AES Corporation

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The AES Corporation
FormerlyApplied Energy Services, Inc. (1981–2000)
TypePublic company
FoundedJanuary 28, 1981; 42 years ago (1981-01-28)
HeadquartersArlington, Virginia, U.S.
Area served
Key people
Jay Morse (Chairman)
Andres Gluski (President & CEO)
RevenueDecrease US$10.19 billion (2019)[1]
Decrease US$303 million (2019)
Total assetsIncrease US$33.65 billion (2019)
Total equityDecrease US$3.00 billion (2019)
Number of employees
8,000 (2019)

The AES Corporation is an American utility and power generation company. It owns and operates power plants, which it uses to generate and sell electricity to end users and intermediaries like utilities and industrial facilities. AES is headquartered in Arlington, Virginia, and is one of the world's leading power companies, generating and distributing electric power in 15 countries[2] and employing 10,500 people worldwide. AES Corporation is a global Fortune 500 power company.[3] AES Ranks in the Top Ten of Fast Company's 2022 Best Workplaces for Innovators.[4]


The company was founded on January 28, 1981, as Applied Energy Services[5] by Roger Sant and Dennis Bakke, two appointees of the Federal Energy Administration under president Richard Nixon. The company was initially a consulting firm; it became AES Corporation, which went public in 1991. Sant was chairman, CEO, and president and Bakke was executive vice president until assuming the position of president in 1987. Bakke would later become the company's CEO in 1994, serving for 8 years until his resignation in 2002, in the midst of a liquidity crisis that followed the collapse of the energy giant Enron.[6][7] Sant remained as executive chairman until 2003 and as a member of the board until 2006. Paul Hanrahan was appointed President and CEO and served for 10 years, overseeing the stabilization of the company. Until the early 2000’s, the company followed self-management, delegating much responsibility to ordinary employees.[8] In 2012, Hanrahan resigned, his position as President and CEO of the company succeeded by Andres Gluski. As CEO, Gluski has implemented a strategy of reducing the number of countries in which AES does business, from 28 to 16, for the purpose of consolidating operations and reducing costs. Additionally, he also began a program of reducing the company's total carbon emission intensity.

Bakke and Sant oversaw much of AES's initial global expansion, building power plants in 29 countries and expanding its staff from 1,400 to 32,000 employees, and also instilled a system of decentralized management that emphasized social responsibility above profit. In recent years, AES has also signaled a commitment to providing its consumers and clients with renewable forms of energy, and their operations across the world have increasingly focused on the construction and provision of solar and wind-based energy storage systems.

AES acquired the assets of Indianapolis Power & Light, Ipalco, in 2000.[9] In February, 2021, Indianapolis Power & Light rebranded as AES Indiana.[10]

AES acquired the Chilean-based subsidiary Gener in 2000. AES acquired DPL Inc., then known as Dayton Power & Light, in 2011.[11] The company was rebranded as AES Ohio in February, 2021.[12]

In fiscal 2015 AES's total revenue was $15 billion.[13]

In 2018, AES acquired the subsidiary sPower.

In December, 2021, AES acquired Community Energy Solar (Community Energy) to help deliver 4 GW of renewables in the US.[14]

Major projects[edit]


Launched during January 2018, Fluence is a joint venture between AES Energy Storage and Siemens that is focused on the development of, and expansion of energy storage technologies and services. Chaired by former AES vice-president for energy storage platforms Stephen Coughlin, and headquartered in Washington D.C., Fluence aims to implement AES's extensive research into the potential of lithium-ion powered energy sources by relying upon Siemens' expansive global presence in the industrial sector; for the purpose of addressing the rapidly rising demand for clean energy technologies.[15] Fluence has been deployed in 16 countries, with major projects including the following:[16]

  1. The creation of a new 40 megawatt storage facility on behalf of San Diego Gas & Electric's new 40 MW storage facility.[17]
  2. Three solar powered projects throughout Arizona and two 10 MW projects in the Dominican Republic.[18]
  3. The installation of six storage projects across Germany that will provide grid stabilization.[19]
  4. The construction of a hybrid microgrid on the Mediterranean Island of Ventotene. Said microgrid will be developed as per an agreement between Fluence and the Italian energy utility Enel, and will combine diesel generators with renewables in order to aid in the efforts to reduce carbon costs and emissions.[19] The key technology platforms developed by Fluence include the following.

