fathopes energy collects recycled cooking oil from fast food chains like mcdonald's and kfc, as wellala lumpur and singapore. the company gathers between five and 11 tonnes of used oil per month. the energy portfolio of the future is going to be extremely diversified and extremely indigenous. by some estimates, aeroplane engines account for 3.5% of global warming. but by 2050, this sector has set its sights on being net zero. or, as the british government calls it, jet zero. one way to get there is by using sustainable aviation fuel, which is made up of vegetable oils and animalfats rather than fossil fuels. but right now, it makes up less than i% of the aviation fuel supply. the industry is going to need almost 500 tonnes to meet its decarbonisation goal. to get there, a lot of chips in the fryer. how big are they? what's in them? how many of them... finnish company neste, the world's largest producer of saf, recently built a $1.8 billion refinery here in southeast asia. but here's the challenge — sustainable aviation fuel is three—to—five times more expensive than traditionaljet fu