In an interview with Stephen Sackur on the BBC's Hardtalk, Mr Massara also warned of future power cuts unless there is a "stable environment" for investment. You can watch the full interview on BBC World News on Monday 11 November at 04:30, 09:30, 16:30 and 21:30 GMT and on the BBC News Channel at 04:30 GMT. Watch more clips at HARDtalk's website Centrica warns Labour energy plan risks 'ruin' for firms Npower to raise energy prices by 10.4%