UK power generator Drax has finished the conversion of its North Yorkshire power plant to biomass firing, with the fourth and final unit being completed in August. The conversions began in 2013, and the fourth conversion was the cheapest of them all, coming in at £30 million (€33 million/US$38 million). Drax plans to convert its other two coal-fired power plants to fire gas in the coming years, already having lodged proposals to the Planning Inspectorate.