Key Fluence technologies[edit]

Fluence is expected to employ three different types of grid technology. WP:Crystal

i):SIESTORAGE: An electrical energy storage system fueled predominantly by wind and solar energy. Siestorage relies upon the closed-loop controls and pulse modulation built into its semiconductors, in order to provide consumers with increased dependability.[20]

ii):Advancion: A storage system that is made up of several small, modular nodes and powered by Lithium ion batteries, which enables the Advancion energy store system to provide consumers with a heightened degree of consistency in performance.[21]

iii): Sunflux Energy: Announced in January 2018, Sunflex was developed for the purpose of expanding upon the possibilities offered by photovoltaic solar energy. This technology is built to capture energy during peak solar hours in order to expand energy delivery.[22][23]

Projected ventures using Fluence technologies[edit]

Presently, the biggest project in Fluence's portfolio is a 100–400 Mwh "power center energy storage project" for Southern California Edison.[24] This system will be housed within AES's power center in Los Alamitos, California.

During January 2018, the subsidiary AES India, working in partnership with Mitsubishi, commenced construction of a 10 MW energy storage solution that will be located in Rohini. This storage solution, which shall operate off Fluence's Advancion technology, is projected to be the first utility-scale system to be in India.[25]


Headquartered in Salt Lake City and acquired from Fir Tree Partners Inc in a purchase during 2017, as part of a joint acquisition with Alberta Investment Management Corporation. Spower is one of the largest operators and developers of utility-scale solar in the United States; operating across 11 states, and with particular focus on the states of California and North Carolina.[26] Spower's current operating portfolio includes 1.3 GW worth of solar and wind based properties, in addition to over 10,000 MW worth of projects that are in the developmental stage.[27]

Investment in drone technologies[edit]

As part of an effort by AES to protect its employees from industry hazards and to improve workplace safety, the company announced a partnership with a drone provider, Measure, to inspect their various energy infrastructures sites across 17 countries.[28]

Major properties and subsidiaries[edit]

Properties and subsidiaries in North America[edit]

Properties in South America[edit]

Based in Argentina[edit]

  • TermoAndes: Located in the province of Salta, and acquired by AES in 2000. This hybrid plants utilizes both gasoline and diesel fuels and has a MW capacity of 643.
  • Alicura: Acquired by AES in the year 2000. This hydro powered plant is one of Andes' most important alternative energy assets, boasting 1,000 megawatts of generation.
  • Ullum: Acquired in 1996, this plant generates 45 megawatts of electricity via hydropower.
  • Guillermo Brown: Located in the province of Buenos Aires, and acquired by AES in 2016. This gas turbine utilizes both natural gas and diesel fuels and has a megawatt capacity of 576.
  • Los Caracoles: Owned by AES Argentina, and located in [Buenos Aires]. This hydroelectric plant produces 12 MW. Although AES owns the property, the equity is publicly owned, and operations are carried out through various managerial and Observation and Measurement agreements.[33]
  • Paraná-GT: Purchased by AES Argentina in 2001, and located in San Nicolás. This plant uses both gasoline and diesel as fuel sources, and has a total capacity of 845 megawatts.
  • Carba Corral: Based in the province of [Salta], and owned by AES Argentina, who purchased the property in 1995. This plant has an installed megawatt capacity of 102, and runs on hydro power.
  • Sarmiento Power Plant: Owned by AES Andes, and located in San Juan Province, Argentina. This plant was acquired by AES in 1996, and runs off both gas and diesel fuel. It has an installed capacity of 33 MW, and runs off 3 Electrical gas turbines, all of which measure 11 MW.[34]

Based in Brazil[edit]

Based in Chile[edit]

Properties and subsidiaries in Europe[edit]

Based in United Kingdom[edit]

  • Ballyumford Power Station: Located on the northwestern end of Islandmagee in County Antrim. This property, purchased by AES in 2010, is the largest power station on the Irish mainland, boasting a generating capacity of 1017 megawatts.[citation needed]
  • Kilroot Power Station: Acquired by AES in 1992 deal that included Belfast Power Station West. The company was named NIGEN and distinguished by the fact that it was the first purchase the company made outside of the United States, this property is located on the north shore of Belfast Lough in, and was acquired by AES in 1992. This station has an installed generating capacity of 560 megawatts, and operates using generators that run off both oil and gas, as well as via turbines that provide it with an additional 142 MW. Belfast Power Station West was a 240MW coal fired plant comprising 13 chain grate stoker boilers and 5 Parsons turbo generators 2X30MW and 3x60MW[35]
  • Array: An energy storage system located at the Kilroot Power station, and operating off Fluence's Advancion model. This system is the largest advanced energy storage system in the United Kingdom, providing 10 megawatts of interconnected storage energy.[36]

Based in Bulgaria[edit]

  • Maritiza Iztok: The largest energy complex in Southeast Europe, the Maritiza Iztok Complex is a 690 coal plant located in Galabovo. It was acquired by AES in 2011.
  • St. Nikola: St. Nikola is a 156 MW wind generator located near the town of Kavarna. It was built in 2009 and is considered the largest wind farm in the country. As part of the high efficiency standards maintained throughout the development and construction of this generator, AES Geo Energy was awarded both the 2008 "Sustainable Energy Deal of the Year" Prize from EMEA Finance Magazine, as well as the "Investor of 2009" in the Energy Sector by the Bulgarian Investment Agency for Production of Electric Power from RES.).

