Off-Grid Data Center Power: Pacifico Energy’s GW Ranch Gets 7.65 GW Permit

Introduction

On 26 January 2026, Pacifico Energy secured an air permit from the Texas Commission on Environmental Quality to build GW Ranch, a private microgrid designed to generate up to 7.65 gigawatts of power in Pecos County, West Texas. The project aims to supply off-grid electricity to hyperscale AI data centers. With concerns mounting over transmission bottlenecks and grid interconnection delays, this permit represents a strategic move toward dedicated behind-the-meter generation.

According to the company, this development would be the largest fully permitted data center power campus in the United States, though independent benchmarking data on private microgrids at this scale is currently limited.

Project Overview

The planned GW Ranch campus will span more than 8,000 acres south of Odessa. It is intended to combine on-site generation assets—starting with fast-deploying simple-cycle gas turbines—with a phased addition of 1 GW of solar capacity and 1.8 GW of battery storage. According to company filings, construction could begin early 2026, with the first turbine online by Q1 2027 and 1 GW of integrated power available by 2028. Pacifico Energy notes that the campus can be expanded without further permitting to serve up to 5 GW or more by 2031.

COO Kevin Pratt highlights that the reliance on simple-cycle turbines accelerates deployment by eliminating off-site water needs, a common limitation in combined-cycle plants. By generating power directly on-site, GW Ranch avoids lengthy utility grid queues, enabling data center operators to scale rapidly in response to AI workloads.

The permit covers air emissions from turbines and backup engines. Pacifico Energy secured the approval after demonstrating compliance with TCEQ air quality standards. The campus will operate under regulated emission limits, with monitoring systems in place to track performance and ensure adherence to environmental requirements.

Technology Components

At its core, GW Ranch relies on a behind-the-meter private microgrid. The initial phase uses simple-cycle gas turbines that burn abundant Permian Basin natural gas to spin turbines directly for electricity. While less thermally efficient than combined-cycle units, these turbines require minimal water and can be permitted and built in under two years.

Future phases will introduce roughly 1 GW of ground-mounted solar photovoltaic panels. These panels will feed into the microgrid when conditions allow, reducing fuel consumption and operational costs. To smooth the variability of solar output, the design includes up to 1.8 GW of lithium-ion battery storage. The batteries can store excess solar generation and dispatch it during peak demand or turbine maintenance.

Together, these assets create a resilient power supply that bypasses constraints on the public grid. Operators of AI data centers can draw from this dedicated network without competing for capacity on regional transmission systems.

Behind-the-meter microgrids integrate generation, storage and controls on-site. They often include advanced energy management systems to balance supply and demand, island from external grids automatically, and provide power quality assurances critical to data center operations. GW Ranch’s design is expected to feature microgrid controllers that optimize dispatch between turbines, solar and batteries.

Site Context and Benefits

Pecos County sits at the heart of the Permian Basin, a region long known for oil and gas production since the early 1900s. The local abundance of natural gas has kept fuel costs competitive compared to other data center hubs. Water availability is relatively low, making gas turbines an attractive choice over water-dependent combined-cycle plants.

By locating off-grid generation on more than 8,000 acres, Pacifico Energy avoids the transmission bottlenecks now common in Texas. Developers of traditional data center campuses often face interconnection queues that can extend for years. GW Ranch sidesteps those delays, delivering a self-contained power solution.

Pecos County has seen power rates historically below national averages due to local gas supplies. The county’s economic development office has actively promoted energy projects to diversify beyond oil and gas extraction, positioning the region as an emerging data center hub.

Drivers and Market Trends

The surge in AI and hyperscale computing has driven demand for ever-greater power. Recent studies suggest hundreds of data centers exceeding 300 MW are being planned globally. Delays in grid upgrades, supply chain challenges and environmental reviews have pushed project timelines out. In response, energy developers are shifting focus to behind-the-meter solutions.

According to pv magazine USA, Pacifico Energy anticipated this trend three years ago, initially developing microgrids for business parks and manufacturers. Kevin Pratt notes that clients now routinely request GW-scale capacity, with power quality and speed to market taking precedence over energy efficiency alone.

Policy shifts at the state level, including streamlined interconnection processes in Texas and incentives for distributed energy resources, have made private generation projects more attractive. Vendors of microgrid solutions report rising inquiries from hyperscale operators concerned about resilience and sustainability metrics.

Collateral Impacts

By reducing reliance on the public grid, GW Ranch may relieve some strain on Texas’s transmission network. That can translate to more stable rates for other customers. However, the heavy use of natural gas raises questions about carbon emissions. Pacifico Energy has not disclosed any carbon capture or offset plans.

Economically, the project could bring construction and operations jobs to Pecos County, where the population is around 15,000. Local tax revenues may benefit from the campus footprint. In regions without cheap gas, competitors are moving instead to solar-plus-storage microgrids, as seen in Arizona and California.

Environmental groups may question the reliance on fossil fuel generation, despite the efficiency gains from on-site operations. Local stakeholders could push for carbon offset programs or renewable fuel blending. Economic analyses will need to weigh job creation against potential emissions footprints.

Outlook and Considerations

Pacifico Energy’s permit allows up to 7.65 GW of generation, of which only a fraction is scheduled for immediate buildout. The company indicates that the first GW will be online by 2028, with expansion to 5 GW or more by 2031. These timelines depend on market demand, economic factors and equipment availability—areas that remain uncertain.

Cost trajectories for lithium-ion batteries continue to improve, which could accelerate the transition of some capacity from gas to solar and storage. Conversely, natural gas prices remain volatile, and policy changes on methane emissions could alter the cost-benefit equation for new turbines.

Further scrutiny may come from environmental regulators or stakeholders concerned about emissions. At the same time, other states are exploring similar private grid strategies, which could reshape the data center landscape. Energy buyers and policymakers will be watching how GW Ranch balances speed, reliability and sustainability.

Conclusion

With its 7.65 GW permit in hand, Pacifico Energy is poised to deliver one of the largest off-grid power campuses in the United States. GW Ranch exemplifies a shift toward self-contained private microgrids for hyperscale AI data centers. While practical in the gas-rich Permian Basin, the approach raises broader questions about long-term emissions and resource planning.

As data center operators eye GW Ranch, you’ll want to monitor how the project navigates regulatory reviews, market shifts and technology evolution. The outcome may influence site selection strategies and how utilities adapt to behind-the-meter competition.