Pipe Dreams: How AI Is Rewiring Texas's Natural Gas Network
📘 Introduction
"Bring your own power" has become the answer to almost every Texas data center question. The grid queue is jammed, ERCOT has paused new approvals pending an audit, and state leaders keep saying data centers should supply their own electricity. In practice, that power almost always means natural gas: turbines on site, or a dedicated plant next door.
A gas plant is only as reliable as the gas that reaches it. This month brought two reminders of how big that supply question is getting. A Kinder Morgan pipeline affiliate is asking federal regulators to expand capacity in the Panhandle, partly to serve a power plant for a planned data center. And Washington and Seoul are backing Project Star, a 6.47-gigawatt gas plant in La Salle County built to feed a 5-gigawatt data center campus next door.
This explainer covers how gas gets from a well to a turbine, why the type of pipeline contract matters, and the question every Texan who lived through February 2021 should be asking: what happens to these private power plants in a hard freeze?
🔥 From Wellhead to Turbine
Natural gas takes several steps to reach a power plant, and each one can fail:
- Production. Gas comes out of wells, often mixed with oil and water. In the Permian Basin and South Texas, much of it is produced alongside oil.
- Gathering and processing. Small lines carry it to processing plants, which strip out water and liquids so it can travel in a pipeline. These plants need electricity to run.
- Transmission pipelines. Large, high-pressure lines move it long distances. Pipelines that cross state lines are regulated by the Federal Energy Regulatory Commission (FERC). Pipelines that stay inside Texas are overseen by the Texas Railroad Commission.
- Compressor stations. Gas loses pressure as it moves, so compressor stations along the line push it forward. Many run on gas engines; some run on electric motors.
- Delivery. A lateral line and a meter station deliver gas to the plant at the pressure its turbines need.
Pipeline capacity is measured in dekatherms per day. A dekatherm is roughly 1,000 cubic feet of gas, or one million British thermal units (MMBtu) of energy. That's the unit that ties a pipeline to a power plant: turbines are rated by how many Btus they burn per kilowatt-hour.
📜 Firm vs. Interruptible: The Contract That Decides Who Gets Gas
A power plant doesn't just need a pipeline nearby. It needs the right kind of contract.
| Firm transportation | Interruptible transportation | |
|---|---|---|
| What it is | Reserved pipeline capacity the pipeline is obligated to deliver | Space on the pipeline when there's room left over |
| Cost | Higher; the customer pays for the capacity whether it uses it or not | Lower; pay only for what moves |
| In a cold snap | Delivered first, if the gas exists | Cut first when the pipeline is full |
That's why pipeline expansions are announced in terms of "firm" capacity. The Kinder Morgan project described below is a sale of firm service. It's also why the Uri findings below matter: a firm contract guarantees space on the pipe, not gas in it.
🏗️ The Texas Buildout
The Panhandle: the Amarillo Expansion Project
Natural Gas Pipeline Company of America, a Kinder Morgan affiliate, is developing the Amarillo Expansion Project to meet growing demand in the Texas Panhandle. Kinder Morgan describes up to 550,000 dekatherms per day of firm transportation capacity, at an estimated cost of about $200 million, with service targeted for the third quarter of 2028.
Its FERC application adds detail, as Gas Compression Magazine reported and our Oct. 8 briefing covered: 321,200 dekatherms per day of new firm capacity, combined with capacity that was already unsubscribed; a new delivery point in Deaf Smith County to supply power generation, including a gas plant for a planned data center; and a new compressor station in Moore County with four Caterpillar engines totaling 22,000 horsepower. The data center's operator hasn't been named in the coverage.
South Texas: Project Star
Project Star is a $22 billion plan for a 6.47-gigawatt combined-cycle gas plant in Encinal, run by NextEra Energy Resources and Related Companies, with Lewis Energy Group as a partner. It's designed to power a 5-gigawatt Related Digital data center next door and sell leftover power to the grid, FOX 7 Austin reported. The first phase is targeted for 2029 and full operation for 2032. The developers are exploring produced water from oil and gas operations for cooling.
Lewis Energy's founder says the project will make sure South Texas gas benefits the region. Coverage so far hasn't described how the gas will be contracted or delivered. The project still needs permits, and it's arriving while TCEQ's freeze on data center permits remains in effect.
The coast: gas first, nuclear later
Blue Energy's plan at the Port of Victoria, which could supply a Crusoe data center, starts with two GE Vernova gas turbines producing about 1 gigawatt, with small modular reactors added later, POWER Magazine reported. Gas power could come as early as 2030 and nuclear as early as 2032. If the reactors slip, the gas plant is what gets built. (Our Nuclear Bet post covers the reactor side.)
