Sunday Herald: IF YOU wanted a flavour of the mood in UK renewables at the moment, it was worth visiting Bilbao last week. This was where Ignacio Galàn, the charismatic chairman and chief executive of Iberdrola, owner of ScottishPower, was holding a press conference ahead of the company’s annual meeting. Both there and at an interview with the Sunday Herald beforehand, he raised concerns about ScottishPower’s ability to invest in the UK electricity network. These feed into several other troubling …