States › Wisconsin › Wisconsin Power & Light Co
investor-owned utility · EIA utility 20856
Wisconsin Power & Light Co
Average price is revenue divided by sales for the sector and year; it is not a tariff rate. Reliability figures are as reported by utilities to EIA on Form 861 and may use different calculation methods. Annual figures: Form EIA-861 for 2024, final release. Monthly state figures run to July 2026.
Wisconsin Power & Light Co serves 437,211 residential customers in Wisconsin as an investor-owned utility, according to its 2024 Form EIA-861 filing, with a service territory that touches 35 counties.
Its average residential price that year was 16.89¢ per kilowatthour, about the same as the Wisconsin average of 17.18¢ and about the same as the US average of 16.48¢. The figure is residential revenue divided by residential sales, so it folds in fixed charges, riders and every rate schedule the utility bills under.
That works out to an average residential bill of $113.70 a month on average use of 673 kWh a month. Across Wisconsin the average bill was $110.87 on 645 kWh, so a bill gap reflects how much power households use as well as what each kilowatthour costs.
For reliability it reported a SAIDI of 153.6 minutes per customer with major event days included and 67.5 minutes with them excluded, calculated under another method. The median among Wisconsin utilities reporting was 51.0 minutes with major event days; this utility's figure is 201% above that median.
The average price is up 23.6% on 2019, against up 21.2% for Wisconsin as a whole, and up 4.6% on 2023. EIA's early release for 2025, which has not been fully edited, shows 18.47¢.
Compared with Wisconsin, the US and other investor-owned utilities
| Measure, 2024 | This utility | Investor-owned utilities, US median | Wisconsin | United States |
|---|---|---|---|---|
| Average residential price per kWh | 16.89¢ | 16.17¢ | 17.18¢ | 16.48¢ |
| Average monthly residential bill | $113.70 | $131.47 | $110.87 | $142.26 |
| Average monthly use, kWh | 673 | 787 | 645 | 863 |
| Residential price change, 1 year | +4.6% | — | +1.8% | +3.0% |
| Residential price change, 5 years | +23.6% | — | +21.2% | +26.7% |
| SAIDI, all events (minutes) | 153.6 | 278.7 | 51.0 median | 184.5 median |
| SAIDI, without major event days | 67.5 | 106.5 | 32.8 median | 99.8 median |
State and US prices, bills and use are EIA's own averages over every customer. The ownership column and the reliability columns are medians across utilities with at least 1,000 residential customers, computed on this site from the final 2024 file. Among the 12 filings by investor-owned utilities in Wisconsin, the median price was 16.23¢. In Wisconsin this utility's price ranks 6 of 65, counting from the highest.
Average price by year
Wisconsin Power & Light CoWisconsin averageUS average
Year by year
| Year | ¢ per kWh | Wisconsin ¢ | Monthly bill | kWh a month | Residential customers | All sales |
|---|---|---|---|---|---|---|
| 2025 early release | 18.47¢ | 18.16¢ | $128.22 | 694 | 440,746 | 11.3 TWh |
| 2024 | 16.89¢ | 17.18¢ | $113.70 | 673 | 437,211 | 11 TWh |
| 2023 | 16.14¢ | 16.88¢ | $111.48 | 691 | 433,061 | 11.1 TWh |
| 2022 | 15.18¢ | 15.62¢ | $108.56 | 715 | 429,581 | 11.2 TWh |
| 2021 | 13.49¢ | 14.52¢ | $97.32 | 721 | 424,363 | 11.2 TWh |
| 2020 | 13.37¢ | 14.32¢ | $97.85 | 732 | 418,151 | 10.7 TWh |
| 2019 | 13.66¢ | 14.18¢ | $98.75 | 723 | 414,268 | 11 TWh |
| 2018 | 13.09¢ | 14.02¢ | $95.38 | 728 | 413,571 | 11.1 TWh |
| 2017 | 13.86¢ | 14.35¢ | $95.51 | 689 | 410,620 | 10.8 TWh |
| 2016 | 13.20¢ | 14.07¢ | $95.38 | 723 | 405,804 | 10.9 TWh |
| 2015 | 12.91¢ | 14.11¢ | $90.97 | 704 | 405,526 | 10.6 TWh |
| 2014 | 12.40¢ | 13.67¢ | $90.37 | 729 | 403,918 | 10.6 TWh |
| 2013 | 12.24¢ | 13.55¢ | $90.11 | 736 | 402,086 | 10.4 TWh |
Bundled residential service only in the price, bill and use columns. Bill = residential revenue ÷ customers ÷ 12; use = residential sales ÷ customers ÷ 12. EIA describes its early release as not fully edited; it is shown for this utility alone and enters no average, median or rank on this site.
