Union Electric Co bill decoder
Union sells under this tariff at 11.97¢ per kWh all-in, -1.52¢ against the Missouri average of 13.49¢. The $9.00 fixed charge is 8% of the bill.
Union at 1,000 kWh, line by line
Union bills $9.00 a month, 8% of the $119.66 total at 1,000 kWh. Union tiers its energy: the first 750 kWh cost 10.118¢, then 7.048¢ above 750 kWh (-30%), so 250 of 1,000 kWh pay the top rate.
Union: what the tariff charges
| Line | Charged | Amount |
|---|---|---|
| Customer charge | Fixed, once a month | $9.00 |
| Energy, Oct to May, tier 1 | First 750 kWh | 10.118¢ per kWh |
| Energy, Oct to May, tier 2 | Over 750 kWh | 7.048¢ per kWh |
| Energy, Jun to Sep | Every kWh | 14.498¢ per kWh |
Union at 500, 1,000 and 2,000 kWh
| kWh | Total | ¢/kWh | Fixed | Energy | MO avg |
|---|---|---|---|---|---|
| 500 | $66.89 | 13.38 | $9.00 | $57.89 | $67.45 |
| 989 (average home) | $118.61 | 11.99 | $9.00 | $109.61 | $133.42 |
| 1,000 | $119.66 | 11.97 | $9.00 | $110.66 | $134.90 |
| 2,000 | $214.98 | 10.75 | $9.00 | $205.98 | $269.80 |
How the Union total climbs
$37.95 at 250 kWh becomes $310.29 at 3,000 kWh, 8.2 times the bill for 12 times the power.
Union total in dollars, by kWh
- 38250
- 67500
- 96750
- 1201,000
- 1671,500
- 2152,000
- 3103,000
Check your Union bill
Union: tariff against EIA
EIA-861 puts the 2024 home price at 12.56¢ for Union, across 1,095,619 home accounts using 989 kWh a month. The tariff gives 11.99¢ ($118.60). The +0.57¢ gap, about $5.63 a month, is riders, other plans and rate changes.
Other Union residential plans
3 more Union plans fit the model; the decoder prices each.
| Plan | Since | Type | 1,000 kWh | Fixed |
|---|---|---|---|---|
| 1(M) Residential Overnight Saver Service | 2024-10-01 | time of use | $112.65 | $9.00 |
| 1(M) Residential Grandfathered Optional TOD (Time Of Day) | 2024-09-30 | time of use | $114.93 | $9.00 |
| 1(M) Residential Smart Saver Service | 2024-09-30 | time of use | $123.30 | $9.00 |
Union: sources and limits
- Tariff: 1(M) Residential Anytime Service Rate, effective 2024-09-30, record 67744be6b5f9d561220eced9, updated 2024-12-31; decode_tariffs.csv.
- Tariff sheet cited by the record: https://www.ameren.com/-/media/rates/files/missouri/uecsheet54rate1mres.ashx.
- Data: OpenEI URDB, EIA-861, EIA state data.
Union: taxes, riders and adjustments sit outside these rates.
Keep going
- All bill decoders
- Bill terms
- Union profile
- Missouri prices
- Time-of-use plans
Questions
What is the monthly fixed charge at Union?
$9.00 a month however little you use. At 500 kWh the $66.89 total is 13% fixed.
What does Union charge for 1,000 kWh?
The tariff gives $119.66 (11.97¢ a kWh): energy $110.66, fixed $9.00. Add taxes and riders.
What makes a Union bill run higher than the tariff?
At 989 kWh the tariff gives 11.99¢ against 12.56¢ in EIA's 2024 average, +0.57¢ apart. Riders, fees and other plans sit in that gap.
What does the last kWh cost at Union?
Going from 1,000 to 2,000 kWh adds $95.31, or 9.53¢ per extra kWh, against 10.55¢ for 500 to 1,000 kWh.
Is the Union tariff on this page current?
It dates from 2024-09-30, 19 months before the April 2026 snapshot. Union may have filed newer rates since.
What is a typical Union monthly bill on this tariff?
At the 2024 average of 989 kWh (EIA-861) it is $118.60.