Fernández (Master Degree in Chemistry and PhD in Chemical Engineering by the University of Valladolid) is responsible for the Biomass Characterisation Laboratory in CEDER-CIEMAT from 1995. The Biomass Characterisation Laboratory (LCB) is currently considered the Spanish reference laboratory in the energy characterisation of solid biofuels, where companies and/or public organisations from all over Spain send samples to be analysed. Consequently, the LCB does not only carry out physical and chemical tests but it also advices companies in subjects such as sampling, general interpretation of results, emission predictions of harmful compounds in a thermochemical facility, and the predictions of slag formation and corrosion. The R&D&i activities of the Biomass Characterisation Laboratory (LCB) are focused on three main research lines: 1) Development of energy, physical and chemical characterisation methods of biomass and especially of solid biofuels. 2) Quality of biomass and its ash as well as its energy use. 3) Experimental research and reduction of sintering and corrosion in thermochemical processes, at the laboratory, pilot plant and industrial plant. As a consequence, he has participated in more than 50 national and international R&D projects. He has written several publications and communications in conferences and international journals.