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Siemens invests in Skeleton Technologies and gains exclusive rights to sell its supercapacitors into data centres

. Source published 14 Oct 2026. Analysis written 21 Oct 2026. Original reporting: Siemens (opens in a new tab).

What changed

Siemens announced on 14 October 2026 a strategic investment in Skeleton Technologies and an exclusive global partnership to sell and scale Skeleton's products in the data centre market. Siemens will integrate Skeleton's supercapacitor systems, which absorb fast power swings and support peak shaving, into its electrical infrastructure portfolio. Siemens says the systems can be used in existing AC designs and retrofits and give a path towards future 800 V DC designs. Siemens has been a technology partner since 2022 and an investor since 2023. Skeleton said the round values it at more than 1 billion USD and that it plans to invest more than 200 million USD in US scale-up and R&D, including US cell manufacturing. The investment amount was not disclosed, and the transactions complete after customary formalities.

Why it matters Editorial analysis

AI training loads can swing by megawatts within seconds, which stresses UPS systems, generators and the grid connection. Fast storage close to the IT load is becoming a product category of its own, separate from batteries sized for backup time. Energy savings and GPU performance gains quoted by Skeleton are company claims that buyers should test against their own load profiles.

Questions a buyer should ask

  • Where in the power train do the supercapacitors sit (rack, row or UPS level) in the Siemens offering?
  • How are they rated in power and duration, and how do they interact with existing UPS controls?
  • What independent test data supports the energy and GPU performance claims?

Read the original: Siemens: Siemens invests in Skeleton Technologies and gains exclusive rights to sell its supercapacitors into data centres (opens in a new tab)
We summarise in our own words and link the source. Figures are as reported by the source and not independently verified. Report a correction.

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