Siemens Energy Sector

The Siemens Energy Sector was one of the four principal operating sectors of Siemens AG during the company’s sector-based organizational structure. Established on January 1, 2009, it brought together Siemens activities associated with the generation, transmission, conversion, management, and servicing of electrical energy, as well as selected oil, gas, industrial, and environmental technologies. It was not an independent corporation or separately listed company; rather, it was an internal business grouping within Siemens AG. The sector served utilities, industrial companies, infrastructure operators, oil and gas companies, governments, and other large energy users. Its portfolio extended across conventional and renewable power generation, high-voltage transmission, substations, grid-control technologies, energy management, power-plant service, and equipment used in oil and gas processing and transport. Major offerings included gas and steam turbine generators for large-scale and industrial applications, turnkey fossil-fuel power plants, wind turbines and wind-farm solutions, transformers, gas-insulated switchgear, high-voltage circuit breakers, flexible alternating-current transmission systems, high-voltage direct-current systems, and process-control platforms. The sector was built on Siemens’s long-standing electrical engineering and industrial businesses and was expanded through acquisitions, minority investments, and joint ventures. These included businesses connected with heat-recovery steam generators, subsea power equipment, high-voltage switchgear, environmental-control systems, wind power, industrial steam turbines, and marine-current generation. Partnerships with companies such as Shanghai Electric, A2SEA, Semprius, Voith Hydro, and Russian industrial firms extended its reach into wind, photovoltaic, offshore-wind, hydroelectric, compressor, and power-generation markets. In fiscal year 2013, the sector reported approximately €26.6 billion in revenue and employed about 83,500 people, according to the cited reference material. Its internal divisions included Renewable Energy, Power Generation, Power Transmission, and Energy Service. The division structure reflected the sector’s broad role in the energy value chain, from primary-energy conversion and electricity production to grid delivery, maintenance, modernization, and technical consulting. Siemens eliminated the sector-level organization effective October 1, 2014, as part of a broader corporate reorganization. The Siemens energy businesses continued in other organizational forms after that date. The former sector should not be conflated with Siemens Energy AG, the separately organized energy company that Siemens later created and spun off in 2020. Siemens Energy Sector is therefore best understood as a historical Siemens AG business division rather than a current standalone brand or legal entity.

The Siemens Energy Sector was created on January 1, 2009, when Siemens AG operated through a sector-based management structure. It was one of four major Siemens sectors and consolidated a wide group of businesses involved in the production, transmission, control, servicing, and industrial use of energy. The sector’s scope included conventional power generation, renewable energy, electricity-grid infrastructure, energy services, and selected oil and gas technologies. Its Power Generation activities supplied gas and steam turbine generators, turnkey fossil-fueled power plants, gasifiers, emissions-control systems, plant automation, and modernization services. The Renewable Energy division covered wind turbines, wind farms, and other emerging technologies, including marine-current generation and concentrated photovoltaic systems. Power Transmission supplied substations, transformers, gas-insulated switchgear, high-voltage circuit breakers, voltage regulators, surge arresters, FACTS equipment, and HVDC systems. Energy Service supported customers through plant maintenance, upgrades, extended service agreements, training, consulting, and field-based technical work. The sector’s capabilities reflected both Siemens’s historical electrical-engineering operations and a series of acquisitions and partnerships. Siemens acquired or invested in businesses involved in industrial steam turbines, wind energy, heat-recovery steam generators, environmental-control systems, high-voltage switchgear, subsea power, and marine-current turbines. It also formed or supported joint ventures with partners in China, Russia, Europe, and the United States. These arrangements helped the sector participate in equipment manufacturing, offshore-wind services, hydroelectric systems, gas-pipeline compressors, and power-generation projects. The sector operated internationally and addressed large infrastructure and industrial projects rather than primarily selling consumer products. Its customers included electric utilities, industrial operators, governments, grid companies, oil and gas firms, and operators of large power plants. The business therefore combined equipment sales with engineering, construction, commissioning, software, maintenance, modernization, and long-term service contracts. For fiscal year 2013, the cited reference material reported approximately €26.6 billion in revenue and approximately 83,500 employees. These figures describe the Siemens Energy Sector as it existed within Siemens AG and should not be treated as financial results of Siemens Energy AG, which was created later. Siemens ended the sector-level structure on October 1, 2014. The change removed the Energy Sector as a formal organizational unit, although many of its businesses continued within successor Siemens organizations. In 2020, Siemens’s energy activities were associated with the creation and stock-market listing of Siemens Energy AG. That later company is historically related to the former sector but is a separate corporate development and should not be used as a substitute for the historical Siemens Energy Sector.

1. 2020Later Siemens energy spin-off

   Siemens’s later energy-business restructuring results in Siemens Energy AG becoming an independent, Frankfurt-listed company. This is a successor development rather than a continuation of the former sector as a legal entity.

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2. 2014Sector-level structure is discontinued

   Siemens eliminates the sector-level organization effective October 1, ending the Siemens Energy Sector as a formal organizational unit.

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3. 2013Reported scale of the Energy Sector

   The sector reports approximately €26.6 billion in revenue and employs about 83,500 people in the cited fiscal-year reference.

