Battery storageOperatingMISO

West Middleton BESS

Battery storage project in Dane County, Wisconsin. 7 MW of nameplate capacity across 1 generator, operated by Madison Gas & Electric Co.

Also known as EIA plant 69313

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6 plants within 14 km, from EIA coordinates.

Key facts

Capacity: 7 MWNameplate
Generators: 1 operatingEIA-860M, August 2026
Operating since: April 2026First generator online
Operator: Madison Gas & Electric CoEIA operator ID 11479
Grid: MISOBalancing authority MISO
Price nodes: 1 MISO nodeResource nodes with prices
Location: Dane County, WI43.0934, −89.5698
EIA plant ID: 69313EIA plant page

Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.

How much power West Middleton BESS produces

Free · EIA-923

EIA-923 has no net generation reported for this plant.

Power prices and basis

Free account · MISO

Emissions

Free · EPA CAMPD

No EPA emissions units are linked to this plant.

Water use

Free · EIA-923 cooling, USGS

No EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.

Generators

Free · EIA-860M

Generator	Technology	Nameplate MW	Online since
WMB	Batteries	7.0	April 2026

Ownership and offtake

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Ownership and offtake are part of Pro

Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Madison Gas & Electric Co as the operator, which is not always the owner.

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Modeled data

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Power plants near West Middleton BESS

Middleton Biogas Solar, LLCSolar · 2.2 MW · 3.8 km Middleton Airport SolarSolar · 5.6 MW · 4.0 km Epic VeronaSolar · 2.7 MW · 10.7 km West Campus Cogeneration FacilityNatural gas · 169.3 MW · 11.9 km FitchburgNatural gas · 57.6 MW · 12.5 km O'Brien Solar FieldsSolar · 22.1 MW · 13.9 km

More plants operated by Madison Gas & Electric Co

West Campus Cogeneration FacilityNatural gas · 169.3 MW · Dane County Blount StreetNatural gas · 100 MW · Dane County West Marinette 34Natural gas · 83 MW · Marinette County Saratoga Wind FarmWind · 66 MW · Howard County, IA FitchburgNatural gas · 57.6 MW · Dane County Diesel GeneratorsOil · 54 MW · Dane County

All 271 plants in Wisconsin More battery storage projects in Wisconsin 23 plants in Dane County Largest power plants in Wisconsin MISO on the mapMadison Gas & Electric Co: 19 plants

Questions about West Middleton BESS

Where is West Middleton BESS?

West Middleton BESS is in Dane County, Wisconsin, at 43.0934, −89.5698. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).

Who operates West Middleton BESS?

EIA-860M for August 2026 lists Madison Gas & Electric Co as the operator (EIA operator ID 11479). The operator is not always the owner.

When did West Middleton BESS start operating?

Its first generator began operating in April 2026, according to EIA-860M.

Does InfraMap have power prices for West Middleton BESS?

Yes. InfraMap has MISO day-ahead and real-time prices at 1 price node linked to West Middleton BESS, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.

Sources

EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
MISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05

Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page