Ansaldo Energia
An Italian power-generation equipment and engineering company serving utility, industrial and power-plant operators in international markets.
Last updated August 27, 2026
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Overview
Ansaldo Energia S.p.A. is an Italian energy-equipment and power-engineering company headquartered in Genoa. Its business is centered on electricity generation rather than the production or retailing of fuels. The company designs and supplies major power-plant equipment, develops and integrates generating facilities, and provides maintenance, repair, modernization and other lifecycle services for installed assets. Its principal product families are gas turbines, steam turbines and generators. Gas turbines are supplied for gas-fired and combined-cycle plants, while steam turbines can be used in thermal, combined-cycle and other steam-driven generation configurations. Generators complete the electromechanical package by converting turbine power into electricity. Ansaldo Energia also works across plant engineering, manufacturing, commissioning and service, giving it a role in both new-build projects and the refurbishment of existing facilities. Its customers include public and private electricity producers, utilities and industrial clients. The company was formally established in Genoa in 1991 as a continuation and expansion of the energy activities associated with the historic Ansaldo industrial group, whose origins date to the nineteenth century. In the following decades, Ansaldo Energia consolidated related businesses and technologies. The 1994 merger with Ansaldo GIE broadened its industrial base, while the 2009 integration of Ansaldo Ricerche brought research capabilities into the company. A fuel-cell business originally spun out of Ansaldo Ricerche was also integrated in 2011. Ownership changed substantially during the 2010s. In 2011, Ansaldo Energia Holding, owned by Leonardo-Finmeccanica and First Reserve Corporation, acquired the company. Leonardo-Finmeccanica subsequently sold most of its interest to the Italian Strategic Fund in 2013. Shanghai Electric acquired a 40% stake in 2014, creating a partnership between the Italian state-investment system and a major Chinese industrial group. Later restructuring and share transfers increased the effective control of the Cassa Depositi e Prestiti system. The cited reference identifies CDP Equity as holding approximately 99.6% of the share capital in 2026. Technology acquisitions helped expand the company's gas-turbine portfolio. Following General Electric's acquisition of Alstom's power businesses, regulatory remedies required the transfer of selected Alstom gas-turbine activities to a European competitor. Ansaldo Energia acquired or received access to relevant GT26 and GT36 technology and related research capabilities, and it also acquired Power Systems Mfg., a gas-turbine aftermarket business. The company subsequently developed production and assembly capacity in Genoa. The GT36 was introduced in Genoa in 2020 as a high-output gas-turbine platform for large combined-cycle plants. Ansaldo Energia operates alongside specialized businesses including Ansaldo Nucleare, which covers nuclear-power engineering and related services, and Ansaldo Green Tech, established in 2021 to pursue technologies associated with the transition toward lower- and zero-carbon generation. The company has also operated or owned businesses focused on gas-turbine and steam-turbine maintenance. Its strategic position is that of a vertically capable power-generation technology provider: it combines equipment, engineering and long-term service, while adapting conventional thermal-generation expertise to changing requirements for efficiency, flexibility, emissions reduction and energy transition.
