Drax has switched on its fourth biomass generating unit—taking the power station in North Yorkshire a step closer to achieving its coal-free ambitions.  Work got under way on the conversion as part of a planned maintenance program in June, with Drax’s team of engineers completing the work required, on schedule, in just over two months.  Having upgraded three of its coal units to use biomass, Drax is already the biggest decarbonization project in Europe. The conversion of a fourth unit means it is on course to be off coal before the ...