Electric utility · EIA utility id 20856
Wisconsin Power & Light Co
- Ownership, as EIA reports it
- Investor Owned
- States served
- WI
- Customers in 2025
- 505,706
- Sales in 2025
- 11,264,418 MWh
- Revenue in 2025
- $1,511,090,000
U.S. Energy Information Administration · Annual Electric Power Industry Report (Form EIA-861) · data for 2025 · as of Oct 7, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0 May be out of date. The next release was due by Oct 7, 2027. Last checked for an update: Oct 31, 2026.
What it sells and charges
Full service (energy and delivery)
| Sector | Customers | Sales (MWh) | Revenue | Average price (cents per kWh) |
|---|---|---|---|---|
| Residential | 440,746 | 3,671,311 | $678,136,000 | 18.47 |
| Commercial | 63,796 | 2,421,156 | $329,953,000 | 13.63 |
| Industrial | 1,164 | 5,171,951 | $503,001,000 | 9.73 |
Its average price is 2% above the state average for residential customers (18.08 cents per kWh in WI).
How we got this
$678,136,000 residential revenue ÷ 3,671,311,000 kWh residential sales = 18.47 cents per kWh
Average price is revenue divided by sales, for full-service customers only. It averages every rate and every month, so one household's price can differ. State averages count revenue from every kind of service and sales only once, as EIA does.
Trends, 2021 to 2025
Trend table
| Year | Residential average price (cents per kWh) | Customers |
|---|---|---|
| 2021 | 13.49 | 487,076 |
| 2022 | 15.18 | 492,811 |
| 2023 | 16.14 | 497,000 |
| 2024 | 16.89 | 501,644 |
| 2025 | 18.47 | 505,706 |
U.S. Energy Information Administration · Annual Electric Power Industry Report (Form EIA-861), 2021 to 2025 · data for 2021-2025 · as of Oct 7, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0 May be out of date. The next release was due by Oct 7, 2027. Last checked for an update: Oct 31, 2026.
Annual peak demand
Not reported to FERC. Only utilities that plan or balance their own system file Form 714.
Its balancing authority, MISO, peaked at 121,059 MW in 2025. That is the balancing authority's peak, not this utility's.
Catalyst Cooperative (PUDL), from FERC Form 714 · Annual peak demand by planning area (FERC Form 714, through PUDL) · data for 2006-2025 · as of Oct 14, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0 May be out of date. The next release was due by Jan 14, 2027. Last checked for an update: Oct 31, 2026.
Reliability
| State | Standard | SAIDI with major events (minutes) | SAIFI with major events | SAIDI without major events (minutes) | SAIFI without major events |
|---|---|---|---|---|---|
| WI | The utility's own | 96.05 | 0.79 | 75.44 | 0.74 |
SAIDI is the average minutes without power per customer in the year; SAIFI is how many outages the average customer had. Major event days are storms and similar rare days, counted with and without.
Generation it operates
| Fuel | Capacity | Net generation in 2025 |
|---|---|---|
| Natural gas | 2,497.5 MW | 8,627,337 MWh |
| Subbituminous coal | 1,525.7 MW | 7,944,175 MWh |
| Solar | 1,104.2 MW | 2,072,731 MWh |
| Wind | 421.2 MW | 1,051,407 MWh |
| Batteries | 183.6 MW | -617 MWh |
| Hydro | 43.1 MW | 202,098 MWh |
| Distillate fuel oil | 7,950 MWh |
This is generation the utility operates, not the full mix of power it buys. EIA does not publish that mix for each utility.
Plants it operates
- Kossuth · IA · 152.2 MW
- Bent Tree Wind Farm Phase 1 · MN · 201.3 MW
- Edgewater · WI · 413.7 MW
- Kilbourn · WI · 9.7 MW
- Prairie Du Sac · WI · 33.4 MW
- South Fond Du Lac · WI · 381.6 MW
- Columbia (WI) · WI · 1,112 MW
- Alliant Energy Neenah · WI · 371 MW
- Riverside Energy Center · WI · 674.9 MW
- Sheboygan Falls · WI · 346.8 MW
- Cedar Ridge · WI · 67.7 MW
- West Riverside Energy Center · WI · 727.6 MW
- Cassville Solar · WI · 50 MW
- Springfield Solar (WI) · WI · 100 MW
- Albany Solar (WI) · WI · 50 MW
- Paddock Solar · WI · 65 MW
- Wautoma Solar · WI · 99 MW
- Beaver Dam Solar · WI · 50 MW
- Grant County · WI · 300 MW
- Onion River · WI · 150 MW
- Bear Creek (WI) · WI · 50 MW
- North Rock · WI · 50 MW
- Wood County · WI · 225 MW
- Crawfish River · WI · 75 MW
- Portage Industrial Battery · WI · 5 MW
- Boaz Microgrid Battery · WI · 3.6 MW
- City of Sheboygan Solar · WI · 0.9 MW
- Kohler Solar · WI · 2.3 MW
- Nortera Customer Hosted Solar · WI · 1.6 MW
- UW Kegonsa Customer Hosted Solar · WI · 2.3 MW
- Rock County Customer Hosted Solar · WI · 1.4 MW
- Janesville Community Solar · WI · 2.3 MW
- McFarland Schools Customer Hosted · WI · 0 MW
- Vienna Walbec Customer Hosted · WI · 0 MW
Published rates
43 rates in the OpenEI database, newest updated Sep 2, 2025.
OpenEI (National Laboratory of the Rockies), with rates entered by contributors · U.S. Utility Rate Database (OpenEI) · data for 2026-10 · as of Oct 30, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0 May be out of date. The next release was due by Nov 30, 2026. Last checked for an update: Oct 31, 2026.