John Swinney claimed a few weeks back that Scotland is self-sufficient in energy, along with various other SNP politicians. There has been no wind where I live for a few days now so I would like to know where my energy is coming from. Being hypothetical and if the SNP is telling the truth, which I doubt, we should be able to disconnect from every other available power source and still ‘keep the lights on’ in Scotland. I’ll buy more candles to be on the safe side. Ian Balloch, Grangemouth, Stirlingshire.