Hitachi Energy vs Siemens
Hitachi Energy and Siemens are both placed on 3 of the same AI data center parts in this catalog, spanning layer 7. Hitachi Energy appears on 9 parts in total and Siemens on 15.
At a glance
| Hitachi Energy | Siemens | |
|---|---|---|
| Ownership | subsidiary | public |
| Headquarters | Zurich, Switzerland | Munich, Germany |
| Primary listing | none in catalog | SIE.DE |
| Market cap | 196.3B EUR | |
| Parts placed | 9 | 15 |
| Layers covered | 2 | 3 |
| Units / subsidiaries | 0 | 2 |
| Seen in machines | 0 | 0 |
Market caps are a nightly snapshot in each listing's own currency, never converted.
What the shared parts are
- MV switchgear, E-houses, power skids — Medium-voltage switchgear packaged into pre-fabricated electrical houses (E-houses) or skids that distribute power across a campus and can be factory-built and shipped as modules.
- MV/LV transformers — Step-down transformers that take medium-voltage distribution down to the low voltage used inside a building, available in pad-mount (outdoor, oil-filled) and dry-type or cast-resin (indoor) designs.
- 800 V DC architecture & solid-state transformers — An emerging DC power distribution architecture, using 800 V DC in place of the AC busbar and power-shelf approach current racks use, paired with solid-state transformers (SSTs) that could replace multiple stages of conventional AC transformation.
The 3 parts both make
| Part | Hitachi Energy | Siemens |
|---|---|---|
| MV switchgear, E-houses, power skids Layer 7 — Electrical: power distribution (grid to rack) | manufacturer inferred | manufacturer inferred |
| MV/LV transformers Layer 7 — Electrical: power distribution (grid to rack) | manufacturer inferred | manufacturer inferred |
| 800 V DC architecture & solid-state transformers Layer 7 — Electrical: power distribution (grid to rack) | manufacturer inferred | manufacturer inferred |
Only Hitachi Energy
- Large power transformers (345–765 kV) & substations layer 7
- HV switchgear, GIS, breakers, protection relays layer 7
- SF6-free layer 7
- SSTs (emerging) layer 7
- HVDC layer 8
- STATCOM and synchronous condensers layer 8
Only Siemens
- Building management, controls, environmental sensors layer 6
- LV switchgear, switchboards, panelboards layer 7
- Busway / busbar trunking layer 7
- Circuit protection, fuses, surge, grounding layer 7
- Metering, power quality, monitoring layer 7
- DCIM, digital twins, capacity planning layer 11
- Fans and motors layer 6
- Valves and actuators layer 6
- PLCs layer 6
- Detection layer 6
- and 2 more on Siemens's page.
Questions
- Do Hitachi Energy and Siemens compete?
- In this catalog they are both placed on 3 of the same parts, across 1 layer: MV switchgear, E-houses, power skids, MV/LV transformers, 800 V DC architecture & solid-state transformers. Sharing a part does not mean selling the same product to the same buyer, so read each row's product note.
- Which has more placements, Hitachi Energy or Siemens?
- Hitachi Energy has 9 placements and Siemens has 15. Placement counts reflect how thoroughly each company has been catalogued as well as its real breadth, so they are not a ranking.
Generated from the catalog's part-to-company table. Each placement is tagged disclosed, reported or inferred; see sources & method. Neither company is endorsed or ranked here.