The Inevitability of a 100% Renewable Energy Supply with Rosie Barnes
The Fully Charged Podcast
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Is There a Limit to Winter Bins?
The power that a wind turbine captures is proportional to the square of the blade length. The volume doesn't increase with the square, the volume increases with the cube. There's nothing stopping us from making a 200 meter long blade now. It would just produce electricity that was expensive we can make now. Onshore turbines are so much bigger than offshore ones because they've got different design constraints. Offshore transport keeps things small - it's not a problem for them.
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