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Onshore wind illustration Onshore wind · Marshall County, Iowa

Vienna Wind Farm

A 150 MW onshore wind project in Marshall County, Iowa. Vienna Wind Farm is built and in service. Public records name MidAmerican Energy Co as its developer. No public record read so far names its builder.

The record

What the public record says about Vienna Wind Farm, as of 25 Oct 2026.

StageOperating
Construction startIn service since 2012
Size150 MW
LocationMarshall County, Iowa (to about 10 km)
DeveloperMidAmerican Energy Co
Grid operator—
Builder (EPC)Not named yet
Trade subcontractors in the app
People to call in the app
Phase windows in the app

Every fact in the app links to the public record behind it, with how many records agree and whether it is confirmed, reported or an estimate. What the terms mean.

What happened

Each change dated by the scene or the document, newest first.

  1. A filing dates the construction start to May 2012.

Who was named on it, and when, is in the app.

Also developed by MidAmerican Energy Co

ProjectStageSize
Mills Solar ProjectUtility solar · Mills County, IowaUnder construction50 MW
Highland Wind Project (IA)Onshore wind · O'Brien County, IowaOperating502 MW
Orient Wind FarmOnshore wind · Adair County, IowaOperating501 MW
Rolling Hills Wind FarmOnshore wind · Cass County, IowaOperating484 MW
Beaver Creek WindOnshore wind · Boone County, IowaOperating340 MW
North EnglishOnshore wind · Poweshiek County, IowaOperating340 MW

Every MidAmerican Energy Co project

Also in Marshall County

ProjectStageSize
Unnamed 310 MW wind projectOnshore windQueued310 MW
Unnamed 232 MW wind projectOnshore windQueued232 MW
Unnamed 100 MW storage projectBattery storageQueued100 MW
Laurel Wind FarmOnshore windOperating123 MW
Marshalltown Generating StationUtility solarOperating3 MW
State CenterUtility solarOperating1 MW

More

Questions

Vienna Wind Farm, in short.

Where is Vienna Wind Farm?

Vienna Wind Farm is a 150 MW onshore wind project in Marshall County, Iowa. The public page places it to within about ten kilometres; the precise location is in the subscriber record.

When does construction start on Vienna Wind Farm?

Vienna Wind Farm is built and in service since 2012.

Who is developing Vienna Wind Farm?

MidAmerican Energy Co, as the public record names it.

Who is building Vienna Wind Farm?

No public record read so far names a builder for Vienna Wind Farm. Groundtrace leaves the field empty rather than guess, and fills it when a permit, a filing or the builder's own page names one.

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