Cold Energy: This highlights the main target on storing potential energy in the shape of substantially very low temperatures. It is the counterpart towards the significant-temperature energy saved in warmth batteries. Even further progress of CTES technology for refrigeration units is the key exercise within the SINTEF-challenge KPN PCM-Retail store. https://socialbuzzmaster.com/story6241649/not-known-facts-about-cold-thermal-energy-storage