---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-423375"
form_type: "8-K"
ticker: "NI"
cik: "0001111711"
company_name: "NISOURCE INC."
filed_at: "2026-10-16T11:00:06+00:00"
generated_at: "2026-10-16T11:05:26.442952+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# NiSource subsidiary signs 20.5-year battery storage tolling agreement with AGP unit for $2.2B

## Summary
- NiSource Generation Company LLC entered a Tolling Agreement on Oct. 15, 2026 with Atlas Storage 1 LLC, an AGP Capital Holdings Pte. Ltd. subsidiary.
- AGP Group will develop, construct, own and operate a 600 MWAC / 2,400 MWh stand-alone battery energy storage system interconnected to MISO.
- GenCo will supply power, control dispatch, and receive capacity, energy storage, ancillary services and environmental attributes; delivery term about 20.5 years.
- GenCo expects aggregate storage payments of about $2.2 billion; the Tolling Agreement is expected to be accounted for as a finance lease under ASC 842.
- Effectiveness is conditioned on AGP executing EPC and interconnection agreements by Jan. 31, 2027; GenCo has an exclusive option to purchase the Project.

## SEC filing metadata
- accession: 0001193125-26-423375
- form_type: 8-K
- ticker: NI
- cik: 0001111711
- company_name: NISOURCE INC.
- filed_at: 2026-10-16T11:00:06+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1111711/000119312526423375/0001193125-26-423375-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1111711/000119312526423375/d114059d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-423375
- JSON: https://secwatch.observer/filing/0001193125-26-423375.json
- Plain text: https://secwatch.observer/filing/0001193125-26-423375.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.