Typical household energy bills in the United Kingdom are expected to increase significantly in January, with forecasts projecting a rise of £276 to reach approximately £2,000 per year. This represents a substantial jump from current rates, with the price cap alone set to increase by 16% from its October level, according to consultancy Cornwall Insight.
Experts at price comparison sites identify switching to a fixed-rate energy tariff as the most effective immediate action for households seeking to mitigate the predicted price increases. Currently, there remain 34 fixed-rate deals available below the anticipated January price cap, with some options offering savings of up to £324 annually compared to projected rates. The cheapest option identified is a 12-month fixed rate at £1,675, which would beat the October price cap by £48.
Beyond tariff switching, multiple practical adjustments to heating systems can yield measurable savings. Adjusting combi boiler flow temperatures from their typical setting of 70C-80C down to 60C or below could reduce annual costs by approximately £60. Similarly, reducing hot water temperature to 42C may cut gas bills by around 2%. Lowering household thermostats by just 1 degree Celsius could save approximately £120 yearly, based on guidance from the Energy Saving Trust.
Structural improvements to homes also offer long-term cost reductions. Installing draught-proofing around windows and doors can save roughly £25 annually, while adding insulation to hot water tanks and pipes saves approximately £45 per year. Increasing loft insulation thickness can reduce heat loss, which accounts for about 25% of home heat loss. Cavity wall insulation installation is estimated to yield savings of approximately £200 annually for eligible properties.
For households requiring boiler replacement, the government’s boiler upgrade scheme provides grants of £7,500 toward heat pump installation costs, with additional support available for off-grid properties. However, experts note that heat pump efficiency depends on selecting appropriate electricity tariffs specifically designed for these systems, potentially combined with renewable energy technologies like solar panels to maximize savings.
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