Month by month
Wisconsin Power & Light CoWisconsin average
Sales by sector, 2024
| Sector | Customers | Sales | Share of sales | Revenue | ¢ per kWh, bundled |
|---|---|---|---|---|---|
| Residential | 437,211 | 3.5 TWh | 32% | $596,530,000 | 16.89¢ |
| Commercial | 63,281 | 2.4 TWh | 21% | $302,132,000 | 12.83¢ |
| Industrial | 1,152 | 5.1 TWh | 46% | $455,118,000 | 8.94¢ |
Customers, sales and revenue count every service type the utility reported (bundled, energy-only and delivery-only). The price column uses bundled service alone, because part-bill revenue would understate it. Sources of energy: 18.8 TWh in total, of which 83.9% was its own net generation and 3 TWh was bought wholesale; summer peak demand 2,805 MW.
Reliability
Minutes of sustained interruption per customer in 2024, as the utility reported them under another method. SAIFI: 0.99 interruptions per customer with major event days, 0.78 without; CAIDI 155.1 minutes per interruption. EIA's Wisconsin total across all reporting utilities was 266.1 minutes with major event days and 91.3 without. Major event days are storms and similar events that a utility's chosen method sets apart; methods differ, so treat comparisons as approximate. What SAIDI and SAIFI mean.
| Year | SAIDI, all events | SAIDI, no major events | SAIFI, all events | SAIFI, no major events | Method |
|---|---|---|---|---|---|
| 2025 early release | 96.1 | 75.4 | 0.79 | 0.74 | Other |
| 2024 | 153.6 | 67.5 | 0.99 | 0.78 | Other |
| 2023 | 106.5 | 56.7 | 0.78 | 0.66 | Other |
| 2022 | 145.8 | 82.8 | 0.87 | 0.74 | Other |
| 2021 | 112.5 | 80.8 | 0.74 | 0.68 | Other |
| 2020 | 92.8 | 73.6 | 0.71 | 0.65 | Other |
| 2019 | 187.0 | 100.6 | 0.95 | 0.86 | Other |
| 2018 | 157.2 | 93.9 | 1.03 | 0.94 | Other |
| 2017 | 132.8 | 105.8 | 0.82 | 0.75 | Other |
| 2016 | 81.1 | 80.8 | 0.69 | 0.69 | Other |
| 2015 | 87.0 | 64.5 | 0.63 | 0.59 | Other |
| 2014 | 102.0 | 54.0 | 0.66 | 0.54 | Other |
| 2013 | 93.0 | 72.0 | 0.63 | 0.60 | Other |
Generation at plants it operates, 2025
- Natural gas 43.3% 8.6 TWh
- Coal 39.9% 7.9 TWh
- Solar 10.4% 2.1 TWh
- Wind 5.3% 1.1 TWh
- Hydro 1% 202.1 GWh
Net generation of 19.9 TWh at power plants this utility operates, from Form EIA-923. It is not the mix delivered to customers: utilities also buy power wholesale (3 TWh in 2024), sell generation to others and may co-own plants that another company operates.
