What is the Groves reactor? A dubious experiment?

Oklo released a Texas fact sheet in response to questions Lockhart Nuke Watch asked about the Preliminary Documented Safety Analysis (PDSA) for the Groves site Oklo is building in Lockhart.

The most significant takeaway: Oklo confirms that Groves will not be a VIPR reactor. So the prior analysis on this site, which was based on VIPR (the best guess available from public open sources at the time) is not immediately applicable to Groves. That analysis is still archived. It may be useful to other communities who are getting a VIPR.

So if Groves isn’t a VIPR… what exactly is it?

That’s the purpose of our FOIA requests. Lockhart Nuke Watch wants our community to know what exactly is being built here, because Oklo isn’t saying what it is at all… just what it isn’t:

What Groves isn’t

  • It’s not a power reactor.
  • It’s not a VIPR (commercial scale isotope reactor).

The key phrase in the press release: “being developed to build operating experience for future isotope production systems”

So add to that list of what it isn’t:

  • It’s not commercially viable
  • It’s not producing “life-saving cancer therapies”

Reading between the lines of corporate press release-ese, the Texas Q&A leads some group members to conclude that Groves is a science experiment. It uses real uranium nuclear fuel in some unknown quantity which will produce some unknown amount of thermal energy that needs to be dissipated and some unknown amount and types of waste products in a pool of water (that goes where?).

These unknowns are why Lockhart Nuke Watch has submitted FOIA requests to the NRC and DOE.

What Groves appears to be

Groves appears to be an expensive proof-of-concept demonstration. Analysts suggest it is desperately needed to prop up the valuation of Oklo stock with investors by hitting an arbitrary criticality date of July 4, 2026.

As far as can be discerned from public disclosures, Oklo has yet to produce a single dollar of revenue in 2026. Not profit, mind you. Revenue. Normally a quarterly report mentions P&L (Profit and Loss). Oklo is only taking the L here. This is a startup that is hurling towards the end of their runway of cash.

Another science experiment doesn’t seem likely to actually move the needle on that. In fact, it isn’t going so well for Oklo right now.

Will Lockhart be left holding the bag (of dirty water)?

Lockhart Nuke Watch asks, is this a ploy to lure investors, until Oklo turns a profit? That’s the big tech startup world. The problem here is they seem to be making it at Lockhart’s expense.

Let’s be clear about what really matters here: our land, our water and our future.

As far as Oklo’s claims of supporting the local community, Lockhart Nuke Watch views the outcome may end up something like this: Oklo manages to lure investors until they see a profit – the area doesn’t see much in the way of jobs or benefit.

Lockhart is left with a radioactive pool of water from a demonstration spark intended to keep the money flowing just a little bit longer.

It’s not over

With a nuclear facility built, Oklo would need to go through another approval process to use the site for other purposes. Oklo hasn’t ruled this out. This could become a backdoor for more nuclear activity needing review and oversight.

Oklo hasn’t revealed their intentions for the site after they get their Fourth-of-July spark in a tank. Without clear disclosure of health and safety protocols, this creates anxiety within the local area about how a nuclear accident will be handled.

One cannot imagine that Oklo would sink $20M into a site and that would be the end of it.

So, what’s next?

Will a site built out for an experiment suddenly pivot to something it wasn’t designed or built to specification for? Will Lockhart even be informed?