Germany has a with a highly skilled , a low level of , and a high level of . It is the , as well as the world's and . Its PPP-adjusted GDP per capita amounted to 115% of the EU average in 2024. The contributes ap.
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Compression of air creates heat; the air is warmer after compression. Expansion removes heat. If no extra heat is added, the air will be much colder after expansion. If the heat generated during compression can be stored and used during expansion, then the efficiency of the storage improves considerably. There are several ways in which a CAES system can deal with heat. Air storage can be , diabatic, , or near-isothermal.
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