Hi, I always receive high electrical bills average £180/month, I have monitored usage, switched appliances off, reduced usage by not using appliances; i.e. dishwasher. Nothing I do seems to reduce the amount of the electric bill. I have switched supplier, always make sure tariff is discounted lowest rate, compared my usage with comparable usage; i.e. similar size house + occupants and my bill is always the highest by a significant amount. It was mentioned about reverse polarity and this could cause wastage and unnecessary usage subsequently higher cost. I have no electrical experience so any advice, guidance would be appreciated