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Last Updated: Wednesday January 20 2010 17:55 GMT

Poo used to create electricity

It might smell disgusting but poo could be used to power your house!

Hayley's been to a sewage plant in London where they use 3.5 million people's toilet waste to create electricity.

The poo is compressed into a 'poo cake' and the cakes are then burnt in a furnace to produce steam, which then powers a turbine to create electricity.

Watch her full report here.