Balfour Beatty put in a planning application for a Bioenergy facility at Chittening (14/03210/F) but this was refused on air quality grounds. Maybe this is related?
Edit: I'm having trouble following this, but it looks like they may have got permission on appeal. No indication of a rail connection that I can see though.
Supplied by a siding perhaps? The
FOSBR▸ Bookface pages had no clear answers to the question they posed last time I looked.