Live up the road from a new digester they are putting into operation.
That farm when he bought it had a dairy enterprise on it already. He of course couldnt settle on just several hundred cows and had to nearly triple the numbers, all while trying to get them on lely robots in a grazing system!
Pure madness and hardship.
The bad smell was because of the offal and fish waste going into the digester. I never knew this before but so long as they pasteurized it first you could put carcasses of fallen animals in the digester.
I know for sure they fuel it with offal and fish waste anyway. Smell was supposed to have been absolutely awful, even farmers themselves were complaining. Word is he is not allowed to spread it on the land anymore, my guess is this is the reason the cows are going so he doesn't need the grassland and can inject in the digestate while ploughing or tilling.
He was experimenting with drying it and pelleting it but I can't see how that could be feasible to do with all the digestate.