Confirmed in a primary source 21 Sept 2026 Infrastructure

Nvidia began certifying the batteries and cooling gear that go into AI data centres, and named the first six suppliers.

On September 21 Nvidia launched DSX Ready, a programme that qualifies other companies' power and cooling equipment against its own AI factory reference design, and published the first list: battery storage from Hitachi Energy, LG Energy Solution and Tesla, and cooling distribution units from LG Electronics, LiquidStack and Vertiv. The caveat that matters is that this is a qualification badge, not a purchase or an exclusivity deal, and Nvidia has not published the technical thresholds a product must meet to earn it.

Until now

Nvidia's reach stopped at the rack, and the electrical and cooling plant was chosen by the data centre developer and its engineers.

Now

Read the supplier list for power and cooling equipment as something a chip company now shapes, and watch whether being unlisted starts to cost sales.

For most of the last three years the argument about Nvidia's position has been about allocation: who gets the chips, in what quantity, and when. This is a different lever. By publishing a qualification list for batteries and cooling distribution units, Nvidia puts itself between the data centre developer and its electrical contractor, in a category where it sells nothing. A developer spending billions on a site designed around Nvidia racks has an obvious reason to buy listed equipment, and a supplier that is not listed has to explain why. The programme extends the reference design outward from the processors into the plant, and the plant is where the money and the lead times have moved as sites have got denser.

The first list is worth reading for who is on it. Tesla and LG Energy Solution in batteries puts two very large cell manufacturers inside an AI supply chain they were not part of; Vertiv and LiquidStack in cooling are specialists that were already there; Hitachi Energy and LG Electronics are industrial incumbents. That mix is the point: the categories Nvidia chose are the two that have become physical bottlenecks, power buffering and liquid cooling, and they are the ones where a data centre's schedule now slips. What is missing is the standard itself. Nvidia has published who passed without publishing what they passed, which makes the list an endorsement rather than a specification. Read the supplier list for power and cooling equipment as something a chip company now shapes, and watch whether being unlisted starts to cost sales.

How it got here

Aug 27
A United States grid-emergency executive order puts data centre power under emergency rules, with implementation due around December 24. Carded in Edition 002.
Sep 16
The House votes 417 to 3 to make data centres pay for the transmission built to serve them. Carded in Edition 024.
Sep 18
Virginia signs an order making large data centres harder to build there. Carded in Edition 026.
Sep 21
Nvidia launches DSX Ready and names the first qualified battery and cooling suppliers: Hitachi Energy, LG Energy Solution, Tesla, LG Electronics, LiquidStack and Vertiv.
Who has to react
Every power and cooling supplier not on the list, starting with Schneider Electric, Eaton and the Chinese battery makers; Tesla's energy division, which just acquired an AI distribution channel without building anything; the data centre developers whose engineering choices now have a published preferred answer; AMD and Broadcom, who have no equivalent programme; the utilities negotiating interconnection with sites whose buffering equipment is now specified by a chip vendor; and the procurement teams who will have to justify buying unlisted equipment.

The evidence

ObservedMonday September 21, 2026. Nvidia announced DSX Ready on its own blog, describing it as a qualification program for partner products and solutions that meet applicable NVIDIA DSX AI factory reference design requirements.

The whole observation, as recorded

The first qualified products fall in two categories. Battery energy storage systems: Hitachi Energy, LG Energy Solution and Tesla, whose Megapack is among the first named. Cooling distribution units: LG Electronics, LiquidStack and Vertiv. What the programme covers is the plant around the computers rather than the computers: the batteries that ride through the power swings an AI training cluster creates, and the units that move liquid coolant to the racks. What Nvidia has not published is the substance: the blog describes category-specific requirements and applicable functional requirements without stating the thresholds, so what a supplier must actually demonstrate to be listed is not public. The qualification is a listing, not a contract; no purchase volume, no exclusivity and no pricing is attached. Around it, the market read it as a customer list: LG Electronics shares rose on the day it was named.

Established

Nvidia launched the DSX Ready qualification programme on September 21, 2026, for partner products meeting its DSX AI factory reference design requirements.
The first qualified battery energy storage systems are from Hitachi Energy, LG Energy Solution and Tesla.
The first qualified cooling distribution units are from LG Electronics, LiquidStack and Vertiv.
Nvidia's announcement describes category-specific and functional requirements without publishing the thresholds products must meet.

Not established

That Nvidia is buying any of this equipment. The programme qualifies products for other people to buy.
That unlisted suppliers are excluded. Nothing in the programme prevents a developer specifying whatever it likes, and most of the market is not listed.
That the qualification means anything technically. Without published thresholds, an outsider cannot tell what passing requires.
That this addresses the grid problem. Qualifying batteries does not create generation, transmission or an interconnection queue slot.

Why it weighs this much

Signal strength

CostLow

CommitmentMedium

ReversibilityModerate

PersistenceYears

Cost is low. Nvidia spent engineering time defining requirements and testing partner products; it committed no capital and bought nothing. Commitment is medium: naming six companies publicly creates an expectation and a list that is awkward to withdraw, and the partners have spent real money qualifying. Reversibility is moderate, since a programme can be quietly retired, though the designs built around it cannot. Persistence is years, because data centre plant is specified once and lives for a decade, so a qualification that steers a design today is still in the building in 2036. We score this modestly on purpose: it is a badge, not a purchase, and the thresholds behind it are unpublished.

What to watch

strengthens A named data centre operator or developer states that DSX Ready qualification is a requirement or preference in its procurement, or Nvidia extends the programme to a third equipment category, by June 30, 2027.
weakens Nvidia publishes the full technical requirements as an open specification, or a competing reference design from AMD, Broadcom or an industry body qualifies the same equipment categories independently, by June 30, 2027.

The words

Reference design: A vendor's specification for how to build a complete system around its product. Following it is optional, but deviating means solving the integration problems yourself.
Battery energy storage system: Large batteries installed beside a data centre. In AI sites they absorb the sharp swings in demand that training runs create, which the grid cannot follow.
Cooling distribution unit: The equipment that pumps liquid coolant to the server racks. High-density AI racks cannot be cooled by air alone, which is why this became a named category.
Qualification programme: A vendor testing other companies' products against its own requirements and publishing a list of those that pass. It sells nothing directly and steers procurement.

Your call

Which explanation do you believe?

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