Tower CSP Power PlantWind/PV/CSP Thermal Storage Hybrid Power PlantSolar Thermal MSES PlantsPower Generation, Trasmission, Load Center and Storage Integrated Power Plant
Solar Thermal MSES Plants Overview
CSP MSES Power Plant, as a safe, efficient and low-cost new energy storage power plant, uses electric heaters to charge storage tank with solar thermal energy as a supplement. It uses high temperature MS as energy storage medium and steam turbine generator to produce electricity. The power plant features a small solar field, large storage capacity (GW level), long storage hours (4-12 hours), and high system efficiency. By installing in parallel multiple pairs of molten salt tanks, we can easily make a large-scale (10GWh level) energy storage system, providing large-scale energy storage service for the grid or power producers.
Operational Mode
Energy Charging Mode
During the off-peak hours or when PV/wind is curtailed, the excess electric energy will be converted into thermal energy by using electric heaters to heat molten salt to 565℃ and stored in tanks.
Energy Supplement Mode
Use the solar field to collect solar to heat the molten salt, make up for the energy loss in the heat-electric conversion process and improve the charging and discharging efficiency.
Discharging Mode
In the peak hours, the high-temperature molten salt will be used to exchange heat with water through the steam generation system to produce superheated steam and drive the steam turbine to generate electricity.
Auxiliary Operation Mode
In the rest of the time, the CSP MSES Power Plant can operate at a load as low as 15%, providing its own parasitic load and inertia and reactive power support for the grid, ensuring safe and stable operation of a grid with high penetration of new energy.
Advantages
High Charge and Discharge Efficiency
Large Energy Storage Capacity
Long Service Life
Short Construction Period
High Safety
Environment-Friendly
Strong All-weather Power Supply Guarantee Ability
By installing a solar field, the CSP MSES Power Plant can achieve more than 85% charge and discharge efficiency, or even higher.
A single MS tank can store tens of thousands of tons of MS. By installing in parallel more tanks, we can easily make a large-scale (GW level) and long-term (4-12 hours) energy storage system which can be used to store a substantial amount of wind or PV energy.
The designed service life can be 25-30 years. After the power plant is decommissioned, the MS as a heat storage medium can still be recycled.
Construction of such a power plant can be completed in two years.
MS, as the energy storage medium, is a stable material and not easy to decompose and leak. The whole MS heating, thermal storage and transfer process is purely a physical change which maintains normal pressure without explosion risk. There has been long-term stable and safe operation experience of MS in other fields such as chemical industry.
The manufacturing and operation of the MSES system does not produce any pollution to the environment.
With a small investment, by installing a natural gas MS heating furnace, in extreme weather (continuous rainy days), it can stabilize power supply according to the demand of the grid.
