The original Energy Efficiency Commitment 1 (2002-2005) program required that all electricity and gas suppliers with 15,000 or more domestic customers must achieve a combined energy saving of 62 TWh by 2005 by assisting their customers to take energy-efficiency measures in their homes: suppliers had to achieve at least half of their energy savings in households on income-related benefits and tax credits.
In the second phase of the Energy Efficiency Commitment (2005-2008) scheme, energy saving targets were raised to 130 TWh suppliers, and here suppliers with at least 50,000 domestic customers (including affiliated licenses) were eligible for an obligation.
The third phase of CERT (previously known as Energy Efficiency Commitment 3) originally ran from 2008 to 2011 and increased the previous targets to 154 MtC. A consultation document was published alongside the 2007 Energy White Paper, and responses were invited by August 15, 2007. The new scheme is regulated by Electricity and Gas (Carbon Emissions Reduction) Order 2008 (S.I. 2008/188). In 2009 the UK Government increased the emission reduction target by a further 20% to 185... Read More