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Macquarie Acquires Island Green Power, Accelerating Infrastructure Funds' Rise in BESS

Macquarie Asset Management's May 2025 acquisition of Island Green Power exemplifies a structural shift: infrastructure funds are acquiring BESS development platforms across Europe, a market long dominated by major utilities.

Macquarie Acquires Island Green Power, Accelerating Infrastructure Funds' Rise in BESS

CountriesRoyaume-Uni
CompaniesEnel, RWE, Iberdrola, Macquarie Asset Management, Island Green Power
SectorStockage énergie, Batteries
ThemeInvestissements & Transactions, Transfert d'Actifs Énergétiques

Major European utilities, including Enel, RWE and Iberdrola, were among the first to invest in battery energy storage systems, designated by the acronym BESS, more than a decade ago. These groups deployed their corporate balance sheets and internal capabilities—engineering, construction, electricity market trading, asset management—to develop and operate the first generation of storage projects. Their early engagement responded more to strategic and technical imperatives than commercial ones.

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Stockage énergie