Europe's largest energy firm, E.On, has reported an 18 percent increase in quarterly profits thanks to a revenue growth in Italy and Spain, offsetting a recent decline in the UK. ┬á E.OnÔÇÖs net profit of 2.5 billion euros in January to March is up from 2.1 billion euros last year. ┬á The German firm said that the recession had hit UK electricity usage, with sales falling 8 percent compared to the same period last year, but revenue was still boosted by the opening of new power stations in Italy and Spain.