Data center profile · DeKalb, DeKalb County, Illinois

Karis Critical DeKalb

Karis Critical's planned hyperscale campus in DeKalb, Illinois, which the developer says has 504 MW of ComEd power lined up for first energization in early 2029

Power claimed, early stage. Karis Critical says it has secured 504 MW of utility power from ComEd with first energization expected in Q1 2029, and ComEd filed a transmission service agreement with Karis at FERC in May 2026. No local approvals, tenant or site plan are on record here.
504 MW
utility power from ComEd (developer says)
utility load, per Karis's Nov. 2025 materials
Q1 2029
first energization expected
developer target
May 22, 2026
ComEd files a transmission agreement with Karis at FERC
docket ER26-2615-000
OperatorKaris Critical, LLC
CustomerNone named
Planned IT capacity403 MW at full build-out (our estimate from the company or utility power figure)
First building in serviceOur estimate: 2029 (range 2027 to 2032).
Next deadlineQ1 2029: First energization expected (developer)
Power

Power and the grid

504 MW contracted

ComEd gridDeveloper says secured
504 MW
utility power the developer says is secured; FERC filing does not state MW Company · Nov. 2025
Contracted

Getting on the grid

Who supplies what, what it costs, and what is still not public.

  1. Nov. 2025
    Power claim
    Karis materials say 504 MW of ComEd power is secured. Company · Nov. 2025
  2. May 22, 2026
    Transmission agreement filed
    ComEd files a transmission service agreement with Karis Critical at FERC, asking that it take effect July 22, 2026. see Permits
  3. Q1 2029
    First energization
    Developer's expected date. Company · Nov. 2025
Permits

Permits checklist

1 pending

Filings on record.

Risks

What could slow it down

Timeline

What happened, and what is due

SitePaper trailConstructionPowerPermitsMoneyLegalUpcoming
  1. Nov. 2025
    Site Karis Critical markets a DeKalb hyperscale campus with 504 MW of ComEd power Company · Nov. 2025
  2. May 22, 2026
    Power ComEd files a transmission service agreement with Karis Critical at FERC State agency · May 2026
  3. July 22, 2026
    Power Requested effective date for the transmission agreement State agency · May 2026
  4. Q1 2029
    Power First energization expected (developer) Company · Nov. 2025
Who is involved

Owners, partners and builders

Owners
  • Karis Critical, LLC: developer
Power partners
  • Commonwealth Edison Company (ComEd): serving utility
Decision-makers
  • FERC: transmission agreement
Still unknown

Open questions

Where this comes from

26 records from 6 documents

Drawn from company statements, state agency records, public and commercial datasets and news reports, each kept with its date and source. The bar shows documents by type.

Company 3State agency 1Dataset 1News report 1
Evidence

Every quote behind this page

Grade key: A = the primary record itself (permit, filing, exhibit) · B = a dated official statement · C = news reporting. Map distances are our own measurements on OpenStreetMap and carry no grade. Allegations in lawsuits are marked as such in the quotes.

Power (6)
  • Utility service: 504 MW
    “504 MW of utility power secured via ComEd, with first energization expected in Q1 2029”
    Company · Nov. 2025 · grade B
  • Construction stage: pre-construction - land/listing stage; no construction reported; first energization expected Q1 2029
    “504 MW of utility power secured via ComEd, with first energization expected in Q1 2029”
    Company · Nov. 2025 · grade B
  • Utility: ComEd (new dedicated substation planned)
    “ComEd has confirmed up to 504 MW deliverable via a new dedicated substation”
    Company · Nov. 2025 · grade B
  • Announced: Nov. 2025
    “504 MW of utility power secured via ComEd, with first energization expected in Q1 2029”
    Company · Nov. 2025 · grade B
  • Karis targets 300-500 MW of on-site gas generation (targeted late 2027), scaling total site capacity beyond 800 MW - prospective only, no permit found
    “onsite gas "300-500 MW" targeted late 2027, "scaling total site capacity beyond 800 MW over time"”
    Company · Nov. 2025 · grade B
  • The Illinois Attorney General's FERC protests independently described the Karis Critical project as one that could grow to roughly 500 MW (via Utility Dive) - consistent with the 504 MW DeKalb figure and with mapping the
    “the Illinois AG’s FERC protests described the Karis Critical project as one that could "grow to roughly 500 MW" (Utility Dive)”
    News report · Oct. 2026 · grade C
Money and contracts (3)
  • Tenant status: none found - developer markets powered land/campus; no tenant named
    “Karis Critical describes itself as an investor in land, energy, and infrastructure for data centers”
    Company · Oct. 2026 · grade B
  • Transmission Service Agreement (TSA): transmission service filing TSA filed under FPA section 205(d)
    “§ 205(d) Rate Filing: Filing of TSA betwen ComEd and Karis Critical to be effective 7/22/2026. Filed Date: 5/22/26. Accession Number: 20260522-5122. Docket Numbers: ER26-2615-000”
    State agency · May 2026 · grade B
  • Transmission Service Agreement (TSA): effective date July 22, 2026
    “Filing of TSA betwen ComEd and Karis Critical to be effective 7/22/2026”
    State agency · May 2026 · grade B
Site and other (5)
  • Campus name: Karis Critical DeKalb Hyperscale Campus
    “Karis's own marketing teaser (Nov 2025, 'DeKalb, IL Hyperscale Data Center Campus')”
    Company · Oct. 2026 · grade B
  • Developer: Karis Critical, LLC
    “Karis Critical's hyperscale site is DeKalb, IL”
    Company · Oct. 2026 · grade B
  • County code: 17037
    Measured on OpenStreetMap map data.
    Dataset · Oct. 2026
  • ComEd's ICC-approved KARE 345 kV project (Keslinger Rd / Crego Rd, Afton Township) is the transmission build for the south-DeKalb cluster's load growth (Meta / Edged / Karis) - context only, not a campus instrument
    “ComEd's ICC-approved KARE 345 kV project (Keslinger Rd / Crego Rd, Afton Township) is the transmission build for this cluster's load growth”
    Company · Oct. 2026 · grade B
  • Site acres: 250 acres
    “250-acre hyperscale data center campus in DeKalb, IL (expansion land possible) - adjacent to Meta’s existing data center”
    Company · Nov. 2025 · grade B