History
Ansaldo Energia traces its industrial lineage to Ansaldo, an Italian industrial group founded in 1853. The modern company was formally established in Genoa in 1991 as the energy-generation business was organized into a dedicated enterprise. In 1994, it merged with Ansaldo GIE, a company created through earlier acquisitions in the electromechanical and overseas-installation fields. This consolidation strengthened Ansaldo Energia's ability to combine manufacturing with power-plant engineering. The company expanded its service activities in 2006 by acquiring Thomassen Turbine Systems of the Netherlands from Calpine European Finance. Thomassen specialized in maintenance for heavy-duty gas turbines and had international operations, including facilities in the Netherlands and Abu Dhabi. In 2009, Ansaldo Ricerche was merged into Ansaldo Energia, bringing research and development activities into the operating company. Ansaldo Fuel Cells, which had originated as a 2003 spin-off focused on fuel-cell development, was integrated in 2011. A major ownership change occurred on March 9, 2011, when Ansaldo Energia Holding, owned 55% by Leonardo-Finmeccanica and 45% by First Reserve Corporation, acquired all of Ansaldo Energia. The transaction also included a long-term right for the company to use the Ansaldo brand. In December 2013, the Italian Strategic Fund acquired an 85% holding from Leonardo-Finmeccanica and First Reserve. The ownership structure changed again in 2014, when Shanghai Electric agreed to acquire 40% of the company from the Italian Strategic Fund. Subsequent changes in the shareholding and the financial position of the business led to greater control by the Cassa Depositi e Prestiti system; the cited reference identifies CDP Equity as holding approximately 99.6% in 2026. Technology transfer following the GE acquisition of Alstom's power businesses was an important industrial development. European Union and United States regulatory approvals required divestment of selected Alstom gas-turbine assets so that a European competitor could preserve competition. Ansaldo Energia acquired the GT26 and GT36 manufacturing and service activities and related research projects in Baden, Switzerland, and also acquired Power Systems Mfg., an aftermarket-parts business associated with GE7FA turbines. In 2016, the company began construction of a new Genoa facility for assembling next-generation gas turbines, with production previously based in Germany intended to move to Italy. The GT36 was introduced in Genoa in 2020 and became a central part of Ansaldo Energia's high-output gas-turbine offering. In the same year, the company published a 2020–2024 industrial plan that contemplated restructuring and the disposal of certain subsidiaries, including PSM and Ansaldo Thomassen. Ansaldo Green Tech was established in 2021 to address carbon-neutral generation technologies, while Ansaldo Nucleare continued to provide nuclear-sector engineering and related services. Daniela Gentile became chief executive of Ansaldo Nucleare in 2023. At the parent-company level, Fabrizio Fabbri was appointed chief executive in March 2023 and took office in April. Today, the business combines turbine and generator manufacturing with plant engineering, maintenance, upgrades and specialized energy-transition activities.
- 2023
Fabrizio Fabbri becomes chief executive
[1]Fabrizio Fabbri formally assumed the chief executive role on April 1.
- 2021
Ansaldo Green Tech established
[1]A subsidiary focused on carbon-neutral generation technologies was established.
- 2020
GT36 introduced
[1]The GT36 gas turbine was introduced in Genoa for large, high-output combined-cycle applications.
- 2016
Genoa next-generation turbine facility begins construction
[1]Ansaldo Energia started building a Cornigliano facility for assembling next-generation gas turbines using technology transferred from Alstom.
- 2014
Shanghai Electric investment
[1]Shanghai Electric agreed to acquire a 40% stake in Ansaldo Energia.
- 2011
Ansaldo Energia Holding acquisition
[1]A holding company owned by Leonardo-Finmeccanica and First Reserve acquired 100% of Ansaldo Energia.
- 2009
Ansaldo Ricerche integrated
[1]Research activities from Ansaldo Ricerche were absorbed into Ansaldo Energia.
- 2006
Thomassen Turbine Systems acquired
[1]Ansaldo Energia acquired the Dutch gas-turbine maintenance company Thomassen Turbine Systems.
- 1994
Merger with Ansaldo GIE
[1]The company merged with Ansaldo GIE, consolidating related electromechanical and overseas power-installation activities.
- 1991
Ansaldo Energia is formally established
[1]Ansaldo Energia was founded in Genoa as a dedicated continuation and expansion of Ansaldo's energy activities.
Products and positioning
A large-scale power-generation technology, engineering and lifecycle-services provider for utilities, independent power producers and industrial customers.
Power-generation equipment
Gas turbines
Ansaldo Energia supplies heavy-duty gas turbines for gas-fired and combined-cycle power plants. The cited reference describes a portfolio ranging from approximately 70 MW to 538 MW and identifies designs derived from Siemens and former Alstom technology. The product business is supported by plant integration, commissioning, aftermarket parts, maintenance, repairs, upgrades and long-term service. Gas turbines are a central part of the company's equipment and engineering offering for utility and industrial customers.
