Global Infrastructure Partners and EQT's $33.4 billion take-private of AES is testing investor tolerance for coal exposure in infrastructure portfolios. The deal, backed by CalPERS and QIA, values AES at $10.7 billion in equity and includes a power portfolio spanning renewables, natural gas, and coal. This acquisition comes as energy investment shifts toward an 'all of the above' approach under the current administration.

Coal's role in the AES portfolio raises questions that many infrastructure funds have avoided since the Paris Agreement. While renewables make up 54 percent of AES's 34.4GW capacity, coal still accounts for 15 percent of generation. The company's energy infrastructure business unit, which includes coal and gas, generated $4.1 billion in revenue through Q1-Q2 2025, compared to $2.1 billion for renewables.

Despite AES's 2022 pledge to exit coal by 2025, the timeline has slipped. Sources indicate coal will represent less than 5 percent of revenues by the deal's expected 2026-2027 closing, based on decommissioning plans. This mirrors trends seen in ECP's recent Ohio coal and gas plant acquisition, which required a separate investment vehicle due to LP concerns but was still three times oversubscribed. As 'any and all' energy investing gains momentum, AES may not be the last deal forcing investors to confront how much coal exposure is acceptable.