Power-Ready Campuses
Built for AI and Hyperscale

THE PORTFOLIO

Building the Foundation for AI Compute

Yellowbox originates, permits, and owns power-first campuses that solve the most critical deployment constraint: power availability. Entitled land, air-permitted behind-the-meter generation, and grid-ready design, live on timelines the grid can't match.

Project Horizon

Southern Illinois

Overview: Project Horizon is a 25 MW gross grid-connected data center site in Southern Illinois. City approvals for data center development are in place, and the site can support high-density compute deployment. Horizon runs on the grid, and the utility relationship is already in place. Power can be delivered in 2027, roughly 12 to 15 months from go.

Site:

~20 acres, one-third of a mile from the serving substation
Municipal partnership with site control and local support
Regional fiber access and water availability

Power:

10 MW of grid-tied service available out of the gate in Q1/Q2 2027
A utility transmission upgrade unlocks the second tranche of 15 MW, for 25 MW total by Q3/Q4 2027.
Potential to double in size from 2030 onward

Development & Incentives: Purpose-built campus designed for rapid deployment, backed by enterprise zone incentives and TIF support that helps reduce development costs.

Status: Site secured, refreshed load studies in progress. Targeting warm shell delivery in 2027.

Project Lone Star

Overview: Project Lone Star is a 504-acre, power-first data center campus in the DFW region, developed to support large-scale AI and hyperscale deployments.

Site & Entitlements:

504 acres of entitled land in Cleburne, Texas
Air permits in place supporting up to 500 MW gross of behind-the-meter generation starting in 2028
An additional 500 MW gross from the grid scales starting in 2028/29 through 2033
Civil and site development permits in place
Designed for phased, campus-scale development supporting 1 GW+

Power Strategy: Project Lone Star delivers a staged power approach starting in 2028 which enables near-term deployment while preserving long-term scale and grid integration.

Phase 1a – BTM Natural Gas Power
Fuel cell generation of up to 500 MW gross at the Cleburne campus, air-permitted under TCEQ Standard Permit energizing each building on delivery timelines starting in 2028.
Phase 1b – Grid Power
500 MW of grid power delivered through our retail utility partnership, with delivery in 2028/29 to support long-term baseload power and expanded capacity through 2033.

Status: Fully entitled site with grid alignment and air permits in place, targeting first building live in H2 2028, with phased expansion thereafter.

Cleburne, Texas (DFW Region)

Power on Your Timeline

Connect with our team to review campus availability, specifications, and delivery timelines.