U.K. business plans massive data center in Harlingen, records show

Plans for a massive data center on 1,780 acres northeast of the Valley International Airport in Harlingen are in the works by a company with ties to the United Kingdom, public records show. 

Scotland-based Eneus Energy, through its subsidiary RGV Property LLC, is under contract to purchase more than a dozen parcels of land from Stone Brothers in Raymondville by April 2026, according to Cameron County records signed by Roberto Serrano as CEO of the RGV venture. 

Eneus Energy expects to build as many as 16 data center halls to power artificial intelligence, cloud, and data analytics, requiring 1 gigawatt of electricity, according to a recent letter submitted to the Texas Public Utility Commission by Dominic Serpe, senior vice president of energy, sales, and supply at Eneus Energy. 

That much electricity could power about 250,000 homes. But the project is expected to be built in phases “to minimize community impacts and align construction with local infrastructure capacity.” 

“The RGV data center is a next-generation digital infrastructure project designed to power Texas’s future while supporting local growth in Cameron County,” the PUC letter said. 

That scale would rival the $1.5 billion El Paso data center under construction by Meta, which owns Facebook. 

Harlingen EDC Chief Executive Officer Orlando Campos declined to comment about the project. 

Eneus Energy was founded in 2013 as a green hydrogen and green ammonia development business, but has since added data centers to its portfolio. The company’s strategic investors include The Carlyle Group and GIC, a Singaporean government-controlled wealth fund. 

“As market needs evolved, we expanded our focus beyond renewable fuels to support the digital economy, leveraging our deep expertise in energy systems and grid integration to deliver cost-effective high-performance solutions for data-intensive industries,” the company’s website said.