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Wind turbines for electricity and mobility

  • Cornel Stan

摘要

Wind generates energy flows, because of its speed, to the power of three! The nominal output (target size) of all wind turbines in the world sounds enormous at 906 terawatt hours, but that only accounts for 7.6% of global electricity production. Between the nominal output and the actual value, the full-load hour was introduced (annual utilization rate, capacity factor), which remains at an average of only 20%. Because the wind cannot stop after flowing through a wind turbine, a "power coefficient" is also derived. And this is only 60%, despite optimization of the flow profiles of the blade and its directional flexibility. 30,000 on-shore wind turbines, and 5500 off-shore (offshore) and entire wind farms have already been built, with full-load hours generally increasing. However, a single nuclear power plant can do a hundred times as much as a wind farm! Nevertheless, wind turbines currently produce a fifth of the electrical energy.