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Tariff data · 2026-08-26
Avista Corp · ID

12 Residential and Farm General Service - Three Phase

When does peak hit on Avista Corp’s 12 Residential and Farm General Service - Three Phase? One rate, every hour of the year.

  • off-peak14.79¢
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 12 Residential and Farm General Service - Three Phase cost a year?

This does not look like an ordinary household tariff — the tariff is named “General Service”. The utility files it under its residential sector, but the estimates below assume a normal home, so they may not describe what this service is for. We leave it out of the plan-to-plan comparisons for that reason.
HouseholdUsesPer yearWorks out to
Apartment

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

4,866 kWh$1,08022.2¢ / kWh
Family home

Three or four people with central air conditioning

9,453 kWh$1,75818.6¢ / kWh
Home with an EV

Same house, plus an electric car charging overnight

13,103 kWh$2,29817.5¢ / 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
off-peak14.79¢ up to 3650 kWh11.11¢midnight–midnight

Plus a fixed charge of $30 per month.

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 12 Residential and Farm General Service - Three Phase?

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 $360 a year in fixed fees. On the apartment above that is 33% of the whole bill; on the house with a car charging in it, 16%. 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 $192 in July and $118 in February — a $74 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.

If this is new to you

Where this comes from

Effective
2026-01-01

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://www.myavista.com/-/media/myavista/content-documents/our-rates-and-tariffs/wa/wa_012.pdf