Based in the Netherlands[edit]

  • Eltsa: Located in the Dutch province of Zeeland, near Terneuzen. AES acquired 50% of the interests in this facility in 1998, as part of a transaction that divided ownership between it, DELTA, and Essent.[37] This facility is powered by a trio of natural gas turbines, and can produce up to 630 MW of power.
  • Netherlands ES: Located in Amsterdam, this energy storage system was built using AES's Advancion technology. This system, which produces a total of 10 MW, is designed to provide a low-battery based alternative to traditional power plants and hydroelectric storages.[38]

Properties and subsidiaries in Asia[edit]

Properties and subsidiaries in the Middle East[edit]

Based in Jordan[edit]
  • 'The Amman East Power Plant' MW a 380 MW combined cycle gas-fired power plant located Al Manakher. The plant was commissioned in 2009, and is a shared subsidiary of AES and Mitsui & Co. In 2011 Qatar Electricity & Water Corporation announced it will buy a stake in the power plant.[citation needed]

Properties and subsidiaries in Central Asia[edit]

Based in Kazakhstan[edit]
  • Ust-Kamenorgorsk: Active since 1947 and purchased megawatt AES in 1997, CHP is a 1,372 MW coal power plant located in the East Kazakhstan Region.[citation needed]
  • The Shulbinsk: Acquired by AES in 1997, Shulbinsk is a 702 MW plant that runs off Hydroelectricity. It is located in Semey.[citation needed]
  • Ust- Kamenogorsk HPP: Located on the Irtysch River near Ust-Kamengorsk in the East Kazakhstan Region, and purchased by AES in 1997. This is a hydroelectric plant that operates using 4 individual turbines, which give it a nominal output of 83 megawatts, and a total generation capacity of 340 megawatts.[citation needed]
  • Sogrinsk CHP: Acquired by AES in 1997 and operated by the power generation company CHP LLP, this coal based plant has a total capacity of 345 MW. It is located in the East Kazakhstan Region.[citation needed]

Properties and subsidiaries in Southeast Asia[edit]

Based in the Philippines[edit]
  • Masinloc Power Plant: Located in the Zambales Province in Luzon, and purchased for a sum of $930 million from Masinloc Power Partners Co. Ltd. in 2009. This project, a 630 MW coal power plant, derives its resources from its proximity to the Pacific Rim, and has a stable infrastructure amendable to further megawatt additions.[39]
  • Masinloc ES: Located in the Zambales Province in Luzon, and launched by AES subsidiary Masin-AES Pte. Ltd during 2016. This storage generator provides 10 MW to the Luzon grid, and is the first battery based energy system in the country.[40]
Based in Vietnam[edit]
  • Mong Duong 2: Located in Cam Pha, this 1,240 MW coal fired plant became commercially operational in 2015.[41] This plant, constructed under a Build-Operate Transfer (BOT) agreement between AES and state owned entities Electricity of Vietnam (EVN) and Vinacomin, is the largest power project in the nation's private sector.

Properties and subsidiaries in India[edit]

  • OPGC Plant: Acquired by AES in 1998, this coal power plant has a total capacity of 420 MW. It is located in Odisha.
  • OPGC II: Currently under construction, this coal powered plant is expected to boast 1,300 MW capacity.


