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Tariff data · 2026-08-27
← Puget Sound Energy Inc · WA

327 (Residential Time of Use 3-tier Pilot) - Three Phase

When does peak hit on Puget Sound Energy Inc’s 327? Peak hits 7am–10am every day, all year.

  • peak55.48¢
  • mid17.84¢
  • off-peak12.68¢
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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 55.5¢ (Jan, 7am), the shortest is 12.7¢ (Jan, midnight) — 4.4× 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 327 cost a year?

This plan is open only to households that qualify for it — the tariff is named “Three Phase”. It is real and currently offered, but not to everyone, so we leave it out of the plan-to-plan comparisons; the figures below are what it would cost a household that does qualify.
HouseholdUsesA monthPer yearWorks out to
Apartment

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

4,866 kWh$113$1,35427.8¢ / kWh
Family home

Three or four people with central air conditioning

9,453 kWh$198$2,38125.2¢ / kWh
Home with an EV

Same house, plus an electric car charging overnight

13,103 kWh$241$2,89722.1¢ / 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
peak55.48¢7am–10am, 5pm–8pm, October–March
mid32.31¢7am–10am, 5pm–8pm, April–September
mid17.84¢10am–5pm, 8pm–11pm, midnight–midnight, October–March; midnight–midnight, April–September
mid17.33¢10am–5pm, 8pm–11pm, April–September
off-peak12.68¢11pm–7am

Plus a fixed charge of $17.99 per month.

Should you be on 327?

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 55.5¢ a kWh; at the best hour, 12.7¢ — 4.4× 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 $156 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 $216 a year in fixed fees. On the apartment above that is 16% of the whole bill; on the house with a car charging in it, 7%. 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 $243 in July and $156 in April — a $87 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 Puget Sound Energy plans

Who can be on Puget Sound Energy’s 327 (Residential Time of Use 3-tier Pilot) - Three Phase?

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

PSE launched a TOU pilot program on Oct. 1, 2023 to study the impacts of encouraging electric customers to shift when and how they use energy in their homes and businesses.

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
2026-03-21

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