Bitcoin Miner IREN's First 50 MW Delivery to Microsoft: $9.7 Billion Deal Comes to Life
According to The Block, IREN completed the first 50 MW Horizon AI cloud installation for Microsoft under a $9.7 billion, five-year contract signed in Nov 2025. Horizon 1 at its Childress, Texas campus uses Nvidia GB300 NVL72 GPUs and liquid cooling, and reached Nvidia Exemplar Cloud status after testing. Remaining phases should deliver by 2026, with targets of 480 MW in 2026 and 1.2 GW in 2027. IREN shares rose 2.6% to $45.22.
How this was made
The 30-second read
Why it matters
Completion of Horizon 1 (50 MW) and achieving Nvidia Exemplar Cloud status is a tangible execution milestone that can improve perceived delivery reliability for the Microsoft-linked buildout plan.
Market read
Traders can reassess IREN’s execution trajectory and deal credibility after the first 50 MW delivery milestone and Nvidia validation.
What to watch
Execution risk remains in the remaining three phases, and the article does not quantify revenue recognition timing, margins, or any potential GPU supply or cooling-system performance constraints beyond the initial test.
Background
IREN is transitioning from Bitcoin mining to AI infrastructure services via a five-year Microsoft agreement signed in November 2025.
Ticker impact
IREN says it completed Horizon 1, the first 50 MW AI cloud delivery under its $9.7B Microsoft contract, using Nvidia GB300 GPUs.
Likely near-term positive bias as investors price progress toward the remaining 150 MW (2026) and higher 2026/2027 capacity targets.
The article provides a concrete milestone (Horizon 1 completion and Nvidia Exemplar Cloud status) plus deal-linked financing details, which are actionable for execution and demand expectations.
Market effects
Highlights continued shift of power-intensive miners toward AI infrastructure services, potentially supporting the AI data-center buildout narrative for the group.
Texas campus deployment underscores ongoing AI capacity build in US power-constrained regions, with local grid and power procurement relevance.
Reinforces hyperscaler outsourcing of AI compute infrastructure and Nvidia platform validation via Exemplar Cloud status.
Counterpoint
A single 50 MW milestone may not materially change IREN’s earnings power until the remaining 150 MW phases and larger 2026/2027 capacity ramps are delivered.
Key entities
- public_companyIREN
Bitcoin miner transitioning to AI cloud infrastructure; delivered Horizon 1 at its Childress, Texas campus.
- public_companyMicrosoft
Hyperscaler customer under a $9.7B five-year AI cloud contract with IREN.
- public_companyNvidia
GPU platform provider; Horizon 1 achieved Nvidia Exemplar Cloud status after testing.
