EDF UK has raked in hefty profits, with soaring electricity prices powering its rebound from last year’s losses. The French energy giant’s UK arm recorded bumper earnings of £1.12bn compared with a £21m loss the year before, driven by the vastly improved performance of its nuclear electricity generators. Unlike generators which rely on gas to produce power, it has benefitted from higher electricity prices across wholesale markets. This has provided a huge boost in revenues without a comparable rise in costs. However, its…