Metrobloks: Harlingen, TX

Metrobloks is developing a data center campus in Willacy County, Texas, northeast of Harlingen, with potential to expand to 350 MW of critical IT capacity. The facility targets the AI/HPC market with high-density computing applications backed by redundant energy sources at competitive rates. Strategic cross-border interconnectivity positions it as a hub between the USA and Mexico.

The campus sits under 40 miles from 200 S. 10th Street in McAllen, one of the most important cross-border network assets carrying internet traffic between Mexico and the United States.

Key Specifications

• Uptime Institute Tier III (concurrently maintainable or fault tolerant)
• Voltage: 480V or 415/240V to rack
• Redundancy: UPS N+1 (per hall), mechanical N+1 (lineup), N+4 (HU level)
• Cooling: Air, liquid-to-the-chip, or hybrid; 500kW (N+1) CDUs; zero chillers (DX heat units with economizer)
• PUE: As low as 1.33 regardless of scale
• White Space: 440,000 SF in 15,000 SF data halls
• Power Density: 400W/SF; rack positions of 150+kW, rows of 650kW
• Capacity increments: 1.5MW or 2MW IT; data halls scale 3MW to 12MW
• Standby Power: 2,750kW diesel generators (N+1)
• Ceiling Height: 16’ · Floors: 2 · Max rack load: 3,800 lbs
• Expansion available

Power & Land

The campus interconnects directly to both the ERCOT grid and wind generation at the Las Majadas substation under a 100% renewable power purchase agreement, a dual-fed design that maximizes stability while keeping energy costs low. On-site LNG generation provides N+1 resiliency. Additional substations are available for expansion, and the site carries no zoning regulations or restrictions.

Incentives

Texas House Bill 1223 provides state sales and use tax exemptions for qualifying data center equipment.