📐 How Much Gas Is That?
Pipeline capacity and plant size are easier to compare with a rough conversion. A modern combined-cycle plant burns about 6,500 Btu of gas per kilowatt-hour; a simple-cycle turbine burns closer to 10,000. Using those assumptions:
| Comparison | Our estimate |
|---|---|
| Project Star's 6.47 GW running flat out for a day | About 1 million dekatherms of gas per day |
| Combined-cycle capacity that the full 550,000 Dth/day Amarillo expansion could run at full output | About 3.5 GW |
| Simple-cycle turbines the same expansion could run | About 2.3 GW |
These are our back-of-the-envelope figures, not company numbers. Real plants rarely run at full output around the clock, and heat rates vary by turbine. But they show the scale: at full output, one South Texas campus would burn close to twice the gas that a $200 million Panhandle pipeline expansion is built to carry.
🥶 The Uri Question
In February 2021, Winter Storm Uri left millions of Texans without power for days. The joint FERC and NERC investigation found that freezing and natural gas fuel supply problems were the two largest causes of power plant failures. Across ERCOT, SPP and MISO South, 55% of natural gas generating capacity had unplanned outages or derates, compared with 22% of wind and 1% of solar.
The fuel problem started upstream. An R Street Institute analysis of the federal findings notes that about 31% of plant outages during the storm came from fuel supply problems, nearly all involving gas. Combined gas production in Texas, Oklahoma and Louisiana fell by more than half that month, the largest monthly drop on record, as wellheads froze and compression failed. Pipelines were "largely able to meet their firm transportation commitments," the investigators found. The pipe was there. The gas wasn't.
Since then, Texas has required weatherization. The Railroad Commission's Statewide Rule 66, adopted in 2022 under Senate Bill 3, requires covered gas facilities to prepare for winter each year, file attestations and report weather-related outages, with penalties of up to $1 million. But it applies only to facilities on the state's electricity supply chain map, and the pipeline provisions cover facilities that serve gas generation in ERCOT. Critics, including R Street, faulted an early interpretation that let some gas facilities avoid weatherization by opting out of the "critical" designation.
That raises questions the industry hasn't answered in public:
- No grid to fall back on. An islanded campus that loses its gas supply has nowhere to turn. A grid-connected campus that loses its private plant may suddenly pull from ERCOT at the worst moment.
- Outside the map. Much of the Panhandle sits outside ERCOT. Whether a pipeline serving a private plant there, or an off-grid campus anywhere, falls under Rule 66 depends on how the supply chain map is drawn, and that isn't clear from the public record.
- Competing for gas. A freeze is when homes, hospitals and grid power plants need gas the most. Every new private plant is another customer on the same production and pipelines.
- Backup fuel. Industry consultants note that dual-fuel capability, typically fuel oil stored on site, can keep plants running when gas runs short. Data center developers rarely say whether their plants will have it.
To be fair, there's a real case for on-site gas. A data center with its own plant isn't adding demand to an already stretched grid in a crisis, and NERC says a repeat of February 2021 in Texas is unlikely, partly because of the batteries added to the grid since. But most of those batteries discharge for only a few hours, and a data center draws power around the clock, which makes a long cold snap harder to ride out. NERC has also warned that data center growth in Texas is "contributing to continued risk of supply shortfalls," TechCrunch reported.
🧭 What Texans Should Be Watching
- The FERC docket for the Amarillo Expansion Project. Filings at FERC are public, and landowners and other affected parties can file comments or ask to intervene, including those near the Moore County compressor site.
- Project Star's TCEQ air permits, and any disclosure of how its gas will be contracted.
- Firm fuel and winterization disclosures. SB 6 already requires large loads to disclose on-site backup generation. Lawmakers could ask the same about fuel contracts, dual-fuel capability and weatherization.
- The 2027 Legislature. Nearly every legislator who answered KPRC 2's survey supported requiring data centers to supply their own power, as our Oct. 8 briefing reported. Requiring that power to survive a freeze would be the logical next step.
🧾 Conclusion
"Bring your own power" moves the reliability question from the grid to the gas system. That's not necessarily worse, but it isn't solved either. Texas is building pipelines, compressor stations and multi-gigawatt plants for private customers faster than it's deciding what those plants owe the public in a crisis. Uri showed that a gas plant is only as strong as the weakest frozen wellhead behind it. Before the next storm, Texans deserve to know which data center plants have firm supply, backup fuel and weatherized equipment, and which are betting on mild winters.
For more analysis on Texas energy and AI, visit PowerGrabTX.com.
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