Fatbergs have been considered as a source of fuel,[12] specifically biogas.[13] Most of the fatberg discovered in Whitechapel in London in 2017, weighing 130 tonnes (128 long tons; 143 short tons) and stretching more than 250 metres (820 ft), was destroyed, but some of it was converted into biodiesel.[7][14]

I'd be helping renewables! (joke)

Still, what a big boy that bastard must have been to behold