Techno-economic analysis of green hydrogen production, storage, and waste heat recovery plant in the context of Nepal

Bishwash Paneru*, Anup Paudel, Biplov Paneru, Vikram Alexander, D. P. Mainali, Sameep Karki, Seemant Karki, Sarthak Bikram Thapa, Khem Narayan Poudyal, Ramhari Poudyal

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Alkaline water electrolysis (AWE) operated by surplus electricity is suitable for producing green hydrogen in Nepal. Simulation models are built using DWSIM software for AWE, multistage compression, and the Organic Rankine Cycle (ORC). The AWE system's Capital Expenditure (CAPEX) is determined to be $47 million and Operational Expenditure (OPEX) of $7.65 million/year. The storage system, including the multistage compression system and Type IV cylinders, has a CAPEX of $52 million and an OPEX of $17 million/year. The ORC has a CAPEX of $500,000 and an OPEX of $200,000/year. The thermal power generated from AWE and multistage compression can be converted to electricity by the ORC and supplied to the AWE system. This process decreases the Levelized Cost of Hydrogen (LCOH) from $3.5141/kg over 5 years to $3.4725/kg over 25 years. The techno-economic analysis performed confirms the feasibility of implementing these plants in Nepal.

Original languageEnglish
Pages (from-to)892-905
Number of pages14
JournalInternational Journal of Hydrogen Energy
Volume77
DOIs
Publication statusPublished - 2024

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • Alkaline water electrolysis
  • Multistage compression
  • Organic rankine cycle
  • Surplus electricity
  • Type IV cylinder
  • Waste heat recovery

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