Power'Sad to see' | Co-firing ammonia with coal would gobble up at least four million tonnes of clean hydrogen: BNEFTotal announced Asian co-firing projects could require the equivalent of 40-220GW of electrolyser capacity, data from BNEF indicatesThe 4.1GW Hekinan coal-fired power plant, one of the most polluting in the world.Photo: WikimediaRachel ParkesDeputy Editor