How Ameren Missouri’s plans work
1(M) Anytime (Anytime Users). In July every kWh costs about 16.6¢, whatever the month's use. Fixed charge: $9.19 a month.
1(M) Evening/Morning (Evening/Morning Savers). Peak 9 am–9 pm on July weekdays; 12 of 24 hours carry the top price of 16.8¢. The cheapest July weekday hour costs 16.2¢, so moving 1 kWh out of the top hours saves 0.6¢. In January every hour costs the same (8.0¢). Summer pricing applies Jun–Sep; winter pricing Oct–May. Fixed charge: $9.19 a month.
1(M) Overnight (Overnight Savers). Peak 6 am–10 pm on July weekdays; 16 of 24 hours carry the top price of 19.4¢. The cheapest July weekday hour costs 8.3¢, so moving 1 kWh out of the top hours saves 11.1¢. January weekdays range from 7.3¢ to 11.3¢. Summer pricing applies Jun–Sep; winter pricing Oct–May. Fixed charge: $9.19 a month.
1(M) Smart Saver (Smart Savers). Mid-peak 6 am–3 pm, Peak 3 pm–7 pm, Mid-peak 7 pm–10 pm on July weekdays; 4 of 24 hours carry the top price of 41.5¢. The cheapest July weekday hour costs 8.7¢, so moving 1 kWh out of the top hours saves 32.8¢. January weekdays range from 7.3¢ to 22.7¢. Summer pricing applies Jun–Sep; winter pricing Oct–May. Weekends differ: Mid-peak 6 am–10 pm. Fixed charge: $9.19 a month.
Prices on this page are all-in per kWh, before taxes: base rates, supply and every per-kWh rider in the utility’s current tariff sheets. Your bill shows them as separate lines, and riders can change between tariff revisions.
As a cross-check, Ameren Missouri billed its residential customers an average of 13.26¢ per kWh in 2025 (revenue ÷ sales, EIA-861). A plan taken from URDB is shown only if its all-in price is consistent with that figure, adjusted for Missouri’s price change since.