Skip to content
Tariff data · 2026-08-27

Wisconsin · Investor Owned · serves 189 ZIP codes

Wisconsin Public Service Corp rate plans

2 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.

What does Wisconsin Public Service cost at a normal month’s usage?

A household using 1,000 kWh a month pays about $1,731 a year on the cheapest of the 4 plans we can price here — Residential Seasonal Rg-1 — and $2,090 on the priciest. Same house, same wires.

Annual cost at Wisconsin Public Service by monthly usage
A month ofCheapest, a yearOn which planPriciest
500 kWh$873Residential Seasonal Rg-1$1,153
1,000 kWh$1,731Residential Seasonal Rg-1$2,090
2,000 kWh$3,449Residential Seasonal Rg-1$3,966

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 Public Service Corp files, and the bill lands anywhere between $1,567 and $1,692 a year. That $124 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.

1 of these 2 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.

How Wisconsin Public Service 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 Public Service comes in 3rd cheapest at about $1,567 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 $911 here against a state median of $945, and the same house with an electric car charging overnight about $2,089 against $2,211. Effective rate, fixed charge included, is 16.6¢ per kilowatt-hour for the family home.

Inside Wisconsin Public Service itself, the gap between its cheapest and dearest plan for that house is $124 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 →

When are Wisconsin Public Service’s peak hours?

Wisconsin Public Service’s peak hours are 4pm–8pm, October–April; 1pm–7pm, May–September on all 2 of its time-of-use plans. Everything outside those hours is off-peak, apart from a mid-priced shoulder period. Weekends are off-peak all day.

At peak, Residential Seasonal Three-tier Time-of-Use Rg5-OTOU charges 32.5¢ a kWh; off-peak it is 8.1¢ — 4.0× apart. These hours only matter on a time-of-use plan — the default plan, Residential Rg-1, charges one rate at every hour.

Peak hours and prices on each Wisconsin Public Service time-of-use plan
PlanPeak hoursPeakOff-peakWeekends
Residential Seasonal Three-tier Time-of-Use Rg5-OTOU4pm–8pm, October–April; 1pm–7pm, May–September32.5¢8.1¢off-peak all day
Residential Three-tier Time-of-Use Rg5-OTOU4pm–8pm, October–April; 1pm–7pm, May–September32.5¢8.1¢off-peak all day

On Residential Seasonal Three-tier Time-of-Use Rg5-OTOU, every kilowatt-hour a day you move from 4pm to midnight is worth about $89 a year in the month the gap is widest — an electric car or a water heater on a timer is the kind of load that actually moves. When to charge an electric car →

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 10,228 kWh a year. Compare it to the total on your bill and adjust until it’s close.

Same usage, different plan

$274a year

That is the gap between the cheapest plan you could be on — Residential Seasonal Rg-1 — and the priciest. Not by using less power. By being billed differently for the same power.

PlanPer yearVs best
Residential Seasonal Rg-1One rate, every hour of the year.$1,476—
Residential Seasonal Three-tier Time-of-Use Rg5-OTOUPeak hits 4pm–8pm in Oct–Apr, 1pm–7pm in May–Sep — on weekdays.$1,549+$73
Residential Rg-1One rate, every hour of the year.$1,677+$201
Residential Three-tier Time-of-Use Rg5-OTOUPeak hits 4pm–8pm in Oct–Apr, 1pm–7pm in May–Sep — on weekdays.$1,750+$274

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.