LONDON MAYOR Ken Livingstone and energy giant EDF Energie this week signed a deal to make the capital a test bed for sustainable energy.
More than 40 schemes are already planned around the city, with each applying different technologies to different consumer groups.
Large scale projects like new combined heat and power stations and neighbourhood wind turbines will demonstrate to the world's top 20 cities what is actually achievable, said London's deputy mayor Nicky Gavron.
Small scale introduction of photovoltaic cells on City Hall this summer will also set an example that other public buildings will be expected to follow, she said.
EDF chief executive Vincent de Rivaz said he expected to invest £25M in the schemes by 2010.
The joint venture will see EDF fund 81% of the project costs with the mayor's London Climate Change Agency contributing the remaining 19%.
Designs for the first phase of developments are expected to be completed early this summer with the first electricity being produced for domestic and industrial use next year.