The total included $520m of venture capital investments over 14 deals, up from a year-earlier $311m.

Almost all the VC funding went to downstream wind businesses, with Indian power-producer ReNew Power the biggest beneficiary with $265m raised. Eren Renewable Energy and Apex Clean Energy were other notable targets for venture capital.

Last year’s top M&A transaction was the $2bn acquisition of Pacific Hydro by China's State Power Investment Corporation, said Texas-based Mercom.

The