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Tariff data · 2026-08-26
Union Electric Co - (MO) · MO

1(M) Residential Overnight Saver Service

When does peak hit on Union Electric Co - (MO)’s 1? Peak hits 6am–10pm in Oct–May; 6am–10pm, 10pm–6am in Jun–Sep — every day.

  • peak16.95¢
  • mid7.22¢
  • off-peak6.33¢
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 1 cost a year?

HouseholdUsesPer yearWorks out to
Apartment

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

4,866 kWh$64813.3¢ / kWh
Family home

Three or four people with central air conditioning

9,453 kWh$1,22613.0¢ / kWh
Home with an EV

Same house, plus an electric car charging overnight

13,103 kWh$1,46811.2¢ / 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
peak16.95¢6am–10pm, June–September
mid9.88¢6am–10pm, October–May
mid7.22¢10pm–6am, June–September
off-peak6.33¢10pm–6am, October–May

Plus a fixed charge of $9 per month.

Should you be on 1?

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 16.9¢ a kWh; at the best hour, 7.2¢ — 2.3× 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 6am to midnight is about $36 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 $108 a year in fixed fees. On the apartment above that is 17% 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 $179 in July and $64 in February — a $115 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 Union Electric Co - (MO)’s other plans

Measured against the other residential plans this utility files, a family home lands 2nd cheapest of 6. The cheapest option, 1(M) Residential Ultimate Saver Service, would run about $169 a year less.

Against 1(M) Residential Anytime Service Rate, which looks like the plan you land on by default, this one comes out $14 less per year (1%). 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
2024-10-01

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.ameren.com/-/media/rates/files/missouri/uecsheet54rate1mres.ashx