World Power Plants

Knoxville Battery Energy Storage1.1 MW Storage

StorageVerified: Jul 2026

Knoxville Battery Energy Storage is a 1.1 MW storage power plant in the United States, operated by MidAmerican Energy Co since 2019. Ranked #91 of 104 storage plants in the United States. Its 1.1 MW represents 0.13% of the total storage capacity of 816 MW. The largest storage plant in the United States is AES LAWAI SOLAR Hybrid at 40 MW, making Knoxville Battery Energy Storage 36.4 times smaller. Nearby plants include Prairie Wind Farm (168 MW, Wind), Cargill Corn Milling Division (40 MW, Gas), and Pella Peaking (28 MW, Oil). The facility is located in Iowa, approximately 50 km southeast of Des Moines.

Capacity
1.1 MW
Commissioning Year
2019

7 years old

Owner
MidAmerican Energy Co
Location
41.3160°, -93.0610°

United States of America, North America

Context & rankings
  • 9,425. largest of 10,098 plants in United States of America
  • #37,212 worldwide by installed capacity
  • #118 of 135 Storage plants worldwide
Age & fleet comparison

7 years in operation

Storage fleet average: 9.6 years

Operator portfolio

MidAmerican Energy Co operates 45 plants totalling 11,395 MW

Regional density

48 plants within 100 km, 4,655 MW combined

Nearest plant: Pella Peaking (14.7 km)

Location

Coordinates:: 41.316000, -93.061000
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

Knoxville Battery Energy Storage is a storage power plant producing approximately 2 GWh of clean electricity per year with zero direct CO₂ emissions during operation.

Technical Details

Primary Fuel Type
Storage
Energy Source
Non-Renewable
Country
United States of America
Continent
North America
Data Source
Global Power Plant Database

United States of AmericaEnergy Profile

10,098
Total Plants
1420.7 GW
Total Capacity
GasCoalNuclearWind
Top Fuels

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