#miso

NiSource tolls a 600 MW, 2,400 MWh battery alongside Microsoft deal

NiSource's GenCo signed a tolling agreement on October 15, 2026 for a 600 MW / 2,400 MWh stand-alone MISO battery that AGP Group will build and own, with payments expected to total about $2.2 billion over roughly 20.5 years. A day later NiSource announced a 20-year agreement to serve Microsoft's northwest Indiana campus from 2028 that grows GenCo's pool by about 1,100 MW; the battery is the only resource it has named.