric Co., where residential customers pay an average of 14.03¢/kWh including all charges. The Missouri average is 13.95¢ and the U.S. average 17.99¢. Other utilities serving parts of Dardenne Prairie: Cuivre River Electric Co-op (11.66¢).
What is the average electric bill in Dardenne Prairie?
About $145 a month, based on 1,032 kWh a month (the average for Union Electric Co. customers) at 14.03¢/kWh. Homes with electric heat, pools or EVs pay more.
Who is the electric company in Dardenne Prairie, MO?
2 utilities serve Dardenne Prairie's ZIP codes: Union Electric Co., Cuivre River Electric Co-op. Which one serves you depends on your street address.
How often does the power go out in Dardenne Prairie?
In 2025, customers in Saint Charles County averaged 2 hr 21 min without power. Outages hit 40 days of the year, and the worst day was 2025-02-21, when 9,269 customers (5.1%) were out. Source: ORNL EAGLE-I.