Heavy-duty gas turbine
GT26
The GT26 is a heavy-duty gas-turbine platform used principally in large combined-cycle generation. Ansaldo Energia acquired the related manufacturing and service activities as part of the regulatory divestitures connected with General Electric's acquisition of Alstom's power businesses. The platform is supported by maintenance, service and modernization capabilities and can be deployed in new plants or in selected upgrade programs.
High-output gas turbine · 2020
GT36
Introduced in Genoa in 2020, the GT36 is a high-output gas-turbine platform for large combined-cycle power plants. It represents Ansaldo Energia's effort to compete in the high-capacity segment using technology associated with the former Alstom gas-turbine business. The platform is intended for projects requiring substantial output, efficiency and operational flexibility, with the exact plant configuration determined by customer and site requirements.
Power-generation equipment
Steam turbines
Ansaldo Energia manufactures steam turbines for thermal, combined-cycle and other steam-driven generation applications. The cited reference describes machines in an approximate 80 MW to 1,200 MW range. Steam turbines may be supplied as part of a complete plant package or used in replacement, refurbishment and modernization work. Their service scope can include maintenance, rotor and casing work, reblading and other lifecycle interventions.
Electrical generation equipment
Generators
The company's generators convert mechanical energy from gas or steam turbines into electricity. The portfolio includes air-, hydrogen- and water-cooled designs intended for large generating facilities. The cited reference states that the generator range is designed for applications exceeding 50,000 MVA of generating capacity. Generator activities also connect with repair, rewinding, component production and modernization services.
Engineering and services
Power-plant engineering and lifecycle services
Ansaldo Energia provides engineering, procurement-related integration, manufacturing, construction support, commissioning, maintenance, repair and modernization for power-generation installations. Services cover new thermoelectric projects as well as upgrades and life-extension work on operating plants. This combination allows the company to sell equipment together with technical services intended to improve availability, efficiency, flexibility and operating life.
Nuclear-energy engineering
Ansaldo Nucleare services
Ansaldo Nucleare is the group's nuclear-energy business. Its activities include promotion, sales, project management, engineering, contracting, fabrication and site implementation for nuclear-power equipment and related services. It extends the Ansaldo Energia group beyond conventional thermal generation while retaining an engineering and major-project orientation.
Energy-transition technologies · 2021
Ansaldo Green Tech solutions
Ansaldo Green Tech was established in 2021 to focus on technologies supporting the transition toward carbon-neutral generation. The cited material does not provide a sufficiently detailed product list, so this entry describes the subsidiary's strategic scope rather than assigning specific technologies or commercial offerings.
Brand decisions
2021
Creation of Ansaldo Green TechStrategyBackground
The power industry was shifting toward lower-carbon and carbon-neutral generation technologies.
Action taken
Ansaldo Energia established Ansaldo Green Tech to focus on energy-transition technologies.
Aftermath
The new subsidiary broadened the group's strategic scope beyond conventional turbine-centered generation.
2020
2020–2024 industrial planStrategyBackground
Ansaldo Energia reviewed its portfolio and operating structure amid changes in the power-generation market and its shareholder and financial context.
Action taken
The company announced an industrial plan for 2020–2024 that included the potential disposal of several subsidiaries.
Aftermath
The planned restructuring was followed by the sale of businesses including PSM and Ansaldo Thomassen, according to the cited reference.
2020
GT36 introductionProduct launchBackground
Ansaldo Energia sought to strengthen its position in the high-output gas-turbine market using technology associated with the former Alstom business.
Action taken
The company introduced the GT36 gas turbine in Genoa for large combined-cycle applications.
Aftermath
The GT36 became a flagship platform in Ansaldo Energia's high-capacity gas-turbine portfolio.
