What Siemens Energy makes for data centers
public · HQ Munich, Germany · siemens-energy.com
Siemens Energy makes large power transformers and HV switchgear and GIS, including SF6-free switchgear under its Blue line, for the substations that feed data center campuses. It also supplies gas turbines for onsite and behind-the-meter generation, HVDC and STATCOM equipment for grid interconnection, and large heat pumps used in data center heat-reuse and district-heating projects. It was spun off from Siemens in 2020 and includes the Siemens Gamesa wind business.
Listing
Deutsche Börse (XETRA): ENR.DE· 119 EUR -2.00% · mkt cap 101.0B EUR
Snapshot 2026-10-25T10:41:17Z — nightly, not real-time.· Chart on TradingView ↗
Exposure
10 parts across 3 layers · 2 constrained
No disclosed data-center revenue share on file.
Parts, by layer
Layer 6 — Facility cooling & HVAC
| Part | Role | Confidence | Competitors | Note |
|---|---|---|---|---|
| Heat reuse & district heating interfaces | manufacturer | inferred | Alfa Laval, Carrier, Fortum, Trane, Danfoss, Everllence | large heat pumps |
Layer 7 — Electrical: power distribution (grid to rack)
| Part | Role | Confidence | Competitors | Note |
|---|---|---|---|---|
| Large power transformers (345–765 kV) & substationsconstrained | manufacturer | disclosed | CG Power, GE Vernova, Hyosung Heavy, Hyundai Electric, Končar, LS Electric | |
| HV switchgear, GIS, breakers, protection relays | manufacturer | inferred | Schneider Electric, ABB, Eaton, GE Vernova, Hyosung Heavy, Hyundai Electric | |
| SF6-free | manufacturer | disclosed | ABB, GE Vernova, Hitachi Energy | Blue |
| SSTs (emerging) | manufacturer | inferred | Delta Electronics, Ideal Power, Heliox, Hitachi Energy |
Layer 8 — Power generation & energy supply
| Part | Role | Confidence | Competitors | Note |
|---|---|---|---|---|
| Gas turbines (onsite / behind-the-meter) & HRSGsconstrained | manufacturer | inferred | Baker Hughes, Doosan Enerbility, GE Vernova, Kawasaki Heavy, Mitsubishi Heavy Industries, Ansaldo Energia | SGT-A; SGT-800 |
| Wind | manufacturer | inferred | GE Vernova, Goldwind, Nordex, Vestas, Envision | |
| HVDC | manufacturer | inferred | Furukawa, GE Vernova, Mitsubishi Electric, NKT, Nexans, Prysmian | |
| STATCOM and synchronous condensers | manufacturer | inferred | ABB, AMSC, GE Vernova, WEG, Hitachi Energy, Ingeteam | |
| Compression and gas handling | manufacturer | disclosed | Archrock, Baker Hughes, Caterpillar, Kodiak Gas, USA Compression, Ariel |
Where Siemens Energy sits in the stack
Siemens Energy's placements in this catalog cover 10 parts, from layer 6 (facility cooling & hvac) to layer 8 (power generation & energy supply). 2 of them are tagged constrained, meaning a sourced shortage rather than a long lead time. Across these parts it overlaps with other companies most often on the lines below.
What these parts are
- Large power transformers (345–765 kV) & substationsconstrained — Grid-scale transformers and switchyards that step transmission voltage down to what a data center campus can use, plus the substation civil works around them.
- Gas turbines (onsite / behind-the-meter) & HRSGsconstrained — Combustion turbines burning natural gas (or dual-fuel), paired with heat-recovery steam generators, used to generate power onsite or behind the meter at a data center campus.
- Heat reuse & district heating interfaces — Heat exchangers and interconnection equipment that export waste heat from a data center's cooling loop into a district heating network or other end use instead of rejecting it to atmosphere.
- HV switchgear, GIS, breakers, protection relays — The high-voltage switching, protection, and fault-isolation gear between the substation transformers and the campus's medium-voltage distribution, including gas-insulated (GIS) designs for compact sites.
- SF6-free — Breaker and switchgear designs that replace the potent greenhouse gas SF6 as an insulating medium, offered as an alternative to conventional gas-insulated switchgear.
- and 5 more in the table above.
Closest peers in this catalog
From the blog
Questions about Siemens Energy
- What does Siemens Energy make for AI data centers?
- This catalog places Siemens Energy on 10 parts: Heat reuse & district heating interfaces (manufacturer), Large power transformers (345–765 kV) & substations (manufacturer), HV switchgear, GIS, breakers, protection relays (manufacturer), Gas turbines (onsite / behind-the-meter) & HRSGs (manufacturer), SF6-free (manufacturer), SSTs (emerging) (manufacturer), Wind (manufacturer) and HVDC (manufacturer), and 2 more.
- Is Siemens Energy publicly traded?
- Yes — Siemens Energy is listed on Deutsche Börse (XETRA) under ENR.DE. Prices shown on this page are a nightly snapshot, not real-time, and nothing here is investment advice.
- Where is Siemens Energy based?
- Munich, Germany, per the company record in this catalog.
- Who else makes heat reuse & district heating interfaces for AI data centers?
- Alfa Laval, Carrier, Fortum, Trane, Danfoss and Everllence are also placed on Heat reuse & district heating interfaces in this catalog.
- How well sourced are these placements?
- Every part→company placement carries a confidence tag. For Siemens Energy the mix is 3 disclosed and 7 inferred. "disclosed" means the company or a filing says so; "reported" comes from trade press or a reference-design list; "inferred" is a lead from the taxonomy with no citation yet. Treat reported and inferred as leads, not facts.
Answers are generated from this catalog's own rows — see sources & method.
Verification: enriched, last verified 2026-08-27. Sources: www.siemens-energy.com · en.wikipedia.org.· Markdown · JSON