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Tariff data · 2026-08-26
Puget Sound Energy Inc · WA

307 (Residential Time of Use Pilot) - Single Phase

When does peak hit on Puget Sound Energy Inc’s 307? Peak hits 7am–10am, 5pm–8pm in Oct–Mar; 5pm–8pm in Apr–Sep — on weekdays.

  • peak58.37¢
  • mid38.65¢
  • off-peak15.95¢
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 307 cost a year?

HouseholdUsesPer yearWorks out to
Apartment

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

4,866 kWh$1,20124.7¢ / kWh
Family home

Three or four people with central air conditioning

9,453 kWh$2,19623.2¢ / kWh
Home with an EV

Same house, plus an electric car charging overnight

13,103 kWh$2,77821.2¢ / 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
peak58.37¢7am–10am, 5pm–8pm, October–March
mid38.65¢5pm–8pm, April–September
off-peak15.95¢8pm–7am, 10am–5pm, midnight–midnight, October–March; 8pm–5pm, midnight–midnight, April–September

Plus a fixed charge of $7.49 per month.

Should you be on 307?

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 58.4¢ a kWh; at the best hour, 15.9¢ — 3.7× 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 7am to midnight is about $155 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 $90 a year in fixed fees. On the apartment above that is 7% of the whole bill; on the house with a car charging in it, 3%. 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 $221 in July and $138 in April — a $83 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 Puget Sound Energy’s other plans

Measured against the other residential plans this utility files, a family home lands 4th cheapest of 6. The cheapest option, 7 (Residential Service - Single Phase), would run about $239 a year less.

Against 7 (Residential Service - Three Phase), which looks like the plan you land on by default, this one comes out $113 more per year (5%). 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
2026-03-21

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.pse.com/-/media/Project/PSE/Portal/Rate-documents/summ_elec_prices_2026_03_21.pdf?rev=9728c0e290b04b3a8871d74f1541b1e9&sc_lang=en