All industries › Battery storage › Illinois › Calumet BESS
Battery storage · Cook County, Illinois
Calumet BESS
A 20 MW battery storage project in Cook County, Illinois. Calumet BESS has asked to connect to the grid or filed for its first approvals; nothing on record yet commits money to it. No public record read so far names its builder.
The record
What the public record says about Calumet BESS, as of 25 Oct 2026.
| Stage | Queued |
|---|---|
| Construction start | Q1 2027 estimate |
| Size | 20 MW |
| Location | Cook County, Illinois (to about 10 km) |
| Developer | Not named in any record read |
| Grid operator | PJM |
| Builder (EPC) | Not named yet |
| Trade subcontractors | in the app |
| People to call | in the app |
| Phase windows | in the app |
Every fact in the app links to the public record behind it, with how many records agree and whether it is confirmed, reported or an estimate. What the terms mean.
What happened
Each change dated by the scene or the document, newest first.
No change on record since Groundtrace started tracking it.
Who was named on it, and when, is in the app.
Also in Cook County
| Project | Stage | Size |
|---|---|---|
| 2055 Lunt AvenueData centers | Under construction | — |
| Aligned Data Centers ORD03Data centers | Under construction | — |
| Chi 11 Data CenterData centers | Under construction | — |
| Compass Datacenters ORD IData centers | Under construction | — |
| Equinix CH5 Site ImprovementData centers | Under construction | — |
| Mount Prospect Technology Campus Cloud HqData centers | Under construction | — |
More
Questions
Calumet BESS, in short.
Where is Calumet BESS?
Calumet BESS is a 20 MW battery storage project in Cook County, Illinois, in PJM's interconnection queue. The public page places it to within about ten kilometres; the precise location is in the subscriber record.
When does construction start on Calumet BESS?
Groundtrace estimates construction starts in the first quarter of 2027. This is an estimate from the project's filings, not a date any record states; the exact date and the record behind it are in the subscriber record.
Who is developing Calumet BESS?
No public record read so far names its developer.
Who is building Calumet BESS?
No public record read so far names a builder for Calumet BESS. Groundtrace leaves the field empty rather than guess, and fills it when a permit, a filing or the builder's own page names one.
Pricing
Free to explore. Subscribe for the full record.
Usage-based, no seats, cancel any time. Pay for what your team and your assistant actually use.
Explore
Free
- The map, by state and industry
- The next projects to break ground, per state
- A page per project, developer and grid operator
- The glossary and guides
Team
From $1,500 per month2,000 records included, then $0.25 per record. Month to month.
- Every project in development, with timelines
- Builders, developers and trade subcontractors
- Work contacts
- App, API and MCP server
Enterprise
Custom
- Everything in Team
- Watchlists and alerts
- New states and industries on request
- Dedicated support
Request access
Tell us what you sell. We answer within a working day.
Write to hello@groundtrace.io with your name, your company and what you sell, and we set up your access.