Counties in its service territory
- Adams County
- Calumet County
- Columbia County
- Crawford County
- Dane County
- Dodge County
- Fond du Lac County
- Grant County
- Green County
- Green Lake County
- Iowa County
- Jackson County
- Jefferson County
- Juneau County
- Kenosha County
- Lafayette County
- Langlade County
- Manitowoc County
- Marathon County
- Marquette County
- Menominee County
- Monroe County
- Oconto County
- Portage County
- Richland County
- Rock County
- Sauk County
- Shawano County
- Sheboygan County
- Vernon County
- Walworth County
- Waupaca County
- Waushara County
- Winnebago County
- Wood County
Counties the utility listed on Form EIA-861 for 2024. Listing a county does not mean the utility serves all of it.
Other utilities in Wisconsin
| Utility | Ownership | Residential customers | ¢ per kWh | Monthly bill | SAIDI, all events | SAIDI, no major events |
|---|---|---|---|---|---|---|
| Wisconsin Public Service Corp | Investor-owned | 411,775 | 16.23¢ | $96.60 | 465.0 | 95.0 |
| Northern States Power Co | Investor-owned | 228,153 | 15.80¢ | $108.49 | 207.2 | 122.1 |
| Wisconsin Electric Power Co | Investor-owned | 1,048,148 | 19.23¢ | $120.21 | 296.0 | 109.0 |
| Madison Gas & Electric Co | Investor-owned | 147,501 | 20.34¢ | $98.89 | 278.6 | 41.6 |
| Northwestern Wisconsin Elec Co | Investor-owned | 13,078 | 13.84¢ | $75.10 | — | — |
| Superior Water and Light Co | Investor-owned | 13,072 | 15.44¢ | $84.26 | 22.4 | 7.2 |
| Dahlberg Light & Power Co | Investor-owned | 10,939 | 12.62¢ | $69.59 | — | — |
| North Central Power Co Inc | Investor-owned | 4,991 | 15.73¢ | $66.65 | — | — |
All Wisconsin utilities · Investor-owned utilities nationwide
Questions and answers
How much does electricity cost from Wisconsin Power & Light Co?
Residential customers paid an average of 16.89¢ per kilowatthour in 2024. EIA derives this by dividing residential revenue by residential sales; it is an average across all rate schedules and charges, not a tariff rate.
How does that compare with Wisconsin?
The Wisconsin average residential price in 2024 was 17.18¢ and the US average 16.48¢; Wisconsin Power & Light Co was about the same as the state figure. Among 65 utility filings with a bundled residential price in Wisconsin, it had the 6th highest.
What is the average Wisconsin Power & Light Co bill?
$113.70 a month in 2024, on average residential use of 673 kWh a month (annual revenue and sales divided by customers and by twelve). The Wisconsin average was $110.87 on 645 kWh.
How reliable is Wisconsin Power & Light Co service?
It reported 153.6 minutes of interruption per customer (SAIDI) including major event days and 67.5 minutes excluding them, with 0.99 interruptions per customer (SAIFI) in 2024. Utilities calculate these under differing methods, so comparisons are approximate.
Is the Wisconsin Power & Light Co price rising?
The average residential price was up 4.6% in 2024 compared with 2023 and up 23.6% compared with 2019. EIA's early, not fully edited release for 2025 shows 18.47¢.
Which counties does Wisconsin Power & Light Co serve?
Its Form EIA-861 service territory lists 35 counties, including Adams County, WI, Calumet County, WI, Columbia County, WI, Crawford County, WI, Dane County, WI and Dodge County, WI. A county can appear in several utilities' territories.
Provenance
Source: U.S. Energy Information Administration. Annual figures are from Form EIA-861 (sales to ultimate customers, reliability, operational data and service territory files), final release for 2024, respondent "Wisconsin Power & Light Co", utility number 20856; the 2025 row is from EIA's early release. Monthly utility figures are from the Form EIA-861M sample. State and US averages are from the Form EIA-861M sales and revenue workbook, published through July 2026. Generation by fuel is from Form EIA-923, 2025 final. All are US government works in the public domain. Page built 1 Oct 2026. Errors in processing are corrected at the next build; see corrections. For tariffs and rate schedules, consult the utility or the state utility commission.