Enhancing the Levelized Cost of Hydrogen with the Usage of the Byproduct Oxygen in a Wastewater Treatment Plant

In order to harmonizFranziska Hönige the supply and demand of green energy, new future-proof technologies are needed. Here, hydrogen plays a key role. Within the current framework conditions, the production of green hydrogen is not yet economically viable. The use of the oxygen produced and the poss...

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Main Authors: Franziska Hönig, Ganesh Deepak Rupakula, Diana Duque-Gonzalez, Matthias Ebert, Ulrich Blum
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/16/12/4829
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author Franziska Hönig
Ganesh Deepak Rupakula
Diana Duque-Gonzalez
Matthias Ebert
Ulrich Blum
author_facet Franziska Hönig
Ganesh Deepak Rupakula
Diana Duque-Gonzalez
Matthias Ebert
Ulrich Blum
author_sort Franziska Hönig
collection DOAJ
description In order to harmonizFranziska Hönige the supply and demand of green energy, new future-proof technologies are needed. Here, hydrogen plays a key role. Within the current framework conditions, the production of green hydrogen is not yet economically viable. The use of the oxygen produced and the possible increase in efficiency associated with it mostly remain unconsidered. The aim is to demonstrate that the economic efficiency of a power-to-gas (PtG) project can be increased by using the byproduct oxygen. In this research project, a water electrolyzer connected to grid is powered to supply hydrogen to a hydrogen refueling station. By utilizing the byproduct oxygen from water electrolysis for a wastewater treatment plant (WWTP), it is shown that the net present value (NPV) of the project can be improved by up to 13% compared to the initial scenario. If a photovoltaic (PV) system is used in addition to grid electricity for higher green hydrogen production, the NPV can be further improved by up to 58%. The levelized cost of hydrogen (LCOH) is calculated for different scenarios with and without oxygen configuration. A sensitivity analysis is then performed to find important parameters.
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spelling doaj.art-8da00e8c62fa4ac19dc8b82adb57990c2023-11-18T10:14:42ZengMDPI AGEnergies1996-10732023-06-011612482910.3390/en16124829Enhancing the Levelized Cost of Hydrogen with the Usage of the Byproduct Oxygen in a Wastewater Treatment PlantFranziska Hönig0Ganesh Deepak Rupakula1Diana Duque-Gonzalez2Matthias Ebert3Ulrich Blum4Fraunhofer Center for Silicon Photovoltaics CSP, Otto-Eißfeldt-Strasse 12, 06120 Halle, GermanyFraunhofer Center for Silicon Photovoltaics CSP, Otto-Eißfeldt-Strasse 12, 06120 Halle, GermanyH2 POWERCELL GmbH, Rothenberger Strasse 47, 48493 Wettringen, GermanyFraunhofer Center for Silicon Photovoltaics CSP, Otto-Eißfeldt-Strasse 12, 06120 Halle, GermanyITEL Institute for Technologies and Economics of Lithium, Leipziger Strasse 70, 06108 Halle, GermanyIn order to harmonizFranziska Hönige the supply and demand of green energy, new future-proof technologies are needed. Here, hydrogen plays a key role. Within the current framework conditions, the production of green hydrogen is not yet economically viable. The use of the oxygen produced and the possible increase in efficiency associated with it mostly remain unconsidered. The aim is to demonstrate that the economic efficiency of a power-to-gas (PtG) project can be increased by using the byproduct oxygen. In this research project, a water electrolyzer connected to grid is powered to supply hydrogen to a hydrogen refueling station. By utilizing the byproduct oxygen from water electrolysis for a wastewater treatment plant (WWTP), it is shown that the net present value (NPV) of the project can be improved by up to 13% compared to the initial scenario. If a photovoltaic (PV) system is used in addition to grid electricity for higher green hydrogen production, the NPV can be further improved by up to 58%. The levelized cost of hydrogen (LCOH) is calculated for different scenarios with and without oxygen configuration. A sensitivity analysis is then performed to find important parameters.https://www.mdpi.com/1996-1073/16/12/4829alkaline water electrolysishydrogenbyproduct oxygenwastewater treatment plantlevelized cost of hydrogenpower-to-gas
spellingShingle Franziska Hönig
Ganesh Deepak Rupakula
Diana Duque-Gonzalez
Matthias Ebert
Ulrich Blum
Enhancing the Levelized Cost of Hydrogen with the Usage of the Byproduct Oxygen in a Wastewater Treatment Plant
Energies
alkaline water electrolysis
hydrogen
byproduct oxygen
wastewater treatment plant
levelized cost of hydrogen
power-to-gas
title Enhancing the Levelized Cost of Hydrogen with the Usage of the Byproduct Oxygen in a Wastewater Treatment Plant
title_full Enhancing the Levelized Cost of Hydrogen with the Usage of the Byproduct Oxygen in a Wastewater Treatment Plant
title_fullStr Enhancing the Levelized Cost of Hydrogen with the Usage of the Byproduct Oxygen in a Wastewater Treatment Plant
title_full_unstemmed Enhancing the Levelized Cost of Hydrogen with the Usage of the Byproduct Oxygen in a Wastewater Treatment Plant
title_short Enhancing the Levelized Cost of Hydrogen with the Usage of the Byproduct Oxygen in a Wastewater Treatment Plant
title_sort enhancing the levelized cost of hydrogen with the usage of the byproduct oxygen in a wastewater treatment plant
topic alkaline water electrolysis
hydrogen
byproduct oxygen
wastewater treatment plant
levelized cost of hydrogen
power-to-gas
url https://www.mdpi.com/1996-1073/16/12/4829
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