# Pike County Energy Storage

MISO asset profile · https://askthegrid.com/assets/facilities/pike-county-energy-storage

Four-hour storage reusing the Petersburg generating site's interconnection

Pike County is AES Indiana's operating 200 MW / 800 MWh four-hour battery at the Petersburg generating site in Pike County, Indiana. Regulatory filings describe two 100 MW sets, each connected through a 34.5/345 kV transformer to a shared collector substation.

## Profile

- **Interconnection:** The project reuses generation-site interconnection rights and connects through two 34.5/345 kV transformers and a collector substation.
- **Delivery team:** AES Pike County Energy Storage LLC owns the project; Fluence holds the EPC and storage-system role.

## Metrics

- **Storage power:** 200 MW — Two 100 MW sets.
- **Available energy:** 800 MWh — Four-hour output at the filing's stated 80% discharge level.
- **Step-up transformers:** 2 — 34.5/345 kV, one per 100 MW set.

## Facts

- **Placed in service:** March 2025 · confidence: high
- **EPC/integrator:** Fluence · confidence: high

## Sources

- [AES Pike County petition](https://iurc.portal.in.gov/_entity/sharepointdocumentlocation/fbde3d87-5826-ee11-9965-001dd80895b5/bb9c6bba-fd52-45ad-8e64-a444aef13c39?file=AES-IN+and+AES-Pike+County_Petition_071823+%281%29.pdf) — Indiana Utility Regulatory Commission · regulatory filing — Exact legal owner, EPC, energy basis, equipment configuration, and interconnection design.

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Source: Ask the Grid — https://askthegrid.com/