Toyota Tsusho has swooped to take control of SB Energy – the renewables group set up by billionaire Masayoshi Son after the Fukushima disaster – creating a beefed-up force in Asian green power.

Toyota Tsusho, part of the Toyota Group best known for the automotive giant, will take an 85% share of SB Energy under a deal with telecoms giant SoftBank Group, which has been suffering heavy losses and will retain the balance.