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Big Hollow Energy Center

Sector: Energy Storage • Location: Missouri and Illinois, United States

Source: AInvest

Project
Planned

A 1,200-megawatt hybrid natural gas and 400-megawatt battery storage facility designed to ensure reliability during peak demand while integrating renewable energy. It is part of Ameren Corp's $63 billion investment pipeline to modernize grids for AI and data center energy demands.

Status
Prospective
Sector
Energy Storage, Data Center, Natural Gas
Location
Missouri and Illinois, United States of America
Updated
22 Jul 2026
Source
AInvest

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Project Information FAQ

Project Information

4 Q
The project “Big Hollow Energy Center” is an infrastructure initiative in the Energy Storage sector, located in Missouri and Illinois, United States. Taiyo aggregates data on it from AInvest.

Participants

Not available for this record.

Status

Original status

planned

Taiyo status

Prospective

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

A 1,200-megawatt hybrid natural gas and 400-megawatt battery storage facility designed to ensure reliability during peak demand while integrating renewable energy. It is part of Ameren Corp's $63 billion investment pipeline to modernize grids for AI and data center energy demands.

Original sector

Utilities

Budget

Location

Country

United States of America (USA)

State

Missouri and Illinois

Source

Source

AInvest

URL

More Details

Record type

Project

Sector

Energy Storage, Data Center, Natural Gas

Article published date

2025-09-16

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