Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
In Spain, electricity distribution represents a quarter of the total electricity cost, and consists of 347 companies classified in two different groups: five larger utilities, which feed from the transmission and have, on average, five million points of supply (P.o.S.); and 342 smaller companies, which feed from lower voltage levels and have, on average, less than 5.000 P.o.S. The unitary remuneration is four times higher in the case of the smaller companies, which are operating at lower voltage levels and with a worse quality of service.