ARRANGEMENT AND METHOD FOR STORING THERMAL ENERGY

摘要

The present invention relates to an arrangement (100; 200; 300) for storing thermal energy, comprising at least one subterranean chamber (105; 205; 305) for holding a first fluid (106), wherein a passage (110) holding a second fluid (107) is extended outside at least a part of said at last one chamber, wherein at least one channel (102) is arranged to allow fluid communication of said first fluid (106) between different sections of said chamber, and/or in that at least one channel (101) is arranged to al- low fluid communication of said second fluid (107) between different sections of said passage (110). The present invention also relates to a method for improving an arrangement for storing thermal energy comprising the steps of providing at least one channel within said arrangement.