AI Data Center Boom Meets Capital, Power and Grid Constraints

By Tom Whitfield

IREN delayed a goal of more than $4 billion in operating annual recurring revenue (ARR), moving the target from year-end to January. Management said the deadline could slip to the end of February.

On November 4, Wall Street closed higher after Democrats won Congress, yet data center stocks fell sharply. IREN disclosed the ARR delay the next day.

How hard did data center stocks fall?

Over the past month, the selloff punished former Bitcoin miners that turned power sites into AI hosting businesses.

• Cipher Digital: down 55.05%.
• IREN: down 44.07%.
• Hut 8: down 41.04%.
• Galaxy Digital: down 36.17%.
• Core Scientific: down 26.22%.

Third-quarter earnings show demand for AI computing remains strong. Companies that already have both money and approval will move ahead of the rest.

Is demand for AI compute still growing?

AWS revenue rose 39%, its fastest growth in nearly five years, and its backlog reached $578 billion. AWS's parent expects about $220 billion of capital spending in 2026 and plans to spend “meaningfully more in 2027.”

CEO Andy Jassy said: “Almost as fast as we install capacity, customers are gobbling it up.”

Galaxy puts U.S. data center vacancy at 0.9%. Former miners have turned that shortage into long-term contracts with AI tenants.

• Core Scientific reports more than $24 billion in backlog.
• IREN reports $20.3 billion in backlog.
• Hut 8 values its AI portfolio at about $26.6 billion.

The demand case remains intact, while funded and powered capacity has become the scarce asset.

Where does the capital pressure appear?

IREN management told analysts that “capital markets have become more selective in the last few weeks.” The company still needs to raise $6 billion for planned fiscal 2027 spending.

Core Scientific CEO Adam Sullivan was more direct: “capital is the throttle on all new development.” He said developers running out of money have started selling powered land and half-built projects.

Galaxy also turned down lease terms on its Helios II expansion over the summer. Christopher Ferraro explained: “An investment-grade wrap that does not actually achieve investment-grade protection for both our debt and our equity is not really an investment-grade wrap.”

Construction costs are rising as well. At Barber Lake, Cipher paid $359 million of $409 million in change orders requested by its tenant.

Funding now sets the pace of new construction, while tenant credit and build costs decide which contracts can close.

Can state politics delay new capacity?

Texas Governor-elect Gina Hinojosa pledged to stop new data center approvals until lawmakers protect electricity customers, water supplies and local communities. Her pledge would add to restrictions already imposed by outgoing Governor Greg Abbott.

In New York, Governor Kathy Hochul imposed a one-year moratorium in July on new hyperscale permits for facilities of at least 50 MW. Political risk now reaches directly into the permitting schedule.

Which developers already have grid access?

• IREN's 1.4 gigawatt Sweetwater 1 site is already connected to the grid.
• Hut 8 secured $3.25 billion and $4.25 billion of investment-grade project bonds with no claim on the parent company.
• Cipher's 1 gigawatt Colchis site holds only a conditional grid classification.
• Galaxy's Caspian project was downgraded to study load, and the company does not expect clarity until April 2027.

The difference now comes down to power secured today and project debt that does not depend on the parent company.

What do the December deadlines decide?

• December 10, 2026: Hut 8 expects the results of Texas data center audits.
• December 17, 2026: ERCOT final classifications in the Batch Zero process fall due.
• January: IREN's revised operating ARR deadline arrives, and Core Scientific expects about $650 million from expiring warrants.

A clean audit and grid classification would clear the way for Hut 8 to finance Beacon Point Phase 2. If Hinojosa's freeze reaches projects already in ERCOT's queue, developers with only announced plans will face it first, while operators already connected to the grid keep collecting rent.

By April 2027, the gap should be clear: funded, connected sites can convert a 0.9% vacancy rate into revenue, while sites waiting on capital or grid classification risk falling behind their contracted demand.