Carbon Emissions Reduction Target (CERT)

CERT is the main government policy aimed at reducing carbon emissions by improving the energy efficiency of households in Great Britain.

It obliges all of the big energy suppliers to deliver energy efficiency measures like loft and cavity wall insulation to homes across Great Britain. Many of these measures are discounted and in some cases are provided free of charge and it is estimated that delivering this policy will cost the energy industry £5.5 billion in the period between 2008 and 2012. Like other energy companies we include an allowance for the cost of meeting this objective in your energy prices.