Better energy efficiency measures could cut UK costs by £7.5bn

Government must incentivise households to make energy saving improvements to improve air quality and warm homes

More efficient use of energy in the UK would save as much power as could be generated by six new nuclear reactors and shave 7.5bn from energy costs, experts have calculated.

But to achieve such savings would require substantial changes to government policy because there are few incentives for households to carry out the necessary measures, such as insulation, which can take 20 years to pay for themselves via bill savings.