Updated: March 2026
Commercial rate guide for MidAmerican — Iowa (largest utility in the state), western Illinois, southeastern South Dakota, and portions of Nebraska. Serves approximately 800,000 electric and 750,000 gas customers.
General service rate for small commercial. Large general service with demand charges for accounts above 25 kW. Industrial rate for accounts above 1 MW. Gas rates include purchased gas adjustment applied monthly.
Rising
2.8% electric rate increase effective March 2026, among lowest in the Midwest du
2.8% electric rate increase effective March 2026, among lowest in the Midwest due to wind generation portfolio
Property managers with MidAmerican accounts frequently encounter these billing challenges:
Gas purchased cost adjustments creating winter billing spikes
Cross-state billing differences between Iowa and Illinois accounts
Transmission cost riders increasing annually
Estimated meter reads in rural service areas
The utility is the sole provider in this service territory.
Iowa is a regulated state. MidAmerican Energy is a subsidiary of Berkshire Hathaway Energy and operates as a vertically integrated utility.
Transmission cost recovery filing pending before Iowa Utilities Board for 2026-2027
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