Missouri

Why is it like this in Missouri?

Missouri's electricity rate of about 13¢/kWh is among the lower in the Midwest, but that advantage is narrowing. Ameren Missouri pushed through a roughly 12% rate increase in June 2025, adding about $14/month to average bills. With gasoline priced similarly to electricity on a per-mile basis for a typical PHEV, At the January 2026 baseline, electricity is clearly the cheaper per-mile option in Missouri — though the rate trend is moving in the wrong direction for home charging, and further increases are expected.

In the news · Missouri

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  Ameren's rates are going up. Here's how that will affect you

  St. Louis Public Radio · Apr 30, 2025

  Missouri regulators approved a roughly 12% Ameren rate increase (~$14/month) effective June 2025 — a direct increase in the per-kWh cost that determines whether it's cheaper to drive a Missouri PHEV on gas or electricity.

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  Ameren wants to raise electric rates in Missouri again. Here's how you can weigh in

  St. Louis Public Radio · Jan 16, 2025

  Ameren sought a 15% rate increase in early 2025, setting the stage for the rate hike that went through — explains why Missouri's electricity costs were on a steep upward path.

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  Data centers have already paid Ameren Missouri $28M. If they come, everyone's bills could rise

  St. Louis Public Radio · Oct 20, 2025

  Large data centers are paying Ameren upfront fees but could drive future rate increases if they fail to materialize — a forward-looking risk factor that may push Missouri electricity costs higher, affecting PHEV charging economics.

Curated coverage of Missouri's EV/PHEV cost, policy, and infrastructure story. External links open in a new tab.

Midwest region comparison