Electric heat storage technology is an important approach to promote the utilization of electric energy

which has a broad prospect in the aspects of deep peak shaving

improving the utilization rate of new energy and protecting environment. In order to explore the adaptability of heat storage in steam heating

molten salt heat storage system and solid heat storage system are designed and compared based on specific engineering project. An optimal design scheme of molten salt heat storage system is put forward

and comparison is conducted from the aspects of system performance

economy and reliability. The result shows that

the proposed optimization scheme is beneficial to save investment

save space and simplify the system. For the electric energy storage heat supply station with simutaneous heat storage and heat discharge working conditions

the molten salt heat storage mode it is recommended

which is more stable for steam generation. Although the molten salt heat storage system is more complex and the total investment is slightly higher

it has higher heat exchange efficiency

lower power consumption

lower operating cost and higher income. If the total investment can be further reduced

molten salt heat storage technology will become the most competitive clean heating method in heat storage.