What energy options does the UK have?

22 November 2011 Last updated at 19:19 ET Help

The government has said it wants to completely de-carbonise our electricity supply by 2050.

The measures will have a huge impact on how we generate power.

Most of our electricity currently comes from old-style coal and gas plants - neither of which will be possible in future.

Professor David Mackay is the government's chief scientific advisor on climate change, explains the energy options available to the UK.

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