If approved as filed, this would add about $2.89 a month to a typical household's natural gas bill; it does not involve data centers.
MidAmerican Energy 800 MW Solar Reliability Project ratemaking principles
Approved Rate matter, docket RPU-2025-0001 before the Iowa Utilities Commission.
No residential dollar figure published yet
The filing does not state a typical-bill impact we can verify. We will add one when the commission staff or the consumer advocate publishes it.
MidAmerican Energy asked the Iowa Utilities Commission to set advance ratemaking terms for an 800 megawatt solar project across roughly six Iowa sites, saying it needs the power partly because data center growth is pushing electricity demand higher than in 2023 and 2024. The commission approved a settlement in September 2025 that also requires MidAmerican to study its power supply plans every three years, including scenarios for retiring coal plants. The solar sites are expected to come online in phases in 2027 and 2028.
What it means for your bill: This case does not set rates directly, but the new solar plant it approves will eventually be paid for through customer rates, and MidAmerican has said data center growth is a major reason it is needed.
- Status
- Approved
- Utility
- MidAmerican Energy
- Commission
- Iowa Utilities Commission
- Docket
- RPU-2025-0001
- Decided
- September 11, 2025
- Data center linked
- Yes. The filing ties part of the cost or the tariff design to data center load.
- Last checked
- August 29, 2026
Sources
- MidAmerican releases long-term plan to meet projected Iowa economic and customer demand growth with reliable and affordable energy, MidAmerican Energy
- MEEA Policy Insider - September 2025, Midwest Energy Efficiency Alliance
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