As Energy Week draws to a close... but someone forgot to tell fickle Labour!

In 2005, the Labour Party manifesto, stated: "We will continue to promote and develop renewable energy sources, to seek high standards of energy efficiency in the public and private sectors, and to support emissions trading in Europe and beyond."

Now Labour ministers are planning a U-turn on Britain's pledges to combat climate change that effectively abolishes its targets to rapidly expand the use of renewable energy sources such as wind and solar power.

Leaked documents seen by the Guardian show that Gordon Brown will be advised today that the target Tony Blair signed up to this year for 20% of all European energy to come from renewable sources by 2020 is expensive and faces "severe practical difficulties".

According to the papers, John Hutton, the secretary of state for business, will tell Mr Brown that Britain should work with Poland and other governments sceptical about climate change to "help persuade" German chancellor Angela Merkel and others to set lower renewable targets, before binding commitments are framed in December.

The list of broken promises grows by the day. The EU referendum, closing many local NHS wards and now a lack of conviction on an issue that Labour have championed. Where will it end?