Battery Storage Projects in Wisconsin
Every operating battery storage project in Wisconsin on EIA-860M for 2026-07: 5 plants, 5 storage units and 30 MW of nameplate capacity across 3 counties, most of it inside MISO.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Plants
- 5
- 5 generating units
- Nameplate capacity
- 30 MW
- Counties
- 3
- Grid operator
- MISO
- covers most of these plants
Map of battery storage projects in Wisconsin
Every one of the 5 plants is drawn at the coordinate EIA files for it.
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- Battery · 5
List of battery storage projects in Wisconsin
Sort by any column. Capacity is nameplate, summed across every generating unit EIA lists at the site.
| Blount BESSBatteries | Madison Gas & Electric Co | Dane | 7 | 1 | 2026 | Operating |
| Huiskamp BESSBatteries | Madison Gas & Electric Co | Dane | 7 | 1 | 2026 | Operating |
| West Middleton BESSBatteries | Madison Gas & Electric Co | Dane | 7 | 1 | 2026 | Operating |
| Portage Industrial BatteryBatteries | Wisconsin Power & Light Co | Columbia | 5 | 1 | 2022 | Operating |
| Boaz Microgrid BatteryBatteries | Wisconsin Power & Light Co | Richland | 3.6 | 1 | 2023 | Operating |
Largest battery storage projects in Wisconsin
- 1Blount BESSDane County, Wisconsin7 MW
- 2Huiskamp BESSDane County, Wisconsin7 MW
- 3West Middleton BESSDane County, Wisconsin7 MW
- 4Portage Industrial BatteryColumbia County, Wisconsin5 MW
- 5Boaz Microgrid BatteryRichland County, Wisconsin3.6 MW
Battery storage projects by county in Wisconsin
The county EIA files against each plant. It is the fastest way to find the plant nearest a given town.
| County | Plants | Nameplate MW |
|---|---|---|
| Dane | 3 | 21 |
| Columbia | 1 | 5 |
| Richland | 1 | 3.6 |
Battery Storage Projects in Wisconsin: FAQ
- How many battery storage projects are in Wisconsin?
- 5, with 30 MW of nameplate capacity between them, spread over 3 counties. That is the EIA-860M operating count for 2026-07.
- Is there a map of Wisconsin battery storage projects?
- Yes — the map above. Each dot is one battery storage project, sized by nameplate capacity and placed at the coordinates EIA files for it.
- Which is the largest battery storage project in Wisconsin?
- Blount BESS, at 7 MW. The table is sorted largest first, so the rest follow it.
- Is there a battery storage project near me in Wisconsin?
- The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.
- Which grid operator runs Wisconsin's battery storage projects?
- Most of them sit inside MISO, according to the balancing-authority code EIA files against each plant. Live conditions for that market are on this site.
- How current is this, and what is left out?
- EIA-860M for 2026-07. EIA technology "Batteries" — grid-connected electrochemical storage of 1 MW and above. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.