Engie chief executive Isabelle Kocher has told a press briefing that the French company is aiming to switch all of its gas operations to biogas and renewable hydrogen by 2050.

“Most of the energy consumed is for heating, cooling and transport,” she said. “By massively deploying green gas we could decarbonizes all that.”

The company has around 70 biogas projects worldwide, including 40 in France.

It estimates biogas from agricultural and other waste, without using food crops, has the potential to grow from around 1 per cent of gas use in France to 10 per cent by 2025, 30 per cent by 2030 and 100 per cent by 2050.

ENGIE also wants to develop hydrogen production units, converting electricity produced by renewable sources into gas to power fuel cell vehicles.

Ms Kocher was reported as saying: “We will progressively make our gas greener so that by 2050, it can be 100% green.”