Constellation Energy Essex Data Center
Essex, Kankakee County, IL
Constellation Energy Essex Data Center is an announced data center project in Essex, IL. Constellation Energy has acquired roughly 678-700 acres near the former High Point Golf Course in Essex (about 9 miles south of the Braidwood Clean Energy Center) and is seeking to annex the land, intending to market the site carbon-free (nuclear) power to a future data-center tenant. As of the report Constellation stated it has no customer yet and no formal development agreement exists; village officials describe the process as very early fact-finding.
Project status
- Announced
- Permitting
- Under constructionNot yet
- OperationalNot yet
Community sentiment
Should this project be built?
What’s next
Election Day is in 10 days.
Latest news
Nothing written about this data center yet. The latest from Kankakee County, IL:
Records and documentation
Illinois state legislation
- ICC Docket Nos. 25-0677/25-0679 (Consolidated) - ComEd Large Demand Project Applicant/Customer (LDPAC) TariffComEd tariff creating a formal "Large Demand Project Applicant/Customer" class for data centers/large loads ≥50MW, approved March 2026 with graduated security deposits ($1M for 50-200MW, +$500k per additional 100MW). Cites 75+ pending large-load interconnection requests totaling 28,000+MW, exceeding ComEd's all-time system peak.Download
- Project Vector Annexation and Development AgreementAnnexation and development agreement setting terms for the 'Project Vector' data center development in DeKalb, Illinois.Download
- HB2756 - Data Center Cost-Shifting Protection ActProtects ratepayers from cost-shifting caused by data centers.Download
- SB2181 - Illinois Data Center Energy and Water Reporting ActRequires all data centers to annually report energy and water consumption beginning January 1, 2026.Download
- SB58 - Sales and Use Tax Law exemption for certified data center facilitiesCreates sales/use tax exemptions for certified data center facilities.Download
- SB57 - Large-Load Data CentersRegulates large-load data centers.Download
- HB2026 - Data center industrial zoning ordinance review requirementRequires localities to review and amend zoning ordinances for data centers under industrial zoning rules.Download
- HB1301 - Limits data center electricity cost risk and imposes moratoriumLimits costs/risks associated with data center electricity use and imposes a moratorium.Download
- Data Center Zoning OrdinanceLogan County, Illinois zoning ordinance for data centers, approved by the board June 1, 2026.Download
- SB4206 - LOC GOVT-DATA CENTERDescription comingDownload
- HB5755 - MUNI CD-DATA CENTER REFERENDUMDescription comingDownload
- SB4016 - HYPERSCALE DATA CENTERSDescription comingDownload
- SB3761 - DATA CENTERS-VARIOUSDescription comingDownload
- SB0094 - DATA CENTERS-FOREIGN OWNERSHIPDescription comingDownload
- SB3830 - DATA CENTERS-VARIOUSDescription comingDownload
- SB3578 - DATA CENTERS-FOREIGN OWNERSHIPDescription comingDownload
- HB5513 - HYPERSCALE DATA CENTERSDescription comingDownload
- SB4203 - DCEO-DATA CENTERSDescription comingDownload
Site details
- Operator
- Not announced
- County
- Kankakee County, IL
- Address
- Essex, IL
- Stage
- Announced
Capacity and size: not on file
Map
Photos
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Kankakee County to register concerns with Indiana about use of river water to cool proposed data centerShaw Local Enewspapers
ComEd customers could pay billions for data center hookups, warns utility watchdog groupShaw Local Enewspapers
An $8 billion Treasury break helped Meta’s tax rate hit 2%. Senators want data center tax answersFortune
The states with the fewest and most data centers, rankedBusiness Insider
Finns Are Seething After Google Illegally Toppled 250,000 Trees for a Data CenterMother Jones
Google offer to pay others to help data center powerArkansas Online
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