ABB vs Siemens Energy
ABB and Siemens Energy are both placed on 3 of the same AI data center parts in this catalog, spanning layers 7, 8. ABB appears on 16 parts in total and Siemens Energy on 10.
At a glance
| ABB | Siemens Energy | |
|---|---|---|
| Ownership | public | public |
| Headquarters | Zurich, Switzerland | Munich, Germany |
| Primary listing | ABBN.SW | ENR.DE |
| Market cap | 122.5B CHF | 101.0B EUR |
| Parts placed | 16 | 10 |
| Layers covered | 4 | 3 |
| Units / subsidiaries | 0 | 0 |
| Seen in machines | 0 | 0 |
Market caps are a nightly snapshot in each listing's own currency, never converted.
What the shared parts are
- 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.
- STATCOM and synchronous condensers — Manufacturers of STATCOMs and synchronous condensers that stabilize grid voltage and provide reactive power support near large loads.
The 3 parts both make
| Part | ABB | Siemens Energy |
|---|---|---|
| HV switchgear, GIS, breakers, protection relays Layer 7 — Electrical: power distribution (grid to rack) | manufacturer inferred | manufacturer inferred |
| SF6-free Layer 7 — Electrical: power distribution (grid to rack) | manufacturer inferred | manufacturer disclosed |
| STATCOM and synchronous condensers Layer 8 — Power generation & energy supply | manufacturer inferred | manufacturer inferred |
Only ABB
- Building management, controls, environmental sensors layer 6
- MV switchgear, E-houses, power skids layer 7
- MV/LV transformers layer 7
- LV switchgear, switchboards, panelboards layer 7
- Busway / busbar trunking layer 7
- Floor PDUs, RPPs, static transfer switches, ATS layer 7
- Circuit protection, fuses, surge, grounding layer 7
- UPS (static, modular, rotary/DRUPS) & UPS power semis layer 7
- Metering, power quality, monitoring layer 7
- 800 V DC architecture & solid-state transformers layer 7
- and 3 more on ABB's page.
Only Siemens Energy
- Heat reuse & district heating interfaces layer 6
- Large power transformers (345–765 kV) & substations layer 7
- Gas turbines (onsite / behind-the-meter) & HRSGs layer 8
- SSTs (emerging) layer 7
- Wind layer 8
- HVDC layer 8
- Compression and gas handling layer 8
Questions
- Do ABB and Siemens Energy compete?
- In this catalog they are both placed on 3 of the same parts, across 2 layers: HV switchgear, GIS, breakers, protection relays, SF6-free, STATCOM and synchronous condensers. 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, ABB or Siemens Energy?
- ABB has 16 placements and Siemens Energy has 10. 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.