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1.8 MW BESS operating in Franklin, IA
1.8 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2022
Operating Since
Coordinates
42.6872, -93.2321
County
Franklin, IA
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Corn Belt Power Coop | — | — |
| Owner(s) | Corn Belt Power Coop | — | — |
| Status | Operating | — | — |
Hampton Substation Energy Storage is a battery energy storage system located in Franklin County, Iowa. The plant has a total capacity of 1.8 MW and began operating in 2022. It is owned and operated by Corn Belt Power Cooperative. The facility consists of a single generator utilizing battery technology, specifically lithium-ion batteries (LIB). The battery energy storage system (BESS) has a storage capacity of 9.1 MWh, providing a duration of approximately 5.06 hours at full output.
The plant operates within the Southwest Power Pool (SPP) balancing authority and the Midwest Reliability Organization (MRO) NERC region. Hampton Substation Energy Storage is ranked as the 3rd largest of 4 battery storage plants in Iowa, and 1145th nationally out of 1205 such plants. The plant's primary fuel is electricity (MWH), indicating that it charges from the grid and discharges to provide grid services.
Generated from EIA, GEM, and public data sources
ISO/RTO
SPP
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
Southwest Power Pool (SWPP)
Grid Voltage
12.5 kV
Regulatory Status
RE — Regulated
Entity Type
Cooperative
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.
−6 MWh
Net Charging
-45 MWh
Annual Net Energy
-0.3%
Capacity Factor
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
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2022
$1,205/kW
Est. Construction Cost
Total estimated cost: $2.2M
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Market Position
ISO/RTO Market
SPP
LMP Node
—
Pricing Hub
SPPNORTH_HUB
Node Source
OSM spatial 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.
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