Modelling and analysis of a distributed green hydrogen generation system integrating concentrating solar power with thermal energy storage

Neelesh Soni and K.S. Reddy

Renewable Energy, 2025, vol. 241, issue C

Abstract: The study proposes a decentralized green hydrogen generation facility to reduce excess storage and transportation costs across various Indian regions. The proposed system is modelled with capacities ranging from 5 MW to 20 MW, utilizing concentrating solar power (CSP) technology integrated with thermal energy storage (TES). An extensive techno-economic assessment is conducted, along with a numerical investigation of the TES system, which reveals that the TES charging is completed after 11.08 h, with a temperature of 375.4 °C. Average energy and exergy efficiencies during TES charging are observed to be 90.17 % and 36.16 %, respectively. After a 6-h discharging process, the TES temperature drops to 354.2 °C, with a melt fraction of 0.16. The maximum energy and exergy efficiencies at the end of discharging are found to be 41.4 % and 21.72 %, respectively. However, the system efficiency from incident solar energy to generator yield is 14.65 % with TES. An economic analysis compares system costs across different regions of varying solar DNI (kWh/m2/day) from 2.54 (Region-1) to 6.55 (Region 5). The Region-1 requires 88.51 % higher system investment than Region-5. The levelized costs of electricity and hydrogen in Region-5 are 43.20 % and 33.33 % inferior, respectively, compared to Region-1, exhibiting minimal variation across different plant capacities.

Keywords: Green hydrogen generation; Mathematical modelling; Parabolic trough collector; Thermal energy storage; Numerical analysis (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148124023425
Full text for ScienceDirect subscribers only

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:eee:renene:v:241:y:2025:i:c:s0960148124023425

DOI: 10.1016/j.renene.2024.122274

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().