  1. ^ "The AES Corporation revenue".
  2. ^ "Our history | AES".
  3. ^ "AES". Fortune. Retrieved November 24, 2018.
  4. ^ "AES Named in the Top Ten on Fast Company's 2022 Ranking of Best Workplaces for Innovators". Retrieved August 10, 2022.
  5. ^ "AES - Frequently Asked Questions". Archived from the original on October 22, 2006. Retrieved October 7, 2012.
  6. ^ Gross, Daniel (March 11, 2003). "When Bad Things Happen to Good Companies". Slate. ISSN 1091-2339.
  7. ^ "Ex-AES CEO now puts his energy in education". NH Business Review. November 25, 2005.
  8. ^ Laloux, Frederic. Reinventing Organizations.
  9. ^ "AES acquiring Ipalco". CNNfn. July 17, 2000. Retrieved November 4, 2017.
  10. ^ "IPL changed its name to AES. Here's how it affects its electric customers". Indianapolis Star. February 24, 2021. Retrieved June 18, 2021.
  11. ^ Nolan, John (November 29, 2011). "AES completes DPL merger". Dayton Daily News. Retrieved November 4, 2017.
  12. ^ "DP&L is renamed AES Ohio, ending longstanding name". Dayton Daily News. February 24, 2021. Retrieved June 18, 2021.
  13. ^ "AES Corporation, Form 10-K, Annual Report" (PDF). Retrieved April 27, 2016.
  14. ^ "AES Corporation Acquires Community Energy to Boost its Solar & Storage Project Pipeline". Retrieved December 23, 2021.
  15. ^ Spector, Julian. "AES and Siemens Partner to Create New Energy Storage Powerhouse". GreenTech Media. January 11, 2018. Accessed June 14, 2018.
  16. ^ "Energy Storage Company Fluence Launches with Unparalleled Suite of Capabilities for Customers in Over 160 Countries". January 11. 2018. Accessed June 14, 2018.
  17. ^ Colthorpe, Andy. "AES and Siemens’ energy storage JV Fluence launches solar-plus-storage platform, financing". Energy Storage News. January 11, 2018. Accessed June 14, 2018.
  18. ^ "Energy Storage Company Fluence Launches with Unparalleled Suite of Capabilities for Customers in Over 160 Countries". January 11. 2018. Accessed June 14, 2018.
  19. ^ a b "Advancion Energy Storage | Fluence - A Siemens and AES Company". Archived from the original on June 15, 2018. Retrieved June 14, 2018.
  20. ^ [1] Archived June 15, 2018, at the Wayback Machine Siestorage Platform. Accessed June 14, 2018.
  21. ^ [2] Archived June 15, 2018, at the Wayback Machine "The Advancion Energy Storage Platform". Accessed June 14, 2018
  22. ^ [3] Archived June 15, 2018, at the Wayback Machine "The SunFlex Energy Storage Platform". Accessed June 14, 2018
  23. ^ "Fluence Sunstack" (PDF). 2022. Retrieved October 25, 2022. TS-009-06-EN
  24. ^ Lambert, Fred. [4]/. "AES and Siemens launch new energy storage startup to compete with Tesla Energy, will supply new world’s biggest battery project". January 11, 2018. Accessed June 14, 2018.
  25. ^ [5] "AES and Mitsubishi Corporation Start Construction on India’s First Grid-Scale Energy Storage System for Tata Power-DDL". Business Wire. January 23, 2018. Accessed June 15, 2018.
  26. ^ Kenning, Tom. "sPower sold to AES and AIMCo for US$1.6 billion". August 1, 2017. Accessed June 15, 2018.
  27. ^ Swagath, BV. "SolAero wins contract to supply solar panels to SSL". Accessed June 15, 2018.
  28. ^ "Measure Partners With AES To Deploy Drones At Record Scale For The Energy Industry". PR Newswire. February 7, 2017. Accessed June 15, 2018.
  29. ^ Wagman, David (November 28, 2017). "Battery Storage Will Offer Grid Support as Puerto Rico Recovers". IEEE Spectrum: Technology, Engineering, and Science News. Retrieved December 7, 2017.
  30. ^ "AES Energy Storage". AES Energy Storage. Retrieved October 7, 2012.
  31. ^ "SDG&E and AES complete world's largest lithium ion battery facility". Energy Storage News. February 28, 2017. Retrieved March 6, 2017.
  32. ^ "AES Puerto Rico". Retrieved November 6, 2020.
  33. ^ "The AES Corporation Factsheet As Of August 8, 2017. p. 13. Accessed June 19, 2018.
  34. ^ [6] "Sarmiento". Accessed June 19, 2018.
  35. ^ "Kilroot Power Station". Accessed June 19, 2018.
  36. ^ "AES Unveils AES Kilroot Advancion Energy Storage Array". Fluence. Accessed June 19, 2018.
  37. ^ "Eltsa Cogeneration Power Plant Hoek AES". Accessed June 19, 2018.
  38. ^ "AES Netherlands Advancion® Energy Storage Array Now Serving European Grid" Fluence. January 16, 2016. Accessed June 19, 2018.
  39. ^ "Masinloc Coal- Fired Thermal Power Plant. Accessed June 19, 2018.
  40. ^ "AES to Bring First Battery-Based Energy Storage to the Philippines". November 4, 2015. Accessed June 19, 2018.
  41. ^ "AES Achieves Commercial Operation of 1,240 MW Mong Duong 2 Plant in Vietnam". May 11, 2015. Archived from the original on June 20, 2018. Retrieved June 19, 2018.

External links[edit]

  • Official website
  • Business data for The AES Corporation: