System-Level Comparison of Sodium and Salt Systems in Support of the Gen3 Liquids Pathway: Paper No. 030007

Armando Fontalvo, Salvatore Guccione, Ye Wang, Shuang Wang, Zebedee Kee, Charles-Alexis Asselineau, Daniel Potter, Felix Venn, Janna Martinek, Craig Turchi, Joe Coventry, John Pye

Research output: Contribution to conferencePaper

5 Scopus Citations

Abstract

This paper presents the comparison of the annual performance and the Levelised Cost of Energy (LCOE) of two high- temperature solar power tower configurations using a 565MWth chloride salt receiver and a 540 MWth liquid sodium receiver. Each power tower consists of a sodium or salt receiver, a 175 m high concrete tower, and a two-tank chloride salt system for thermal energy storage (TES). The power plants were simulated using SolarTherm to estimate their energy per year, capacity factor, and LCOE. The simulation was verified against the System Advisor Model (SAM), showing that the LCOE calculation differences are within ±1.0%. Results showed that the sodium-receiver system yields 69.60 USD/MWh real LCOE, versus 78.55 USD/MWh for the chloride salt system. Results also showed that sodium wins here due to a smaller and more efficient receiver, enabled by higher flux limits and reduced field size, leading to less mirror reflective area and site improvement cost.
Original languageAmerican English
Number of pages10
DOIs
StatePublished - 2022
EventSOLARPACES 2020: 26th International Conference on Concentrating Solar Power and Chemical Energy Systems - Freiburg, Germany
Duration: 28 Sep 20202 Oct 2020

Conference

ConferenceSOLARPACES 2020: 26th International Conference on Concentrating Solar Power and Chemical Energy Systems
CityFreiburg, Germany
Period28/09/202/10/20

NREL Publication Number

  • NREL/CP-5700-83282

Keywords

  • capacity factor
  • chemical elements
  • energy storage
  • solar power plants

Fingerprint

Dive into the research topics of 'System-Level Comparison of Sodium and Salt Systems in Support of the Gen3 Liquids Pathway: Paper No. 030007'. Together they form a unique fingerprint.

Cite this