Techno-economic analysis of solar PV power-to-heat-to-power storage and trigeneration in the residential sector

Datas Medina, Alejandro and Ramos Cabal, Alba and Cañizo Nadal, Carlos del (2019). Techno-economic analysis of solar PV power-to-heat-to-power storage and trigeneration in the residential sector. "Applied Energy", v. 256 ; pp. 1-5. ISSN 0306-2619. https://doi.org/10.1016/j.apenergy.2019.113935.

Description

Title: Techno-economic analysis of solar PV power-to-heat-to-power storage and trigeneration in the residential sector
Author/s:
  • Datas Medina, Alejandro
  • Ramos Cabal, Alba
  • Cañizo Nadal, Carlos del
Item Type: Article
Título de Revista/Publicación: Applied Energy
Date: 15 December 2019
ISSN: 0306-2619
Volume: 256
Subjects:
Freetext Keywords: PHPS; CCHP; TES; trigeneration; cogeneration; energy storage; heat; thermal; photovoltaics; solar; self-consumption; thermophotovoltaics; Stirling; ultra-high temperature
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

This article assesses whether it is profitable to store solar PV electricity in the form of heat and convert it back to electricity on demand. The impact of a number of technical and economic parameters on the profitability of a self-consumption residential system located in Madrid is assessed. The proposed solution comprises two kinds of heat stores: a low- or medium-grade heat store for domestic hot water and space heating, and a high-grade heat store for combined heat and power generation. Two cases are considered where the energy that is wasted during the conversion of heat into electricity is employed to satisfy either the heating demand, or both heating and cooling demands by using a thermally-driven heat pump. We compare these solutions against a reference case that relies on the consumption of grid electricity and natural gas and uses an electrically-driven heat pump for cooling. The results show that, under relatively favourable conditions, the proposed solution that uses an electrically-driven heat pump could provide electricity savings in the range of 70-90% with a payback period of 12-15 years, plus an additional 10-20% reduction in the fuel consumption. Shorter payback periods, lower than 10 years, could be attained by using a highly efficient thermally driven heat pump, at the expense of increasing the fuel consumption and the greenhouse gas emissions. Hybridising this solution with solar thermal heating could enable significant savings on the global emissions, whilst keeping a high amount of savings in grid electricity (> 70 %) and a reasonably short payback period (< 12 years).

Funding Projects

TypeCodeAcronymLeaderTitle
Madrid Regional GovernmentP2018/EMT-4308MADRID-PV2-CMUnspecifiedMateriales, Dispositivos y Tecnologías para el Desarrollo de la Industria Fotovoltaica
Government of SpainENE2015-72843-EXPTORMESUnspecifiedAlmacenamiento de energía en aleados de silicio fundido
Horizon 2020737054AMADEUSUNIVERSIDAD POLITECNICA DE MADRIDNext GenerAtion MateriAls and Solid State DevicEs for Ultra High Temperature Energy Storage and Conversion

More information

Item ID: 63879
DC Identifier: http://oa.upm.es/63879/
OAI Identifier: oai:oa.upm.es:63879
DOI: 10.1016/j.apenergy.2019.113935
Official URL: https://www.sciencedirect.com/science/article/pii/S0306261919316228
Deposited by: Memoria Investigacion
Deposited on: 02 Dec 2020 15:01
Last Modified: 02 Dec 2020 15:01
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