Abstract: The present invention relates to a thermal energy storage system comprising an energy storage (2) having a vertical temperature gradient and an internal combined heating and cooling machine (15). The internal combined heating and cooling machine (15) is adapted for retrieving energy having a first temperature from the energy storage, while simultaneously returning heated energy having a second higher temperature and cooled energy having a third lower temperature. The invention also relates to a method for using the thermal energy storage system.
Type:
Grant
Filed:
November 1, 2013
Date of Patent:
December 13, 2016
Assignee:
SKANSKA SVERGIE AB
Inventors:
Hans Pilebro, Tobias Strand, Rasmus Vestin