IREN’s new Chief Innovation Officer

A few months ago, IREN appointed John Gross as their new Chief Innovation Officer, a role in which he'll be pivotal to the development of the company's AI data centers.

The Wall Street Journal recently ran a piece on him that I think is worth commenting on.

Gross specializes in high-density & liquid cooling infrastructure, with over 20 years of experience in the space. That makes him a critical hire for IREN, given their emphasis on designing & developing all data center infrastructure in-house.

What I particularly found interesting about the WSJ article is that it goes into Gross's approach and philosophy.

He comes across as a very hands-on guy and not some office dweller. He likes being on the ground where the actual liquid cooling tech is being installed and tested, working together with construction crews to fix problems that can't always be foreseen months in advance.

Great to see IREN's CIO with this kind of attitude. Getting his hands dirty when he needs to and leaving his ego at the door. He's clearly all about pushing IREN forward and getting things done.

He also pushes back pretty directly against the industry default, which has historically been very risk-averse.

He says the industry “loves innovation as long as it’s 10 years old”, which is pretty funny.

That risk-averse, slow mindset clearly doesn’t work in AI, where chip generations turn over every 12-18 months and thermal envelopes keep climbing.

This kind of attitude combined with IREN's broader culture is what makes them a disruptive force in the industry that can really challenge the status quo.

Gross also called AI data center tech a bit of a poker game. You can't sit on the sideline waiting for the chip roadmap to be 100% clear, you have to read what's coming and place your bets early.

IREN has clearly been great at this. Horizon was designed early last year to be future-proof for next-gen chips, more than a year before the official Rubin specs came out. Back then estimates were that Rubin would require densities of ~300 kW per rack, so IREN's 200 kW design may have looked inadequate initially.

They were obviously proven right...

I know IREN execs had a very tight relationship with NVDA well before the official partnership was made public.

That kind of access gives you early visibility into where the industry is heading years in advance, and that's exactly where close ties to NVDA pays dividends as it relates to developing next-gen infrastructure.

Gross also commented on IREN's iterative improvement loop, where lessons from each build feed back into the next design cycle.

This reminds me very much of what David Shaw, IREN's Chief Operating Officer, told me about a year ago when I visited the Childress site with @FransBakker9812 and a few other friends.

Shaw and the other ops execs really emphasized the same design and development philosophy of replication and continuous improvement.

Every individual new build is slightly different from the last as the team implements lessons learned from the previous one. That will mean Horizon 2 will have improvements over Horizon 1, Horizon 3 over Horizon 2, and so on.

The advantage of that approach is that it directly leads to faster, cheaper, and more robust builds, which is a critical trait when you're developing a gigawatt-scale data center portfolio.

This isn't something they started doing recently either. It has been part of the company's DNA since day one.

It only works because of IREN's very flat hierarchy and very healthy work culture, which encourages every construction crew member to spot flaws or find better ways of doing things.

This is also how they managed to bring the development cost per MW of their air-cooled data center shells down from 750k/MW to 600k/MW.

Going forward this is going to be one of the key competitive differentiators.

While other neo-clouds heavily rely on a patchwork of developers across their data center pipeline, IREN is the head contractor on 100% of their projects.

The amount of operational experience they'll accumulate as they rapidly scale will become unmatched and very difficult to catch up to.

I also must say, this WSJ article is a real win for IREN on the IR and marketing front, and they deserve credit for setting it up.

The company's comms had undoubtedly been pretty weak leading up to the recent earnings call, but over the past 3 weeks they've gotten noticeably better imo.

From the CEO’s mega thread here on X that cleared up a lot of confusion to now this WSJ collab… these are real positive moves from the team and they're worth praising.

Overall the WSJ piece does a great job giving us good visibility into Gross himself and his role at IREN, as well as the company's broader strategic positioning.

I really enjoyed going through it. Definitely worth a read.

partners.wsj.com/iren/b…