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Tariff data · 2026-08-27
← PacifiCorp · WY

Schedule 4T - Residential Time of Use

When does peak hit on PacifiCorp’s Schedule 4T - Residential Time of Use? Peak hits 5pm–9pm every day, all year.

  • peak28.91¢
  • off-peak10.85¢
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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 28.9¢ (Jan, 5pm), the shortest is 10.8¢ (Jan, midnight) — 2.7× 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

What does Schedule 4T - Residential Time of Use cost a year?

HouseholdUsesA monthPer yearWorks out to
Apartment

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

4,866 kWh$78$93719.3¢ / kWh
Family home

Three or four people with central air conditioning

9,453 kWh$138$1,65717.5¢ / kWh
Home with an EV

Same house, plus an electric car charging overnight

13,103 kWh$171$2,05315.7¢ / 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
peak28.91¢5pm–9pm
off-peak10.85¢9pm–5pm

Plus a fixed charge of $14 per month.

Should you be on Schedule 4T - Residential Time of Use?

This is a time-of-use plan, which means the clock decides your bill as much as the meter does. At the worst hour you pay 28.9¢ a kWh; at the best hour, 10.8¢ — 2.7× apart for identical electricity.

That gap is worth real money only if you can move load into it. Every kilowatt-hour a day you shift from 5pm to midnight is about $66 a year. A dishwasher run is roughly 1.5 kWh; an EV commute charge is 8 to 12. If your day is fixed — you are home in the evening and the air conditioner runs when it runs — a plan like this costs you more, not less.

Before a single kilowatt-hour moves, this plan charges $168 a year in fixed fees. On the apartment above that is 18% of the whole bill; on the house with a car charging in it, 8%. 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 $186 in July and $108 in February — a $78 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.

How it compares to PacifiCorp’s other plans

Measured against the other residential plans this utility files, a family home lands 14th cheapest of 14. The cheapest option, Schedule 36 - Residential Service Optional TOD, would run about $507 a year less.

Against Schedule 4 - Residential (Single Phase), which looks like the plan you land on by default, this one comes out $146 more per year (10%). We infer the default from the tariff structure rather than a flag in the data, so confirm it against your own bill before you switch.

Other PacifiCorp plans

All 16 PacifiCorp plans →

Who can be on PacifiCorp’s Schedule 4T - Residential Time of Use?

Eligibility is not our judgement — it is written into the tariff PacifiCorp filed. This is what that document says:

To single-family Residential Consumers only for all single-phase and three-phase electric requirements when all service is supplied at one point of delivery.

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
2024-05-02

the date this tariff took effect

Covers
delivery + supply

delivery, supply, and applicable riders

Enrollment
open to new customers

Tariff document: https://www.pacificpower.net/content/dam/pcorp/documents/en/pacificpower/rates-regulation/oregon/tariffs/Oregon_Price_Summary.pdf