Wisconsin · Municipal
Oconomowoc Utilities
14.17¢ per kWh, bundled, EIA-861 2025. Average bill $96.48 at 680.9 kWh a month, across 10,391 customers on that row.
Wisconsin averaged 18.08¢/kWh and $120.60 a month. The United States averaged 17.23¢/kWh and $150.68. State and national figures come from EIA's Average Bill file.
Revenue divided by sales, EIA-861 Sales to Ultimate Customers, 2025, released October 7, 2026. Texas wires utilities come from the Delivery Companies file. The price and bill use bundled service. Customer count: 10,391, the largest residential count across service types.
Estimate a bill
The figure below is this utility's 2025 EIA residential average.
2025 EIA average
$141.70
14.17¢/kWh × 1,000 kWh. Bundled residential average, EIA-861 2025. The customer charge is already folded into this average, so it stands beside a tariff total rather than being added to it.
Annual history
| Year | ¢/kWh | Avg. bill | Avg. kWh | Customers |
|---|---|---|---|---|
| 2015 | 12.45¢ | $89.45 | 718.6 | 8,199 |
| 2016 | 12.27¢ | $91.75 | 747.5 | 8,256 |
| 2017 | 12.46¢ | $87.87 | 705.3 | 8,435 |
| 2018 | 11.95¢ | $88.70 | 742.2 | 8,577 |
| 2019 | 12.11¢ | $85.75 | 708.1 | 8,775 |
| 2020 | 12.14¢ | $89.59 | 738.2 | 8,907 |
| 2021 | 12.53¢ | $92.14 | 735.1 | 9,051 |
| 2022 | 13.55¢ | $96.05 | 708.7 | 9,335 |
| 2023 | 13.53¢ | $91.47 | 676.3 | 9,796 |
| 2024 | 13.75¢ | $91.97 | 668.9 | 9,972 |
| 2025 | 14.17¢ | $96.48 | 680.9 | 10,391 |
EIA-861, 2015–2025, using the same service type as the 2025 figure. A blank year means that service was not in the file.
Counties
Waukesha.
EIA-861 Service Territory, 2025. A listed county is the county EIA recorded. It does not mean every address in the county is served. Open this utility in the bill calculator · Rate history tool