Query
Rolling Hills Wind Farm
Type
Entity Briefing
Entity
Rolling Hills Wind Farm
Technology
wind
Generated
2026-10-17T09:07:07.855Z

Briefing on Rolling Hills Wind Farm

Entity Briefing
Generated Oct 17, 2026·Dataset freshness not reported
484 MW
Capacity
Operating
Current status
2011
Operating since
1
Generators
37.2%
Capacity factor
1577 GWh
Annual generation
Briefing/plantOperating

Rolling Hills Wind Farm is a 484 MW Onshore Wind Turbine asset in MISO (Midcontinent), currently Operating.

Rolling Hills Wind Farm is reported in Iowa since 2011 under Berkshire Hathaway. Available operating and financial measures include 37.2% capacity factor and 1577 GWh annual generation; $1545/kW reported CapEx.

Location
Cass, Iowa
Technology
Onshore Wind Turbine
Owner / parent
Berkshire Hathaway
Operator
MidAmerican Energy Co
Grid
MISO (Midcontinent)
Plant ID
57501

What stands out

1

Rolling Hills Wind Farm is a 484 MW Onshore Wind Turbine asset in Iowa with status Operating.

2

Latest annual operating measures report 37.2% capacity factor and 1577 GWh annual generation.

3

Available financial measures include $6.5/MWh OpEx, $1545/kW CapEx.

4

Latest linked story: “Siemens Gamesa Wins Repowering Order for 430 MW Rolling Hills Wind Farm” (Saur Energy, 2019-07-03).

Market and operating context

ISO / market
MISO (Midcontinent)
Balancing authority
Midcontinent Independent Transmission System Operator, Inc..
NERC region
MRO
State rank
#3 of 123
National rank
#36 of 1,442

Why it matters

For this asset in MISO (Midcontinent), operating status, generation, ownership, and linked events are the primary facts for performance and asset-level diligence. The exact chart and source-linked records below let the reader test those facts before moving to a deeper report.