Producer
Siemens Energy AG
Siemens Energy AG (Munich, Germany; Xetra: ENR; spun off from Siemens AG in September 2020; ~€35B revenue) manufactures industrial gas turbines and centrifugal compressor systems for pipeline transmission applications. Key pipeline compression products: SGT-400 (13 MW), SGT-700 (32 MW), and SGT-800 (57 MW) industrial gas turbines coupled with STC-SH and STC-GH centrifugal compressor trains. Siemens Energy serves major European, Middle Eastern, and North American pipeline operators. Russian Gazprom historically used Siemens Energy gas turbines for its mainline compression on the Nordstream and Siberian pipeline systems — the 2022 Russia-Ukraine war and turbine sanctions created a supply crisis for Gazprom compression maintenance, demonstrating the geopolitical entanglement of pipeline compressor supply chains. Primary manufacturing at Ludwigshafen, Germany and Berlin. Siemens Gamesa (renewable energy) is majority-owned by Siemens Energy.
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Inputs supplied
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Goods downstream
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Facilities
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Stories
What they make
5 inputs Siemens Energy AG supplies
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manufactured
Natural gas compressor stations & engines →
manufactured
Large Power Transformers (LPTs) & Generator Step-Up Units →
manufactured
High-Voltage Transformer Bushing (EHV) →
manufactured
On-Load Tap Changer (OLTC) for Voltage Regulation →
manufactured
Large Power Transformers (LPTs) & Generator Step-Up Units →
Where it shows up
Goods downstream
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Where they make it
4 facilities
Siemens Energy Charlotte NC Transformer Plant →
USNorth Carolina · manufacturing
$150M investment announced; Siemens Energy transformer factory in Charlotte area; expected production start early 2027; adds US domestic LPT capacity
Siemens Energy Charlotte Transformer Plant →
USCharlotte, North Carolina · manufacturing
US-based Siemens Energy LPT plant serving domestic utility market. Produces 100–500 MVA transformers. Combined with Guadalajara Mexico production, Siemens Energy has the most flexible North American supply offering. Charlotte is the US domestic option; Guadalajara is the USMCA cost-competitive alternative.
Siemens Energy Gas Turbine Manufacturing (Berlin/Ludwigshafen) →
DEBerlin · manufacturing
Siemens Energy industrial gas turbine manufacturing is split across Berlin (SGT-800, SGT-5000F large frames; Siemens Huttenstrasse) and Ludwigshafen am Rhein (mid-size SGT-400, SGT-700; compressor casings and rotating assemblies for pipeline packages). Berlin has been the center of Siemens industrial gas turbine manufacturing since the 1950s. The Russia-Ukraine war created a widely publicized dispute when Canada licensed Siemens Energy to repair and return a Nordstream 1 turbine to Russia under sanctions exemption (2022 'turbine controversy'). Source: https://www.siemens-energy.com/global/en/offerings/power-generation/gas-turbines.html
Siemens Energy Guadalajara Transformer Plant →
MXGuadalajara, Jalisco · manufacturing
Primary Siemens Energy LPT plant serving US market. Produces 100–500 MVA units. Mexico's USMCA status means these transformers qualify for US domestic content preferences for some programs. Guadalajara is Siemens Energy's cost-competitive alternative to German production. Lead time 18–24 months to US utilities.
What else they do
Business segments
The company's full revenue map, where this supply-chain role fits within their broader business.
Gas Services (Turbines & Compressors)
30%Grid Technologies (Transformers, HVDC)
20%Transformation of Industry
15%Siemens Gamesa (Wind Energy)
35%
Intelligence
What's known
Sourced claims about this company's role in supply chains, chokepoints, concentration, incidents, dual-use connections.
Did you know2023
Siemens Energy provides gas turbines for pipeline compression (enabling fossil fuel transmission) AND majority owns Siemens Gamesa (manufacturing the wind turbines designed to replace fossil fuels). The same parent company is simultaneously maintaining Russian Nordstream pipeline compressors and building the offshore wind turbines the German Energiewende depends on to exit Russian gas. This is the most concentrated example in global supply chains of a single company providing infrastructure for two directly competing energy technologies: fossil gas transmission and wind power. When Siemens Gamesa reported hundreds of millions in losses from gearbox failures in 2022-2023, requiring turbine recalls across European wind farms, it simultaneously reduced European renewable capacity and indirectly increased European dependence on gas -- including the gas flowing through Siemens Energy-maintained Gazprom compressors.
Siemens Energy AG ↗Origin2023
Siemens Energy AG was spun off from Siemens AG in September 2020, separating the energy business from the industrial automation and healthcare divisions. The spinoff came after years of pressure from investors who felt the diverse Siemens conglomerate undervalued its energy assets. Siemens Energy immediately faced two overlapping crises: Siemens Gamesa (the wind turbine subsidiary it majority-owns) began reporting quality failures on its onshore turbine gearboxes in 2022-2023, requiring costly retrofits; and the Russia-Ukraine war stranded a Siemens Energy gas turbine in Canada that Gazprom needed for Nordstream 1 maintenance. The turbine, sent to Montreal for overhaul by Siemens Canada, could not be returned under sanctions. Germany debated whether to grant a sanctions exemption to return the turbine -- a single compressor turbine became the political focus of European energy security debates. The turbine was eventually returned to Germany but the episode revealed how German energy policy had created a single-supplier dependency on Siemens Energy-serviced Gazprom equipment.
Siemens Energy AG ↗