Daylight aerial images show aftermath of exploded gas tank at Oxford green energy plant which blew up after it was struck by lighting in blast which sent huge fireball into the sky

https://www.dailymail.co.uk/news/article-12587491/Severn-Water-gas-tank-exploded-lightning-fireball-ground-shake.html

Second link vid of damage.

https://www.dailymail.co.uk/news/article-12587491/Severn-Water-gas-tank-exploded-lightning-fireball-ground-shake.html#v-4727645048830248657

>>19656261

>more like gas balloons

That is pretty much what they are.

Essentially just a gas tight membrane fitted over a compost bin to catch the gas from decomposition.