Shell says it wants to double green energy investment

Company already committed to spend $1bn-$2bn annually in the next two years on low carbon energy

Shell has declared an ambition to double the amount it spends on green energy to $4bn (3.2bn) a year, in a sign of how the Anglo-Dutch company is looking to speed up its move to a future beyond oil and gas.

Maarten Wetselaar, the head of the gas and new energy unit which generates a third of the company's revenues, said he wanted to raise Shell's investment in low carbon energy.