From the budget:

Meeting carbon budgets will require a transformation of the way the UK meets its energy needs. The Government’s existing framework will enable a ten-fold increase in renewable investment by 2020. To protect investment and jobs in low-carbon energy, and to strengthen the long-term framework for a low-carbon energy future, Budget 2009 announces:

• £405 million to support low-carbon industries and advanced green manufacturing, to help make the UK a worldwide leader;
• that UK renewable and energy projects stand to benefit from up to £4 billion of new capital from the European Investment Bank, removing blockages in project financing;
• an uplift in support for offshore wind investments that reach financial close between now and 2011 through the Renewables Obligation. This is expected to support £9 billion of investment and power up to 2.8 million homes;
• extending support for combined heat and power through climate change levy exemptions, helping bring forward £2.5 billion of investment and 3 GW of capacity by 2015, and supporting employment; and
• a new funding mechanism to support up to four carbon capture and storage demonstration projects, and £90 million to fund detailed preparatory studies.

Actual investment by the government seems to be about £0.5 billion.

Far, far, far too little.