New Delhi, Dec. 23 -- Google's parent Alphabet on Monday announced that it would purchase clean energy developer Intersect for $4.75 billion in cash, plus existing debt, marking one of its largest deals to expand its data centre capacity.

The deal comes amid a push by Big Tech to invest in energy firms, with power grids in the US struggling to keep pace with generative AI's increasing energy demands.

"Intersect will help us expand capacity, operate more nimbly in building new power generation in lockstep with new data center load, and reimagine energy solutions to drive US innovation and leadership," Google and Alphabet CEO Sundar Pichai said, speaking on the deal.

Google already owns a minority stake in Intersect from a previous $800 ...