Homeworkers spending far more time indoors could face a bill shock from their usage over the last three months once they submit readings, data suggests. With more devices plugged in, heating on and consumption up, typical bills could be £113 higher from January to March usage than usual. In the first three months of the year, households typically consume almost 30 per cent of their annual energy making it the most expensive quarter of the year. This, combined with the added cost of spending more time at home and the cold snap from Storm Darcy, could see many households face a shock bill, according to data from Compare the Market.