Marks Barfield, the architect behind the London Eye, has revealed the first images of its new wind turbine concept.
The turbine - which was developed with young engineering firm XCO2 - is aimed at urban sites.
It is hoped the windmills will be erected at some of London's most prominent sites.
The visualisation seen here was put together to illustrate how the project would look next to Norman Foster's City Hall, on London's South Bank.
The design is aimed at urban developments, because of its use of five vertical 'triple-helix' wind turbines called 'quiet revolution', each 5m high and 3m in diameter.
This technology - developed by XCO2 - is designed to achieve 'ultra-quiet operation and more efficient utilisation of urban winds'.
'Wind energy is one of the best forms of renewables around,' David Marks and Julia Barfield said in a joint statement. 'But most wind turbines are being planned in remote locations, without any existing infrastructure.
'This isn't efficient, as 30 to 50 per cent of energy gets lost through transmission. We believe cities like London should take much greater responsibility for their own energy generation.
'London has a unique opportunity to make a difference in time for the Olympics,' the pair added. by Ed Dorrell