Electricity stocks declined on Wednesday after British energy company SSE warned that profits would not grow this year after "a challenging business environment" in the first half.SSE, which provides gas, electricity and telecoms services, said adjusted earnings per share (EPS) for the year ending March 2015 are now expected to be "around the same level" as the year before.The company had previously guided to EPS "around or slightly greater" than the 123.4p made last year.First-half adjusted EPS growth was limited to just 5.8% after warmer weather and a number of other "issues" affected SSE's results.These included electricity-market reform, the electricity distribution price control review and an energy-market investigation. All of these were taking place "at the same time as the run up to the UK general election", the company said.Meanwhile, Will Morris, the boss of the 'Big Six' energy group, said in an interview with Sky News that management were "looking very hard" at cuts to household bills on the back of falling wholesale costs.A number of other stocks in the electricity sector were also trading in the red on Wednesday, including Helius Energy, Greenko Group, Seaenergy, Infinis Energy and Drax.Top performing sectors so far todayIndustrial Metals & Mining 1,334.43 +1.58%Mobile Telecommunications 4,953.87 +0.68%Mining 15,460.86 +0.53%Beverages 14,520.60 +0.27%Pharmaceuticals & Biotechnology 12,937.31 +0.21%Bottom performing sectors so far todayElectricity 9,603.35 -2.62%Food & Drug Retailers 2,769.62 -1.96%Forestry & Paper 11,363.78 -1.95%Aerospace and Defence 4,601.49 -1.18%Automobiles & Parts 7,463.11 -1.18%