Joliet Technology Center
About Joliet Technology Center
Joliet Technology Center is Hillwood’s proposed 795-acre data center campus in Joliet, Illinois. Project materials describe a $20 billion, 1.8 GW full-build program over roughly five to seven years, with closed-loop cooling, ComEd service and no planned onsite generation. The city conditionally approved annexation in March 2026, but building permits, utility delivery and construction remain phased. The 1.8 GW figure is a future design objective, not operating capacity.
Capacity
Planned / designDevelopment
1 phases · 1 milestonesJoliet Technology Center is Hillwood’s proposed 795-acre data center campus in Joliet, Illinois. Project materials describe a $20 billion, 1.8 GW full-build program over roughly five to seven years, with closed-loop cooling, ComEd service and no planned onsite generation. The city conditionally approved annexation in March 2026, but building permits, utility delivery and construction remain phased. The 1.8 GW figure is a future design objective, not operating capacity.
Infrastructure
1,800 MW
ComEd-served full-build concept.
Closed-loop cooling; no onsite generation planned.
Project map
0 of 1 project point mappedNo map point available
Facts & sources
Published claims and their source links.