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 grid-connected data center site in Southern Illinois, developed working with the local municipality and serving utility for near-term, high-density compute deployment. Where our flagship runs behind the meter, Horizon runs on the grid, with the utility relationship in place.

Site:

22-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:

Grid-tied service with a utility-committed transmission upgrade
Transmission and distribution load studies underway
Sized for high-density compute deployment, 25 MW to start with future scalability

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

Status: Site secured, utility upgrade committed, 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 where grid timelines are not viable in the near term.

Site & Entitlements:

504 acres of entitled land in Cleburne, Texas
Air permits in place supporting up to 560 MW of behind-the-meter generation
Civil and site development permits
Designed for phased, campus-scale development supporting 1 GW+

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

Phase 1 – Fuel Cell Generation
Up to 560 MW of air-permitted fuel cell generation, energizing each building on delivery timelines the grid can't match.
Phase 2 – CCGT Expansion (Option)
Optional near-site combined-cycle generation to support long-term baseload power and expanded capacity.
Phase 3 – Grid Integration
Future grid tie-in and generation optimization as the campus scales, preserving flexibility and lowest delivered cost.

Status: Fully entitled site with air permits in place, targeting first building live in H1 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.