AES and AIMco to acquire sPower for US$1.58 billion

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Once complete AES’ portfolio of renewable energy projects in operation and under construction will increase from 8,278MW to 9,552MW. Credit: sPower

Major global power firm AES Corporation and Canada-based investment manager Alberta Investment Management Corporation (AIMCo) have agreed to acquire utility-scale solar developer sPower from Fir Tree Partners and its minority owners.

sPower, headquartered in Salt Lake City, develops and owns utility-scale solar projects across the US, with a portfolio of 1,274MW of solar and wind projects in operation or under construction. The company's utility-scale projects are mostly based in California and North Carolina, while its distributed generation assets are mostly clustered in the North East states or California. The firm also has a US development pipeline of more than 10GW.

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The transaction includes US$853 million in cash and the assumption of US$724 million in non-recourse debt. AES and AIMCo will each independently own just under 50% equity in sPower.

The transaction is expected to close by the third quarter of 2017. Once complete AES’ portfolio of renewable energy projects in operation and under construction will increase from 8,278MW to 9,552MW, including hydro, wind, solar and energy storage capacities. Notably, AES subsidiary AES Energy Storage last year agreed to install the largest battery-based energy storage project in the US for utility San Diego Gas and Electric (SDG&E).

Andrés Gluski, AES president and chief executive, said: “We are very pleased to acquire sPower, the largest independent solar developer in the United States. sPower not only brings 1.3GW of installed capacity with an average remaining contract life of more than 20 years, but a first class management and development team with a pipeline of more than 10GW of projects.”

13 October 2026
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 13-14 October 2026 is our fourth PV CellTech conference dedicated to solar manufacturing in the USA. From polysilicon, wafers, ingots, cells and modules, to critical component suppliers including glass and frames, the event connects every stage of the value chain under one roof. PV CellTech USA also brings together investors, innovators, manufacturers and industry stakeholders to collaborate and strengthen domestic solar manufacturing across the United States.

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