Microsoft requested 200 MW network reconfiguration after Horizon 1 handover
Company: IREN - Project: Childress
The claim, verbatim
After Horizon 1 was handed over to Microsoft, Microsoft requested a network infrastructure reconfiguration to support 200 MW of capacity for frontier models, and IREN agreed.
Source (primary)
IREN Ltd (IREN) Q1 2027 Earnings Call Highlights: AI Cloud Revenue Nearly Triples to $200 ... - Yahoo Finance (-, news_article)
View cached copy (2026-11-08)Live source ↗Archive.org ↗
Quote: “after Horizon 1 was handed over to Microsoft, the customer requested a network infrastructure reconfiguration to support 200 megawatts of capacity for the latest frontier models”
How we checked this
Checked on November 10, 2026. The cited source supports every part of this claim.
The earnings call summary says Co-CEO Daniel Roberts explained that Microsoft requested the 200 MW network reconfiguration after Horizon 1 was handed over, and that IREN agreed.
Confirmed in the source:
- Horizon 1 was handed over to Microsoft
- After the handover, Microsoft requested a network infrastructure reconfiguration
- The reconfiguration was to support 200 megawatts of capacity for the latest frontier models
- IREN agreed to the request
What we did: Read our cached copy of the publisher (https://finance.yahoo.com/technology/ai/articles/iren-ltd-iren-q1-2027-052040826.html?.tsrc\\u003drss) in full (17,021 characters, retrieved November 8, 2026) and checked each assertion in the claim against it.
Additional evidence
confirms IREN Ltd (IREN) Q1 2027 Earnings Call Highlights: AI Cloud Revenue Nearly Triples to $200 ... - Yahoo Finance
Quote: “after Horizon 1 was handed over to Microsoft, the customer requested a network infrastructure reconfiguration to support 200 megawatts of capacity for the latest frontier models”