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Tariff data · 2026-08-27
← Wisconsin Power & Light Co · WI

Residential Service Demand Rd-1 (Three Phase)

When does peak hit on Wisconsin Power & Light Co’s Residential Service Demand Rd-1? Peak hits 5pm–9pm in Dec–Feb, 11am–7pm in Jun–Aug — on weekdays.

  • peak25.50¢
  • mid17.50¢
  • off-peak8.70¢
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Every hour of the year at this rate, drawn to scale — 24 hours across, 12 months deep, height is ¢/kWh. The tallest bar is 25.5¢ (Jan, 5pm), the shortest is 8.7¢ (Jan, midnight) — 2.9× apart.
Weekdays
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Weekends
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Weekends are off-peak all day — the cheapest time to run anything you can schedule.

What does Residential Service Demand Rd-1 cost a year?

HouseholdUsesA monthPer yearWorks out to
Apartment

One or two people, no central air, no electric heat

4,866 kWh$82$99020.3¢ / kWh
Family home

Three or four people with central air conditioning

9,453 kWh$142$1,70518.0¢ / kWh
Home with an EV

Same house, plus an electric car charging overnight

13,103 kWh$169$2,02215.4¢ / kWh

Estimates, not quotes. We run three made-up but realistic households through this tariff hour by hour for a full year — including the way air conditioning loads the afternoon and an EV loads the small hours. Your own bill depends on when you actually use electricity, which is exactly the thing a per-kWh number hides.

What you actually pay

PeriodRateApplies when
peak25.50¢5pm–9pm, December–February; 11am–7pm, June–August
mid17.50¢6am–5pm, 9pm–11pm, December–February; 6am–11pm, March–May, September–November; 6am–11am, 7pm–11pm, June–August
off-peak8.70¢11pm–6am, midnight–midnight

Plus a fixed charge of $0.7398 per day — so longer months cost more before you use a single kWh.

This plan also bills a demand charge based on your highest single hour of usage. We don’t price that yet, so treat any total here as incomplete.

Should you be on Residential Service Demand Rd-1?

This plan bills a demand charge on top of the per-kWh rates: a fee tied to your single highest hour of the month. Two homes using the same total electricity can pay very different amounts if one of them runs the dryer, the oven, and the car charger at the same moment. We do not price demand charges yet, so treat every dollar figure on this page as a floor, not a total.

Before a single kilowatt-hour moves, this plan charges $270 a year in fixed fees. On the apartment above that is 27% of the whole bill; on the house with a car charging in it, 13%. Fixed charges are invisible in a cents-per-kWh comparison and they punish small users hardest — if you use very little electricity, the headline rate is the least important number on this page.

Expect the bill to move with the calendar. The same family home costs about $211 in July and $112 in November — a $99 spread driven by heating and cooling far more than by anything you chose. Budget against the July figure, not the average, and a summer bill stops being a surprise.

Other Wisconsin Power & Light plans

Who can be on Wisconsin Power & Light’s Residential Service Demand Rd-1 (Three Phase)?

Eligibility is not our judgement — it is written into the tariff Wisconsin Power & Light filed. This is what that document says:

This schedule is available to all residential customers who use single or threephase service and have Measured Maximum Demands of 75 kW or less for at least 8 out of 12 months and annual energy usage of 250,000 kWh or less. For new customers, the company shall, at its discretion, determine the customer�s demand limits and energy usage until review of 12 month�s service.

Shortened — the clause runs longer in the filing. Quoted from the filed tariff. Your utility decides eligibility, not us; check with them before you switch.

If this is new to you

Where this comes from

Effective
2025-01-01

the date this tariff took effect

Covers
delivery + supply

the ZIP-code service map lists this territory as bundled, so the utility sells delivery and supply together

Enrollment
open to new customers

Tariff document: https://www.alliantenergy.com/-/media/alliant/documents/accountandbilling/ratesandtariffs/wisconsinelectricrates/wisconsinelectricscheduleofrates.pdf?la=en&hash=2CCB0D1DC4EA7D294D0DE4F87EAC87C9