Thanks for the information about turbojets turbines, Raw-Al. Don't worry, I avoid beliefs. Are blades temperature in utilities gas turbines as high as in aircraft engines and spark ignition automotive turbochargers, not to speak about steam turbines?
Anyway, why would utilities invest so much money in wind turbines if they are useless? It doesn't make sense. On this map (sorry in French but you should be able to find it in English too) we can see the how the electricity in every European country is generated at each moment ("in real time" they say as if there's an unreal time
).
https://www.electricitymap.org/?page=country&countryCode=DKAs I write, almost 30 GW are generated in Danemark by wind turbines, by far their main source of electricity — at least right now. Click on other countries to get the relevant info.
Of course, thermal winds stop late at night, but most winds are not thermal. Moreover,
most electricity consumption occurs day time before the meals for cooking food and from industries — which usually are not working at night; that's why the kW.h is often at a reduced price during the night.
PS: Oh, yes, they are!
http://www.wartsila.com/energy/learning-center/technical-comparisons/gas-turbine-for-power-generation-introduction
The temperature at which the turbine operates (firing temperature) also impacts efficiency, with higher temperatures leading to higher efficiency. However, turbine inlet temperature is limited by the thermal conditions that can be tolerated by the turbine blade metal alloy. Gas temperatures at the turbine inlet can be 1200ºC to 1400ºC, but some manufacturers have boosted inlet temperatures as high as 1600ºC by engineering blade coatings and cooling systems to protect metallurgical components from thermal damage.