All-Silicon Energy Storage (ASES)

Datas Medina, Alejandro and Martí Vega, Antonio and Cañizo Nadal, Carlos del and Luque López, Antonio (2015). All-Silicon Energy Storage (ASES). In: "31st European Photovoltaic Solar Energy Conference and Exhibition", 14/09/2015 - 18/09/2015, Hamburg, Germany. pp. 80-83.


Title: All-Silicon Energy Storage (ASES)
  • Datas Medina, Alejandro
  • Martí Vega, Antonio
  • Cañizo Nadal, Carlos del
  • Luque López, Antonio
Item Type: Presentation at Congress or Conference (Article)
Event Title: 31st European Photovoltaic Solar Energy Conference and Exhibition
Event Dates: 14/09/2015 - 18/09/2015
Event Location: Hamburg, Germany
Title of Book: 31st European Photovoltaic Solar Energy Conference and Exhibition
Date: 2015
Freetext Keywords: Thermophotovoltaics, storage, thermal energy storage, silicon, phase change material
Faculty: Instituto de Energía Solar (IES) (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Silicon is an ideal candidate to build massive energy storage solutions owing to its low cost (~$1.7/kg) and abundance on earth. In this work, we describe a novel concept for energy storage in which the energy is stored in the form of silicon's latent heat and converted to electricity upon demand by thermophotovoltaic (TPV) cells. This approach takes advantage of the extremely high latent heat (1.8 MJ/kg) and melting point (1410ºC) of silicon, and the low weight and silent operation of the TPV cells. The proposed solution has potential to provide total energy (heat plus electricity) storage densities approaching 1 MWh/m3, which is 12-15 times higher than that of lead-acid batteries, 2-5 times than that of Li-ion batteries and 10-20 times than that of the molten salt PCMs utilized in CSP systems. In the proposed system, 10-50% of the total energy could be delivered in the form of electricity, depending on the particular TPV cell characteristics, and the remaining energy is supplied as heat (e.g. hot water) which could be used in homes or factories.

Funding Projects

Madrid Regional GovernmentS2013/MAE-2780MADRID-PVUnspecifiedMateriales, dispositivos y tecnología para el desarrollo de la Industria fotovoltaica
Government of SpainENE2012- 37804-C02-01UnspecifiedUnspecifiedAplicación de estructuras cuánticas y otros nuevos conceptos a la mejora de la eficiencia de las células solares

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Item ID: 42126
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Deposited by: Memoria Investigacion
Deposited on: 10 Sep 2016 09:16
Last Modified: 10 Sep 2016 09:16
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