Joliet Technology Center
Data center project in Joliet, Illinois
Joliet Technology Center is a data center project in Joliet, Illinois, approved, developed by PowerHouse Data Centers, with a stated size of 1.8 GW. Last reported October 21, 2026, from 4 sources.
- Status
- Approved
- Developer
- PowerHouse Data Centers
- Location
- Joliet, Illinois
- Stated size
- 1.8 GW
- Stated investment
- $20B
- Last reported
- ·
- Sources
- 4 sources
- Other companies on the job
- 7 companies named, on Ultra
Is it moving?
Every record shows two dates: the one the source gives, and the day Spezia last checked it. How the dates work
Permits and filings
- Annexation and Zoning Upon Annexation to I-1 (A-4-25)Zoning · City of Joliet City Council · A-4-25 · joliet.legistar.com ↗
- Preliminary Planned Unit Development and Preliminary Plat (PUD-8-25)Site plan · City of Joliet City Council · PUD-8-25 · joliet.legistar.com ↗
- Plan Commission recommendation on annexation, rezoning and PUDZoning · City of Joliet Plan Commission · writing.strisker.com ↗
- Annexation Agreement Resolution (178-26)Public record · City of Joliet City Council · joliet.legistar.com ↗
- Pre-industrial treatment permit requirement for sanitary sewer dischargeWater · City of Joliet · Status not stated · joliet.legistar.com ↗
- Utility filingUtility filing · Status not stated · joliet.legistar.com ↗
What the sources say
Reported
“Joliet Technology Center”
Status
“Joliet City Council voted 8-1 to approve annexation and development plan on March 19, 2026”
Size
“1,800 MW planned”
Reported
“approved a controversial 795-acre data center that will be built over the next several years”
Status
“The Joliet City Council on Thursday approved a controversial 795-acre data center”
Size
“At full use, the Joliet Technology Center would use 1.8 gigawatts of power”
Reported
“These requests relate to the so-called ‘Joliet Technology Center’, which would consist of 24 two-story data center buildings”
Status
“A proposal to build a $20bn data center outside Chicago has been recommended for approval by the Joliet planning commission.”
Acreage
795 acres
Buildings
24 principal data center buildings
Square footage
6,936,000 gross square feet
Building size and stories
144,500 sq ft, two-story
Capacity
1,800 MW
Switching station
25-acre switching station
Cooling
closed-loop system
Water use
150,000 gallons per day average
Jobs
7,000 construction, 700 permanent
Announced
October 2025
Reports behind this page
- Joliet Technology Center · compute-atlas.com ·
- Joliet OKs controversial 795-acre data center - The Herald-News · shawlocal.com ·
- Proposal for $20bn data center outside Chicago recommended for approval by local planning commission - Proposal for $20bn data center outside Chicago recommended for approval by local planning commission · datacenterdynamics.com ·
What the full file adds
- General contractorOpen: not named yet
- Electrical contractorOpen: not named yet
- Mechanical contractorOpen: not named yet
- Engineering and commissioningOpen: not named yet
- Power and cooling equipmentOpen: not named yet
- Utility and power supply3 named
- TenantOpen: not named yet
- Investors and lendersOpen: not named yet
- Named builders, suppliers and partners7 companies named on this job besides the developer, each with its source.Ultra
- Buying stage by tradeWhen the electrical, mechanical and other trade work on this job is likely to be bought.Ultra
- ContactsSenior people at the companies on this job, where public pages name them.Ultra
- Who pays whom3 deals on file: equity, loans, leases, power or equipment, each with its source.Ultra
- Video and satellite readingsHow busy the site looks, wherever public drone or news footage or a satellite image of it is found.Ultra
- Spezia's read of the projectIts construction phase, how likely it is to be built and what is holding it back.Ultra
- AlertsAn email the day this project moves.Ultra
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- 2538 S. Wabash AI data centerUnder construction · ChicagoHydraVault20 MW
- CyrusOne Yorkville Technology Campus (CHI-11)Under construction · YorkvilleCyrusOneSize not stated
- T5 Chicago IV Data CenterAnnounced · GrayslakeT5 Data Centers1.2 GW
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