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The company was created in 1992 at the time of a merger between Hidroeléctrica Española and Iberduero . The companies were originally born in Spain to deliver hydroelectric power , making it a sustainable business at its very core .

Headquartered in Bilbao , Spain , Iberdrola is now a multinational corporation and the second largest earner on the planet , gaining its increasing revenue from more sustainable energy practices . energydigital . com 27