Heat

Over nearly three decades now the electricity and gas networks have been working hard to keep their costs low for their customers and to provide them with an excellent service. In that respect they have delivered: costs are 17 per cent lower since 1990; customer service scores are at record highs of around 8.7 out of 10; the public have 59 per cent fewer power cuts and their duration has reduced by 84 per cent while gas networks are so reliable that customers would have an unplanned interruption to their supply once every 140 years.