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4. 2012Marine-current technology acquisition

   Siemens acquires Marine Current Turbines to develop tidal and marine-current power-generation technology.

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5. 2011Renewable and energy-equipment portfolio broadens

   The sector expands through investments and partnerships involving wind turbines, offshore-wind services, concentrated photovoltaic modules, heat-recovery steam generators, and subsea power equipment.

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6. 2010Expansion of transmission and gas infrastructure activities

   Siemens adds or develops activities involving Russian high-voltage switchgear, gas-pipeline compressor manufacturing, and power-generation equipment through acquisitions and joint ventures.

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7. 2009Energy Sector is established

   Siemens creates the Energy Sector as one of its four principal sectors, effective January 1, bringing together power-generation, transmission, renewable-energy, and energy-service businesses.

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Integrated energy-technology supplier serving the electricity-generation, transmission, industrial, renewable-energy, and oil-and-gas markets.

• Gas and steam turbine generatorsPower generation equipment

  The sector supplied gas- and steam-turbine generator systems for utility-scale and industrial applications. The cited portfolio included equipment for 50-Hz and 60-Hz electrical systems, with combined capacities reaching up to approximately 1,100 MW. These systems were sold both as individual generation assets and as components of larger engineered power projects.

• Turnkey fossil-fueled power plantsPower plants

  Siemens Energy Sector delivered turnkey power-generation projects, covering engineering, equipment integration, construction support, commissioning, and related control systems. Its portfolio included gas- and coal-fired facilities and associated plant technologies. The business also offered modernization and upgrade programs for existing plants.

• Wind turbines and wind farmsRenewable energy

  The Renewable Energy division supplied wind-power equipment and participated in wind-farm development and services. Siemens’s portfolio also included offshore-wind capabilities supported by partnerships and investments in specialized installation and service providers.

• High-voltage transmission systemsPower transmission

  Transmission offerings included turnkey substations, gas-insulated switchgear, high-voltage circuit breakers, transformers, voltage regulators, surge arresters, FACTS systems, and HVDC solutions. These technologies supported the transfer, protection, stabilization, and management of electricity across utility and industrial networks.

• Energy services and modernizationEnergy services

  The Energy Service division provided factory- and field-based maintenance for gas, steam, nuclear, and wind turbines and other plant equipment. Services included plant modernization, upgrades, extended service agreements, training, consulting, and operational support.

• Energy-management and process-control systemsEnergy software and controls

  The sector supplied process-control platforms, power-management systems, and decision-support tools for power-plant and network operators. These systems helped customers monitor assets, coordinate generation and transmission, and improve operational decision-making.

• Oil and gas turbocompressorsOil and gas equipment

  Turbocompressors served petrochemical, refining, oil and gas, and chemical applications. The sector’s oil and gas activities also included technologies connected with the transport and processing of natural gas and other industrial feedstocks.

• 2020Separate Siemens energy business is listedM&A

  Siemens later reorganized its energy activities after the former sector structure had already been discontinued.

  What changed. The energy business became Siemens Energy AG and was listed on the Frankfurt Stock Exchange.

  Aftermath. Siemens Energy AG became a separate company related to, but distinct from, the former Siemens Energy Sector.

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• 2014Discontinue the sector-level organizationStrategy

  Siemens reorganized its corporate management structure and removed the sector level used to group major businesses.

  What changed. The Energy Sector and the other sector-level units were eliminated effective October 1, 2014, with businesses continuing through successor organizational arrangements.

  Aftermath. The historical Siemens Energy Sector ceased to exist as a formal Siemens organizational unit. Later energy-business restructuring ultimately led to Siemens Energy AG in 2020.

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• 2009Create a dedicated Energy SectorStrategy

  Siemens sought to manage its energy-related activities as a coherent global business spanning generation, transmission, renewable energy, and services.

  What changed. Effective January 1, Siemens grouped the relevant businesses into the Energy Sector, one of four major sectors in its corporate structure.

  Aftermath. The structure provided a single organizational framework for a broad energy portfolio until Siemens abolished the sector-level model in 2014.

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• 2014Siemens ends sector-level organizational structure

  Siemens discontinued its sector-level organization effective October 1, 2014, ending the Energy Sector as an organizational unit.

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• 2014Siemens eliminates the sector-level organization

  From October 1, 2014, Siemens removed the sector level from its organizational structure, ending the Siemens Energy Sector as a distinct sector.

  Leadership change
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• 2013Energy Sector reports approximately €26.6 billion in fiscal 2013 revenue

  The sector's referenced fiscal-year figures reported approximately €26.6 billion in revenue and around 83,500 employees.

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• 2011Siemens expands energy portfolio through acquisitions and partnerships

  The sector expanded activities in heat-recovery systems, subsea power equipment, wind power, photovoltaic technology, and related energy infrastructure through acquisitions and strategic partnerships.

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• 2009Siemens establishes Energy Sector

  Siemens organized its energy-related activities into the Energy Sector, including power generation, transmission, renewable energy, and energy services.

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• 2009Siemens establishes the Energy Sector

  Siemens began operating the Energy Sector on January 1, 2009, consolidating energy-related generation, transmission, renewable, and service activities within the conglomerate's sector structure.

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1. Siemens Energy Sector