Fermi says an undisclosed investment-grade hyperscaler agreed to prepay about $200 million toward 600 MW at its Project Matador campus near Amarillo, Texas, but no lease has been signed and refund terms have not been disclosed. For investors, the gap between a prepayment and a lease is the story: Fermi’s latest quarterly filing ties its land lease and an equipment loan to customer agreements due by Dec. 31, 2026.

On its November 12 earnings call, management said the $200 million wire is due November 13, that construction mobilization is targeted by December 1, and that lease negotiations are “very far along,” without giving a signing date. Fermi’s earnings release also said a prior lease with TensorWave, signed in August 2026 for 222 MW, was terminated.

Fermi reported a third-quarter net loss of $141.6 million and no revenue. It held $315.5 million in cash and restricted cash at September 30, of which $286.3 million was unrestricted, against net debt of $958.4 million.

A Prepayment Is Not a Lease: What Fermi Has and Has Not Disclosed

A prepayment is cash paid ahead of a contract. A lease commits a tenant to pay for capacity over a fixed term. Fermi has described the first but not the second, and it has not said whether the $200 million is refundable if no lease follows.

An investment-grade credit rating also does not equal a binding commitment. The rating measures a company’s ability to repay debt; it does not obligate that company to sign a lease. Fermi has not named the hyperscaler, so readers cannot check the rating or the counterparty’s history with similar prepayment structures.

Why Behind-the-Meter Gas Power Is the Scarce Asset, Not the Building

Project Matador is a behind-the-meter campus: generation sits on site and feeds the data halls directly, rather than waiting years in a grid interconnection queue, which is how Enverus defines behind-the-meter power. Texas environmental regulators approved 93 gas units for the campus in February 2026.

That matters because of how combined-cycle plants work. A gas turbine’s exhaust heat drives a heat recovery steam generator, which feeds a steam turbine. The second stage extracts more electricity from the same fuel than a simple-cycle plant can. In its July 21 release, Fermi said three Siemens SGT6-5000F gas turbines, rated up to 780 MW in simple-cycle mode, had arrived at the Port of Houston to anchor what it expects to be the nation’s largest combined-cycle natural gas project.

Large turbines are in short supply. GE Vernova’s CEO told analysts its gas turbine capacity is mostly sold out through 2030, and Siemens Energy’s chief has described delivery dates stretching to 2029 and 2030. A campus that already holds turbines and permits has something a competitor cannot build quickly.

The trade-off is cost and risk concentration. Private generation shifts reliability and fuel-supply risk from a utility to the developer and its tenant, and the equipment is financed with debt that comes due whether or not a tenant signs.

Lender and Landlord Deadlines Converge on Dec. 31, 2026

Fermi’s Q3 10-Q filing, covering the period ended September 30, 2026, sets out the clock:

• A lender waiver has already removed one deadline. In an October 8-K filing, Fermi disclosed that an amendment to its MUFG equipment loan eliminated the covenant requiring a lease or offtake arrangement for 400 MW by November 10, 2026, and removed a potential increase in required amortization. Amendment fees totaled $25 million.
• A separate facility under the Keystone Master Loan Agreement requires mandatory prepayment if an approved customer agreement has not been received by Dec. 31, 2026, according to the 10-Q.
• The Texas Tech University System, Fermi’s landlord, must issue a notice to proceed by Dec. 31, 2026, conditioned in part on a lease with a Phase 1 tenant of at least 200 MW, and may terminate the land lease if it does not. Texas Tech Chancellor Brandon Creighton has said the system “remains firmly committed to the success of Project Matador.”

The filing also says conditions raised substantial doubt about Fermi’s ability to continue as a going concern before management’s plans, that management concluded those plans alleviate the doubt, and that there is no guarantee they will succeed. Management also said it expects to defer, scale or renegotiate the timing and amount of some obligations.

Does Project Matador Fall Under the Texas Data Center Pause?

On September 21, 2026, Gov. Greg Abbott directed the Texas Commission on Environmental Quality to pause issuance of all permits related to data center projects until the Electric Reliability Council of Texas completes its review. Bracewell’s analysis of the order says the pause applies regardless of grid use, including islanded or behind-the-meter projects, and expects the ERCOT audit in mid-December 2026. The order does not directly address permits already issued.

Fermi already holds an air permit covering 93 gas units, and management has said the site has the permitting needed so far for a customer to begin construction. Whether the pause touches Fermi’s pending application for additional capacity has not been confirmed, and TechTarget reported that TCEQ has not clarified its scope for projects outside the ERCOT grid.

Texas’s large-load rule, Senate Bill 6 sets 75 MW as the threshold for facilities facing new interconnection requirements on the ERCOT grid. Matador’s utility service comes from Xcel Energy’s Southwestern Public Service Company under a 200 MW Electric Service Agreement delivered over a 115 kV line rather than from ERCOT.

What Should Readers Watch Before Dec. 31?

Four signals would settle the matter: a signed lease or refund terms for the $200 million, a waiver or extension of the Keystone requirement, a notice to proceed from Texas Tech, and the ERCOT audit due in mid-December. Absent a signed lease, the prepayment announcement stays a statement of intent, not revenue.

Frequently Asked Questions

What is the difference between a hyperscaler prepayment and a lease?

A prepayment is money paid in advance, and its terms decide whether it is refundable. A lease is a signed obligation to pay for capacity over time. Fermi says it has the former and has not disclosed refund terms.

Why does behind-the-meter gas power matter for AI data centers?

On-site generation avoids waiting in a grid interconnection queue and gives the operator control over supply. It also puts equipment cost and fuel risk on the developer.

What happens if Fermi misses the Dec. 31, 2026 deadlines?

Per its Q3 10-Q filing, the Keystone facility requires mandatory prepayment and Texas Tech may terminate the land lease. Fermi has said it expects to defer, scale or renegotiate some obligations.

Is the hyperscaler’s investment-grade rating a guarantee the deal closes?

No. A credit rating assesses ability to repay debt and does not bind a company to sign a lease. The counterparty has not been named.