Search
Search plants, projects, owners, and states
Search plants, projects, owners, and states
1.1 MW BESS operating in Marion, IA — Midcontinent Independent Transmission System Operator, Inc..
1.1 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2018
Operating Since
Coordinates
34.0410, -85.2232
County
Marion, IA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | MidAmerican Energy Co | MidAmerican Energy | — |
| Owner(s) | MidAmerican Energy Co | Berkshire Hathaway | — |
| Status | Operating | — | — |
The Knoxville Battery Energy Storage system is a 1.1 MW battery energy storage system located in Marion County, Iowa. The plant began operating in 2018 and is owned by Berkshire Hathaway and operated by MidAmerican Energy Co. It is the fourth-largest battery storage facility in Iowa, and ranks 1186th nationally.
The facility consists of a single generator utilizing battery technology, with a total storage capacity of 4 MWh. The battery chemistry is lithium-ion (LIB), and the duration is 3.64 hours. The plant operates within the Midcontinent Independent Transmission System Operator (MISO) market and balancing authority, within the Midwest Reliability Organization (MRO) NERC region.
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
13.2 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
−2 MWh
Net Charging
-25 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.
2018
$1,239/kW
Est. Construction Cost
Total estimated cost: $1.4M
Market Position
ISO/RTO Market
MISO
LMP Node
—
Pricing Hub
MINN.HUB
Alt. Hub / Zone
ILLINOIS.HUB
Node Source
Shared substation inference
No news articles linked yet for this plant.
News enrichment runs on demand — we have the pipeline, we just haven't fetched coverage for this plant yet. Request a detailed re-run and we'll add it.
No ask pi reports yet for this entity.
ask pi about Knoxville Battery Energy Storage