With the expanding installed capacity of renewable energy

thermal power plants are gradually transforming into regulated power sources.Thermal storage technology stores surplus heat and releases it on demand

achieving thermal-electric decoupling and enhancing units' peak shaving and load support capabilities.Meanwhile

the emerging Carnot battery technology provides a transformation path for thermal power generating units facing shutdown

with the thermal storage system as its core component.It summarizes the classification of thermal storage technologies and their application status in thermal power plants.Solid and water thermal storage technologies are mature and have long used multiple projects.Driven by the spot electricity market

molten salt thermal storage technology gains wide attention

with several coupled peak shaving and steam supply projects commissioned in the past three years.In the future

with the development of Carnot battery technology

molten salt thermal storage is expected to find new applications in thermal power scenarios.