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Title: Power-To-Gas concept for integration of increased photovoltaic generation into the distribution
Authors : Park, Chan
Bigler, Felix
Korba, Petr
Proceedings: Energy Procedia
Volume(Issue) : 99
Pages : 411
Pages to: 417
Conference details: 10th International Renewable Energy Storage Conference, IRES 2016, 15-17 March 2016, Düsseldorf, Germany
Editors of the parent work: Droege, Peter
Publisher / Ed. Institution : Elsevier
Issue Date: 2016
License (according to publishing contract) : CC BY-NC-ND 4.0: Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International
Type of review: Peer review (Publication)
Language : German
Subjects : Excess energy; Power-To-Gas; Distribution grid; Integration of photovaltaics
Subject (DDC) : 333.7: Land, recreational areas and energy
621.04: Energy engineering
Abstract: According to the Energy Strategy 2050 set forth by the Swiss federal government, Photovoltaic (PV) energy shall make up one fifth of the nation’s total energy production in 2050. Such a drastic expansion rate of PV and the resulting excess energy thereof can lead to so-called reverse power flow in the low voltage (LV) grid as demonstrated in previous studies. Power-to-Gas (PtG) represents a suitable storage solution to resolve the situation by absorbing the excess PV energy.  This paper presents a qualitative and quantitative feasibility analysis of the PtG technology in the future Swiss LV grid. For this purpose, PtG is integrated in simulation into the grid for absorbing the excess PV energy while producing hydrogen. This hydrogen is assumed to be sold in the mobility sector.  Three different operational scenarios are established with respect to the input energy source to the PtG plant, including the excess PV energy, curtailed PV excess energy and PV excess energy plus the energy from the grid.  Summing up the results, it can be concluded that the PtG plant is still far from economically viable even though significant improvement can be accomplished to the hydrogen production costs by adopting the active PV curtailment and by purchasing additional energy from the grid. The future study to be undertaken by the authors, with respect to economical viability of the PtG, will include other sources of value, including production of methane as main product, production of oxygen and heat as by-products, and provision of services such as biogas upgrading, frequency regulation and voltage.
Departement: School of Engineering
Organisational Unit: Institute of Energy Systems and Fluid Engineering (IEFE)
Publication type: Conference Paper
DOI : 10.1016/j.egypro.2016.10.131
ISSN: 1876-6102
Appears in Collections:Publikationen School of Engineering

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