Dynamic Modelling and Techno-Economic Assessment of a Compressed Heat Energy Storage System: Application in a 26-MW Wind Farm in Spain

Violeta Sánchez-Canales, Jorge Payá, José M. Corberán and Abdelrahman H. Hassan
Additional contact information
Violeta Sánchez-Canales: Instituto Universitario de Investigación en Ingeniería Energética, Universitat Politècnica de València, 46022 Valencia, Spain
Jorge Payá: Instituto Universitario de Investigación en Ingeniería Energética, Universitat Politècnica de València, 46022 Valencia, Spain
José M. Corberán: Instituto Universitario de Investigación en Ingeniería Energética, Universitat Politècnica de València, 46022 Valencia, Spain
Abdelrahman H. Hassan: Instituto Universitario de Investigación en Ingeniería Energética, Universitat Politècnica de València, 46022 Valencia, Spain

Energies, 2020, vol. 13, issue 18, 1-18

Abstract: One of the main challenges for a further integration of renewable energy sources in the electricity grid is the development of large-scale energy storage systems to overcome their intermittency. This paper presents the concept named CHEST (Compressed Heat Energy STorage), in which the excess electricity is employed to increase the temperature of a heat source by means of a high-temperature heat pump. This heat is stored in a combination of latent and sensible heat storage systems. Later, the stored heat is used to drive an organic Rankine cycle, and hereby to produce electricity when needed. A novel application of this storage system is presented by exploring its potential integration in the Spanish technical constraints electricity market. A detailed dynamic model of the proposed CHEST system was developed and applied to a case study of a 26-MW wind power plant in Spain. Different capacities of the storage system were assessed for the case under study. The results show that roundtrip efficiencies above 90% can be achieved in all the simulated scenarios and that the CHEST system can provide from 1% to 20% of the total energy contribution of the power plant, depending on its size. The CHEST concept could be economically feasible if its capital expenditure (CAPEX) ranges between 200 and 650 k€/MW.

Keywords: thermal energy storage; high-temperature heat pump; organic Rankine cycle; transient modelling (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/18/4739/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/18/4739/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:18:p:4739-:d:412117

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().