The mill is listed in the
Sistema de Información del Patrimonio Cultural Aragonés (sipca.es)
and there we find that the workspace above the cárcavo would still contain a rather well preserved grinding installation: one pair of stones, a stone case, a feeder hopper, a crane. In my opinion, the other equipment (8) seems a bit over the top compared with the grinding capacity of one pair of stones.
Sipca does not mention equipment to produce electricity.
However, this mill once did and on old maps (Instituto Geográfico Nacional, map MTN50-0247 of 1930) a power line is drawn between the mill and the village.