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Tariff data · 2026-08-26
Idaho Power Co · ID

Schedule 5 - Residential Time-of-Day

When does peak hit on Idaho Power Co’s Schedule 5 - Residential Time-of-Day? Peak hits 8pm–6am, 9am–5pm, 6am–9am, 5pm–8pm in Oct–May; 3pm–7pm, 7pm–11pm in Jun–Aug; 3pm–7pm, 7pm–11pm in Sep — every day.

  • peak26.35¢
  • mid9.78¢
  • off-peak7.36¢
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 5 - Residential Time-of-Day cost a year?

HouseholdUsesPer yearWorks out to
Apartment

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

4,866 kWh$72214.8¢ / kWh
Family home

Three or four people with central air conditioning

9,453 kWh$1,23013.0¢ / kWh
Home with an EV

Same house, plus an electric car charging overnight

13,103 kWh$1,55911.9¢ / 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
peak26.35¢7pm–11pm, June–September
mid14.16¢6am–9am, 5pm–8pm, October–May
mid13.69¢3pm–7pm, June–September
mid9.78¢8pm–6am, 9am–5pm, midnight–midnight, October–May; midnight–midnight, September
off-peak7.36¢11pm–3pm, midnight–midnight, June–August; 11pm–3pm, September

Plus a fixed charge of $15 per month.

Should you be on Schedule 5 - Residential Time-of-Day?

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 26.4¢ a kWh; at the best hour, 7.4¢ — 3.6× 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 7pm to midnight is about $69 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 $180 a year in fixed fees. On the apartment above that is 25% of the whole bill; on the house with a car charging in it, 12%. 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 $140 in July and $80 in February — a $60 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 Idaho Power’s other plans

Measured against the other residential plans this utility files, a family home lands 1st cheapest of 3 — nothing else here beats it for that household.

Against Schedule 1 - Residential Service, which looks like the plan you land on by default, this one comes out $485 less per year (28%). 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.

If this is new to you

Where this comes from

Effective
2025-02-01

the date this tariff took effect

Covers
delivery + supply

우편번호 매핑에서 이 지역 서비스 종류가 Bundled — 배달과 공급을 함께 판다

Enrollment
open to new customers

Tariff document: https://docs.idahopower.com/pdfs/aboutus/ratesregulatory/tariffs/264.pdf