CSPonD: Concentrated Solar Power on Demand


Solar mirror, Binary actuation, Active optics, TrSolar thermal power, Energy storage, Ternary eutectic salt, Nanoparticles, Salt bath, Nitrate, Chloride and Carbonateacking


Solar thermal power generators

  • Alternative energy storage
  • Elimination of solar tower
  • Significant thermal energy loss of conventional solar boilers
  • High capital costs in building heavy solar boilers


The system is designed to absorb concentrated solar radiation in a molten eutectic salt. The liquid salt is contained in an insulated crucible with an aperture for entry of concentrated light. The salt serves as a volumetric energy absorber, an energy storage medium, a high temperature heat transfer fluid, and a suspending fluid for absorptive nanoparticles. The system efficiently absorbs solar radiation through the volume of molten salt and retains the energy for gradual release into a heat exchange system. The typical operating temperature of the device is 600C to 1000C. The device can be combined with solar collection apparatus and heat exchanging mechanisms.

  • Increase of 30-40% in efficiency over current technologies
  • Energy Storage
  • Low capital costs


Intellectual Property:
  • Case 13251: PCT Patent application PCT/US2010/049474 filed on September 20, 2010
  • Case 14322: US Patent application 61/356882 filed on June 21, 2010


A.H. Slocum, D.S. Codd, J. Buongiorno, C. Forsberg, T. McKrell, J.C. Nave, C. Papanicolas, A. Ghobeity, C. Noone, S. Passerini, F. Rojas, and A. Mitsos, 2010. “Concentrated solar power on demand.” Solar Energy, submitted for publication.

MIT News

Related Cases:

13251: Solar Power Tower with Direct Absorption of Solar Radiation in a Salt Bath with Nanoparticles

13283: Device for Tactile Sensing and Surface Metrology

13728: Concentrating Solar Power Receiver, Storage Tank, and the Salt Bath with Nanoparticles

14620: Site Selection for Hillside Central Receiver Solar Thermal Plants

Last revised: March 1, 2012

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