MidAmerican customers are already paying a temporary increase while the case is reviewed; if the full 2.89 dollar a month request is approved as filed it would stay in effect, and it does not involve data centers.
+$3a month
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.
What happens next
The decision is final; the new rate takes effect once the order sets a date. How rate cases work.
Fileddate not published
Hearingheld or waived
DecisionSep 11, 2025
On billsdate not published
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. The projects themselves: isadatacentercoming.com.
- Last checked
- August 29, 2026
Common questions
How much will my MidAmerican Energy bill go up?
That has not been published yet; we will add it once the commission staff or the consumer advocate release a figure.
When would the new rates start?
Not yet set. That is decided along with the case, usually as part of the commission's final order.
When is the hearing?
No hearing date is on record for this case.
How do I comment?
The comment period closed once this case was decided; its result is above.
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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Other MidAmerican Energy matters
Other pending cases in Iowa
1
MidAmerican Energy natural gas rate increase
MidAmerican Energy, IA
MidAmerican customers are already paying a temporary increase while the case is reviewed; if the full 2.89 dollar a month request is approved as filed it would stay in effect, and it does not involve data centers.
+$3a month