![]() The SunShot Initiative's goal of an LCOE of 6 ¢/kWh, without subsidies, is expected to be achieved with molten salt power tower CST plant of nameplate capacity 200-MW e. Nevertheless, an optimally designed LHS has the potential to reach both storage capital cost ( ψ) less than $15/kWh t and exergetic efficiency greater than 95%. Although the round-trip exergetic efficiency of sensible TES can attain close to 100%, the storage capital cost of current 2-tank sensible TES is reported as $27/kWh t. ![]() DOE SunShot Initiative requirements, the optimal design of a TES for integration into CST power plants should yield round-trip exergetic efficiency ( ξ) greater than 95% and a storage capital cost ( ψ) less than $15/kWh t for a minimum discharge period ( t D) of 6 h. The Solar Advisor Model (SAM) developed by the National Renewable Energy Laboratory (NREL) and the Sandia National Laboratories provides the framework to investigate the impact of geographical, geometrical, and operating parameters on the performance of various CST technologies including parabolic trough, molten salt power tower, and dish Stirling power plants. To achieve the SunShot Initiative goals, a critical that the exergetic efficiency be very high to ensure that heat quality is maintained after storage.system-driven approach that examines the cost and efficiency is necessary to understand the benefits of CST with TES. Pitchumani, in Advances in Concentrating Solar Thermal Research and Technology, 2017 10.4.4 System integration of latent heat storage with concentrating solar thermal power plants ![]() High-temperature latent heat storage for concentrating solar thermal (CST) systems
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