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Tariff data · 2026-08-27

Wisconsin · Investor Owned · serves 320 ZIP codes

Wisconsin Power & Light Co rate plans

4 residential plans are currently open to new customers that we can price side by side. Some charge different prices depending on the hour — which is where most of the savings hide.

Looking for when the expensive hours are? Wisconsin Power & Light’s peak hours, plan by plan →

What does Wisconsin Power & Light cost at a normal month’s usage?

A household using 1,000 kWh a month pays about $2,152 a year on the cheapest of the 4 plans we can price here — Residential Service Rg-1 (Single Phase) — and $2,282 on the priciest. Same house, same wires.

Annual cost at Wisconsin Power & Light by monthly usage
A month ofCheapest, a yearOn which planPriciest
500 kWh$1,166Residential Service Rg-1 (Single Phase)$1,276
1,000 kWh$2,152Residential Service Rg-1 (Single Phase)$2,282
2,000 kWh$4,124Residential Service Rg-1 (Single Phase)$4,294

The same plan is cheapest at every level of use here, so the answer does not turn on how much you use. Estimates from the filed tariff, priced hour by hour on a household with central air — not a quote.

How much does the plan you pick actually matter here?

Run the same three-bedroom house with central air through every plan Wisconsin Power & Light Co files, and the bill lands anywhere between $1,733 and $1,855 a year. That $122 spread is not a difference in electricity — it is the same kilowatt-hours, from the same wires, priced under different rules. Nobody sends you a letter when you are on the wrong side of it.

2 of these 4 plans price by the hour. Those are the ones where moving laundry, dishes, or car charging into the cheap window changes the bill; on the rest, the clock is irrelevant and only the total matters. Which camp you belong in is the first question worth settling, because it decides whether shifting your day is worth anything at all.

Watch the fixed charges too. Across these plans they run from $180 to $270 a year before a single kilowatt-hour is counted. For a small household that difference alone can outweigh the per-kWh price, which is why comparing cents per kilowatt-hour on its own quietly misleads.

How Wisconsin Power & Light compares across Wisconsin

Run the same three-bedroom house with central air through its default plan at each of the 6 Wisconsin utilities we cover, and Wisconsin Power & Light comes in 4th cheapest at about $1,733 a year; the state median is $1,650. The range runs from $1,209 at Superior Water and Light to $2,032 at Wisconsin Electric Power, and since the utility is set by the address, the part of that gap you can act on is the plan, not the company.

The other two households tell the same story in different sizes: a small apartment pays about $979 here against a state median of $945, and the same house with an electric car charging overnight about $2,332 against $2,211. Effective rate, fixed charge included, is 18.3¢ per kilowatt-hour for the family home.

Inside Wisconsin Power & Light itself, the gap between its cheapest and dearest plan for that house is $122 a year — less than the $823 between Wisconsin's cheapest and dearest utilities. Here the address decides most of the bill; the plan decides the rest.

Every Wisconsin utility we cover, priced for the same three households →

Which plan would cost you least?

No bill upload, no sign-up. Tell us roughly what a month costs you and what runs on electricity — we price every plan against the same household and show you the gap.

Start from a household like yours
Then correct anything below that doesn’t match.
What else runs on electricity

That adds up to 8,584 kWh a year. Compare it to the total on your bill and adjust until it’s close.

drag to turn
back row — kWh usedfront row — $ cost
A weekday in January on Residential Service Demand Rd-1 (Single Phase) — the back row is how much you use each hour, the front row is what that hour costs. Both are colored by the price at that hour. $4.22 a day, and 6pm alone accounts for $0.43 of it — the same power at 12am would cost $0.15. Rows are scaled separately; kWh and dollars are not the same units.

Same usage, different plan

$290a year

That is the gap between the cheapest plan you could be on — Residential Service Demand Rd-1 (Single Phase) — and the priciest. Not by using less power. By being billed differently for the same power.

PlanPer yearVs best
Residential Service Demand Rd-1 (Single Phase)Peak hits 5pm–9pm in Dec–Feb, 11am–7pm in Jun–Aug — on weekdays.$1,389—
Residential Service Demand Rd-1 (Three Phase)Peak hits 5pm–9pm in Dec–Feb, 11am–7pm in Jun–Aug — on weekdays.$1,539+$150
Residential Service Rg-1 (Single Phase)One rate, every hour of the year.$1,589+$200
Residential Time-of-Use Rg-5 (Single Phase)Peak hits 5pm–9pm in Dec–Feb, 11am–7pm in Jun–Aug — on weekdays.$1,609+$220
Residential Time-of-Use Rg-5 (Three Phase)Peak hits 5pm–9pm in Dec–Feb, 11am–7pm in Jun–Aug — on weekdays.$1,673+$284
Residential Service Rg-1 (Three Phase)One rate, every hour of the year.$1,679+$290

An estimate, not a quote. Supply charges move month to month, and your real usage pattern is not exactly this one. What it does show reliably is the gap between plans — both are priced off the same assumptions.

Before you switch anything

Every plan, in detail

Hour-by-hour schedules, tier thresholds, and the tariff each one comes from.