2016
Build-out of Genoa gas-turbine productionStrategyBackground
Regulatory remedies attached to the GE-Alstom transaction required the transfer of selected Alstom gas-turbine assets to a European competitor.
Action taken
Ansaldo Energia began construction of a Cornigliano, Genoa facility for assembling next-generation gas turbines and planned to relocate production previously based in Germany.
Aftermath
The move strengthened the company's Italian manufacturing base and supported its role as the recipient of strategic Alstom gas-turbine technology.
2014
Shanghai Electric takes a strategic minority stakeM&ABackground
Ansaldo Energia sought a strategic industrial shareholder while retaining Italian state-investment participation.
Action taken
Shanghai Electric agreed to acquire 40% of Ansaldo Energia from the Italian Strategic Fund.
Aftermath
The company operated under a partnership between the Italian Strategic Fund and Shanghai Electric, with the Italian side retaining approximately 60% at that stage.
Transaction value. €400 million (May 2014)
2013
Italian Strategic Fund acquires an 85% stakeM&ABackground
Leonardo-Finmeccanica and First Reserve decided to sell most of their interest in the power-generation company.
Action taken
The Italian Strategic Fund acquired 85% of Ansaldo Energia.
Aftermath
The transaction increased Italian strategic-investor control before Shanghai Electric entered the shareholder structure.
Transaction value. €777 million (December 2013)
2011
Ansaldo Energia Holding acquires the companyM&ABackground
The energy business was reorganized under a holding company owned by Leonardo-Finmeccanica and First Reserve Corporation.
Action taken
Ansaldo Energia Holding acquired 100% of Ansaldo Energia and arranged a long-term right to use the Ansaldo brand.
Aftermath
The transaction placed Ansaldo Energia under a new shareholder structure and preceded further ownership changes involving the Italian Strategic Fund and Shanghai Electric.
Recent events
- 2023
Fabrizio Fabbri appointed chief executive[1]
Leadership change
Fabrizio Fabbri was appointed chief executive on March 5 and formally assumed the role on April 1.
- 2021
Ansaldo Green Tech is established[1]
Other
The new subsidiary was created to focus on technologies supporting the transition toward carbon-neutral energy generation.
- 2020
GT36 gas turbine introduced in Genoa[1]
Product launch · Product generation
Ansaldo Energia presented the GT36, a high-output gas turbine designed for large combined-cycle power-generation applications.
- 2020
Ansaldo Energia announces its 2020–2024 industrial plan[1]
M&A
The company's industrial plan included portfolio and subsidiary restructuring, including the later sale of several businesses.
- 2019
Leadership transition from Giuseppe Zampini to Giuseppe Marino[1]
Leadership change
Giuseppe Zampini moved from chief executive to chairman, while Giuseppe Marino became chief executive.
- 2016
Ansaldo Energia expands Genoa gas-turbine production[1]
Product generation
The company began construction of a Genoa production facility for next-generation gas turbines associated with technology transferred from Alstom after the GE-Alstom transaction.
- 2014
Shanghai Electric acquires a 40% stake[1]
M&A
Shanghai Electric and the Italian Strategic Fund agreed on a transaction that gave Shanghai Electric a 40% interest in Ansaldo Energia.
- 2013
Italian Strategic Fund takes a controlling stake[1]
M&A
The Italian Strategic Fund acquired 85% of Ansaldo Energia from Leonardo-Finmeccanica and First Reserve.
- 2011
Ansaldo Energia Holding acquires Ansaldo Energia[1]
M&A
Ansaldo Energia Holding, owned by Leonardo-Finmeccanica and First Reserve Corporation, acquired the company in a major ownership transaction.
- 2006
Ansaldo Energia acquires Thomassen Turbine Systems[1]
M&A
The company acquired Dutch gas-turbine maintenance specialist Thomassen Turbine Systems, expanding its international service capabilities.
Sources1 sources
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