| 摘要 |
A wind turbine comprises a set of turbine blades 16 mounted for rotation at the top of a hollow column 10. The blades are arranged to power a generator 20 to generate electricity. The hollow space within the column 10 is used to store potential energy when the generator is not consuming all the power from the rotating blades, and the generator is adapted to be powered by the potential energy when the rotating blades are idle. The potential energy may be in the form of a raised weight, a tensioned spring or pumped water. |
