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Something I don't get... Wind turbines are efficient (to convert mechanical wind energy into electric energy) between 20% and 45% (with a theoretical upper lim

Something I don't get... Wind turbines are efficient (to convert mechanical wind energy into electric energy) between 20% and 45% (with a theoretical upper limit of 59%). Solar panels between 15% and 22%. Both with variable input energy. So I am not sure how 34-36% thermal efficiency is so bad, especially for a near-continuous production (or at least, with a predictable thermal input)?

Gwypaas 4y ago
Because for a solar panel or wind turbine that efficiency is simply lost energy. Catching more is better but as long as it is economical it is fine. For thermal power plants you need to spend money taking care of the waste head leading to more costs.