Cipher Mining Sees AI Demand Holding Strong as Power Scarcity Drives Data Center Leases

Key Points

• AI infrastructure demand remains strong, according to Cipher Mining CFO Greg Mumford, with scarce power—not weakening tenant interest—continuing to drive data center leasing. Lease terms are also improving, with 20-year triple-net structures increasingly becoming standard.
• Cipher’s Barber Lake project illustrates the potential long-term value of AI data centers, with a lease commitment representing $5.2 billion in contracted revenue over a subsequent decade and initial financing backed by Google through Fluidstack.
• Higher interest rates, credit spreads, labor constraints and construction risks are increasing financing costs, while Texas permitting and regulatory reviews could affect timelines. Cipher plans to manage these pressures through disciplined underwriting, capital recycling and potential asset monetizations.

Cipher Mining NASDAQ: CIFR CFO Greg Mumford said demand for AI infrastructure remains strong despite investor concerns over financing costs, construction execution and regulatory uncertainty, arguing that scarce power availability continues to be the primary constraint for prospective data center tenants.

Speaking at KBW's inaugural AI Infrastructure Summit, Mumford said the company is in a period where investors are concentrating more heavily on its ability to physically deliver projects than on its ability to sign new leases. Cipher has signed leases and financed projects, he said, but is now in the construction phase before related cash flow begins appearing in its income statement.

“There are certainly a bunch of risks, some of them real and that deserve a healthy amount of respect,” Mumford said. He cited higher interest rates, increased debt issuance, construction complexity, tight labor markets and supply-chain pressure. However, he said concerns that underlying AI infrastructure demand is weakening are overdone.

“We are continuing to see ... lease terms improving despite the backdrop in equity markets,” Mumford said. “I still think scarce power is the constraint and demand is not changing from what we can see.”

Barber Lake Lease Points to Long-Term Asset Value

Mumford highlighted Cipher's Barber Lake facility in Texas as evidence of what he described as long-term value in AI data center assets. The company disclosed a lease commitment beginning 10 years in the future that adds $5.2 billion in contracted revenue over the subsequent decade, he said.

The first 10 years of the Barber Lake arrangement are under a lease with Fluidstack that is supported by a Google backstop, according to Mumford. Cipher structured debt on the project to fully amortize during that first term. By the start of the second 10-year lease, which directly faces an AI lab, the data center is expected to be substantially delevered, he said.

Mumford said AI campuses have different site requirements than conventional cloud data centers, including more land, significant power availability, room to expand and access to skilled labor. He argued that locations such as West Texas, Louisiana, Indiana and North Dakota could become top-tier markets for AI campuses even if they were not historically primary cloud data center markets.

He also said lease structures across the industry have strengthened. Terms initially centered on 10-year modified gross leases, but 20-year triple-net leases are increasingly becoming the baseline starting point in discussions, he said.

Texas Regulatory Process May Affect Timing

Cipher's Colchis project received conditional base-load status for 1 gigawatt in ERCOT's Batch Zero process, with final designations expected following an audit in December. Mumford called the potential 1-gigawatt designation a significant development for the company.

He said the Texas Commission on Environmental Quality's pause on data center permits until audits are complete could affect project timing, but he does not expect the process to weaken fundamental demand. Sites that already have approvals or sit outside processes that delay development could become more valuable to tenants, he said.

“Time to power and scarcity still drive most decision-making that we are seeing on the leasing front,” Mumford said.

While he declined to discuss demand at specific projects during a quiet period, Mumford said Cipher maintains active discussions with major hyperscalers, chip developers and other potential tenants with strong credit profiles.

Financing Costs Rise as Investors Focus on Execution

Mumford said both benchmark interest rates and credit spreads for data center debt have increased. He attributed the widening spreads partly to investor attention on risks between lease signing and completion of a data center, including construction execution, labor availability and equipment procurement.

He said Cipher intends to protect returns by underwriting higher financing and equipment costs into new projects. Rather than relying only on higher lease rates, developers can use other contractual provisions, including delivery-service-level agreements, termination terms and pre-agreed cost-sharing arrangements, to manage risks.

Cipher's prior project bonds were priced progressively tighter, with Cipher Compute at 7.13%, Black Pearl Compute at 6.13% and Stingray at 6%, according to the discussion. Mumford said the company's bonds continue to trade near par and at what he described as relatively efficient yields compared with peers, though future financing would likely carry higher costs.

“The cost may change, but I don't think our access to capital is diminishing,” he said.

Capital Recycling and Industry Consolidation

Looking ahead, Mumford said Cipher expects capital recycling to be central to its business model. Potential options include refinancing stabilized assets, monetizing portions of projects or selling entire assets, he said. The company plans to evaluate each option based on its ability to create returns for equity holders without dilution.

He also said the AI infrastructure sector could eventually consolidate around companies that can originate sites, execute construction, secure efficient financing and recycle capital. Cipher has developed in-house engineering, procurement and construction management capabilities, along with greenfield site origination and financing operations, he said.

On construction costs, Mumford said capital expenditure per megawatt depends on tenant specifications, including redundancy requirements, backup generation and cooling systems. Cipher's project budgets include land, permitting, engineering, development fees and other costs required to take a project from site acquisition through delivery, he said.

About Cipher Mining (NASDAQ:CIFR)

Cipher Mining Inc is a digital asset mining company focused on developing and operating infrastructure for Bitcoin mining in the United States. The company runs large-scale data centers equipped with specialized application-specific integrated circuit (ASIC) machines that process transactions and secure the Bitcoin network.

In addition to mining Bitcoin, Cipher Mining develops and manages the supporting infrastructure required for its operations, including power procurement, electrical systems, cooling, site development and data center management.

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