Energy storage in medium and cold regions

Which thermal energy storage system is best for space heating?

The double U-tube borehole thermal energy storage (BTES) integrated with ground coupled heat pump (GCHP) and evacuated tube solar collector (ETSC) system was found to be most appropriate for space heating in cold climate zones.

How do seasonal thermal storage systems improve intermittency of solar energy?

Seasonal thermal storage systems overcome the drawback on intermittency of solar. Heat pump and solar collectors with low-temperature storage improve the performance. Climate, storage temperature, energy efficiency, and life cycle cost are discussed. A decision support flow chart is presented for selection of system options.

What is seasonal thermal energy storage (STES)?

In the seasonal thermal energy storage (STES) technique, the available solar radiation in summer is harvested by solar thermal collectors and stored in large storage tanks or in the ground to be used during winter. The STES system is one of efficient systems for the heating application in building sector, especially in cold climate zones , .

What is cold thermal energy storage?

Cold thermal energy storage (TES) has been an active research area over the past few decades for it can be a good option for mitigating the effects of intermittent renewable resources on the networks, and providing flexibility and ancillary services for managing future electricity supply/demand challenges.

What are the different types of thermal energy storage systems?

The STES systems are typically categorised in four types; hot-water thermal storage (HWTS), borehole thermal energy storage (BTES), aquifer thermal energy storage (ATES) and water gravel pit storage (WGPS). Among these types, the ATES and BTES are most commonly used due to their cost-effectiveness .

What makes a good thermal storage system?

Systems based on sensible heat storage, latent heat storage and thermo-chemical processes are presented, including the state of maturity and innovative solutions. Essential for the effective integration of thermal storage systems is the optimal adaption to the specific requirements of an application.