I can't speak for the delivery and conveyor phase when the product is in pellet form, but once it is pulverised in the Mills and fed up to the burners there are loads of blockages. I worked there for three years, during the Biomass upgrades of the three Boilers, on the oil ignition burner system replacement project. Place was an absolute nightmare to work at, everything is on such a massive scale.
Clean energy? Where do the pellets come from? Why can't you source pellets from the UK? Why don't you include the CO2 emissions from the shipping and transportation process? If you did include those emissions from transport then surely using UK sourced fuels (including coal) would match bogus emission levels being stated by Drax? Politics and trade deals which does not suit UK workers..