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50 MW Solar operating in Union, IA
50 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2024
Operating Since
Coordinates
41.0707, -94.3185
County
Union, IA
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Interstate Power and Light Co | Interstate Power and Light Co | — |
| Owner(s) | Interstate Power and Light Co | Alliant Energy | — |
| Status | Operating | operating | — |
Creston Solar is a 50 MW solar photovoltaic power plant located in Union County, Iowa. The plant began operating in 2024 and is owned by Alliant Energy and operated by Interstate Power and Light Co. It consists of a single generator utilizing single-axis tracking technology. Creston Solar ranks as the 7th largest solar plant in Iowa out of 31, and 1148th nationally out of 7108.
The plant's latest annual generation was 97,004 MWh, resulting in a capacity factor of 22.1%. Creston Solar operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the Midwest Reliability Organization (MRO) NERC region. Financial data indicates an installed cost of $1996 per kW, with data sourced from FERC filings.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
69.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
3.9K MWh
Latest Month
97.0K MWh
Annual Generation
22.1%
Capacity Factor
Forward-looking generation outlook with probabilistic ranges across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
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Solar photovoltaic · Interstate Power and Light Company · Data from 2024
$1,996/kW
Installed Cost
$4.5/MWh
Operating Cost
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
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Point of Interconnection
Nearest Substation
Creston East Substation · 69 kV
Substation Distance
0.088 km
Operator
ITC
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
ALTW.CRSTNSOL
Pricing Hub
MINN.HUB
Alt. Hub / Zone
ILLINOIS.HUB
Location Type
Generation Node
Node Source
Curated node match
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-26
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