It's by no means derelict, but there is a wonderful celebration of functional old technology at the Wall family sawmill in rural Waterford. They're still off grid and have three (for redundancy) Crossley stationary engines to generate their own power for their big sawmill, planers, and sharpening operation. They fuel it with a 50% mix of diesel and old engine oil I think, using a centrifuge yoke for cleaning the rubbish out of the old oil.
They built the balcony on our new house extension here in the woods. Lovely people.