Cost analysis of molten salt energy storage system

The molten salt medium related costs make up typically a significant proportion of the overall TES system costs. For large-scale systems, molten salt costs are currently in a range from 4–20 € kWh th −1 depending on exact market prices and temperature difference. The material research on molten salt related aspects is diverse.

National Renewable Energy Laboratory (NREL) is leading the liquid (molten salt) power tower pathway. As part of the Phase1 effort, NREL completed a technoeconomic cost analysis of the Gen3 liquid pathway design. This paper summarizes the methodology and results of that analysis.

In this paper, we develop a model to investigate the techno-economic performance of a nuclear plant coupled with thermal energy storage, specifically using two tanks of molten salt as used in concentrating solar power (CSP) systems and increasingly of interest for nuclear reactors.

The heating efficiency of 74.57% is experimentally verified by building a molten salt furnace, and a 135 MW blast furnace gas thermal power unit is simulated using modeling to explore the energy storage and peak shifting performance and economic feasibility of the system.

Exergy analysis is an effective energy-shaving diagnostic method that is applied in thermal-electricity coupling molten-salt heat storage systems. This method can identify and analyze the parts and links with the largest losses.

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6 FAQs about [Cost analysis of molten salt energy storage system]

How is molten salt energy storage cost determined?

The total capital cost is determined by adding the total cost of the salt to the base capital cost. With two different molten salt energy storage systems taken into consideration, the most feasible system is determined through the cost comparison between the two types of energy storage systems.

What is molten salt thermal energy storage?

The article gives an overview of molten salt thermal energy storage (TES) at commercial and research level for different applications. Large-scale molten salt storage is a commercial technology in the concentrating solar power (CSP) applica- tion.

What is molten salt storage research?

Molten salt storage research topics on CSP system level. Molten salt storage sets the commercial standard in CSP plants at the time of writing. Major indicators to evaluate and compare storage systems are the capital cost of the TES system and the LCOE. Several other TES technologies are developed for CSP.

What is molten salt storage in concentrating solar power plants?

At the end of 2019 the worldwide power generation capacity from molten salt storage in concentrating solar power (CSP) plants was 21 GWh el. This article gives an overview of molten salt storage in CSP and new potential fields for decarbonization such as industrial processes, conventional power plants and electrical energy storage.

What is molten salt storage in CSP?

This article gives an overview of molten salt storage in CSP and new potential fields for decarbonization such as industrial processes, conventional power plants and electrical energy storage. Concentrating solar power (CSP), also known as solar thermal electricity, is a commercial technology that produ- ces heat by concentrating solar irradiation.

Are molten salt storage systems a commercial standard?

Hence, at the time of writing, central receiver power plants with molten salt both as HTF and heat storage medi- um are the commercial standard for large-scale tower sys- tems. The research on overall CSP system integration and Table 3. Molten salt storage research topics on CSP system level.

Cost analysis of molten salt energy storage system