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Energies
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Power-to-Gas Energy Storage Technologies
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Power-to-Gas Energy Storage Technologies

A special issue of Energies (ISSN 1996-1073).

Deadline for manuscript submissions: closed (23 January 2019) | Viewed by 21444

Special Issue Editor

Prof. Dr. Michael Fowler

grade E-Mail Website
Guest Editor
Department of Chemical Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada
Interests: electrochemical power sources; PEM fuel cell degradation; Li-ion battery modeling; hybrid vehicle powertrain; green energy hubs; hydrogen economy
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Power-to-gas is a promising option for storing distributed and nuclear energy that can be novel concept for the transition to increased renewable content in current fuels with an ultimate gold of a future fossil free energy system including power, transportation and thermal energy needs. In this edition different "pathways" of power to gas will be considered including Power to Hydrogen, Power to Natural Gas End-users, Power to Renewable Content in Petroleum Fuel, Power to Power, Seasonal Energy Storage to Electricity, Power to Zero Emission Transportation, Power to Seasonal Storage for Transportation, Power to Micro grid, Power to Renewable Natural Gas (RNG) to Pipeline ("Methanation"), and Power to Renewable Natural Gas (RNG) to Seasonal Storage.

Prof. Dr. Michael Fowler
Guest Editor

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Keywords

  • power to gas

  • electrolysis

  • alkaline electrolysis

  • PEM electrolysis

  • methanation

  • hydrogen economy

  • hydrogen generation

  • fuel cell vehicles

  • fuel cell

  • hydrogen storage

  • hydrogen underground storage

  • hydrogen energy system storage

  • hydrogen enriched natural gas

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Published Papers (3 papers)

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Research

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15 pages, 5054 KiB  
Article
Design, Operation, Modeling and Grid Integration of Power-to-Gas Bioelectrochemical Systems
by Raúl Santiago Muñoz-Aguilar, Daniele Molognoni, Pau Bosch-Jimenez, Eduard Borràs, Mónica Della Pirriera and Álvaro Luna
Energies 2018, 11(8), 1947; https://doi.org/10.3390/en11081947 - 26 Jul 2018
Cited by 16 | Viewed by 3512
Abstract
This paper deals with the design, operation, modeling, and grid integration of bioelectrochemical systems (BES) for power-to-gas application, through an electromethanogenesis process. The paper objective is to show that BES-based power-to-gas energy storage is feasible on a large scale, showing a first approximation [...] Read more.
This paper deals with the design, operation, modeling, and grid integration of bioelectrochemical systems (BES) for power-to-gas application, through an electromethanogenesis process. The paper objective is to show that BES-based power-to-gas energy storage is feasible on a large scale, showing a first approximation that goes from the BES design and operation to the electrical grid integration. It is the first study attempting to cover all aspects of a BES-based power-to-gas technology, on authors’ knowledge. Designed BES reactors were based on a modular architecture, suitable for a future scaling-up. They were operated in steady state for eight months, and continuously monitored in terms of power consumption, water treatment, and biomethane production, in order to obtain data for the following modeling activity. A black box linear model of the BES was computed by using least-square methods, and validated through comparison with collected experimental data. Afterwards, a BES stack was simulated through several series and parallel connections of reactors, in order to obtain higher power consumption and test the grid integration of a real application system. The renewable energy surplus and energy price variability were evaluated for the grid integration of the BES stack. The BES stack was then simulated as energy storage system during low energy price periods, and tested experimentally with a real time system. Full article
(This article belongs to the Special Issue Power-to-Gas Energy Storage Technologies)
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17 pages, 4831 KiB  
Article
Development of Honeycomb Methanation Catalyst and Its Application in Power to Gas Systems
by Philipp Biegger, Florian Kirchbacher, Ana Roza Medved, Martin Miltner, Markus Lehner and Michael Harasek
Energies 2018, 11(7), 1679; https://doi.org/10.3390/en11071679 - 27 Jun 2018
Cited by 23 | Viewed by 5629
Abstract
Fluctuating energy sources require enhanced energy storage demand, in order to ensure safe energy supply. Power to gas offers a promising pathway for energy storage in existing natural gas infrastructure, if valid regulations are met. To improve interaction between energy supply and storage, [...] Read more.
Fluctuating energy sources require enhanced energy storage demand, in order to ensure safe energy supply. Power to gas offers a promising pathway for energy storage in existing natural gas infrastructure, if valid regulations are met. To improve interaction between energy supply and storage, a flexible power to gas process is necessary. An innovative multibed methanation concept, based on ceramic honeycomb catalysts combined with polyimide membrane gas upgrading, is presented in this study. Cordierite monoliths are coated with γ-Al2O3 and catalytically active nickel, and used in a two-stage methanation process at different operation conditions (p = 6–14 bar, GHSV = 3000–6000 h−1). To fulfill the requirements of the Austrian natural gas network, the product gas must achieve a CH4 content of ≥96 vol %. Hence, CH4 rich gas from methanation is fed to the subsequent gas upgrading unit, to separate remaining H2 and CO2. In the present study, two different membrane modules were investigated. The results of methanation and gas separation clearly indicate the high potential of the presented process. At preferred operation conditions, target concentration of 96 vol % CH4 can be achieved. Full article
(This article belongs to the Special Issue Power-to-Gas Energy Storage Technologies)
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Review

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52 pages, 1104 KiB  
Review
A Review of Projected Power-to-Gas Deployment Scenarios
by Valerie Eveloy and Tesfaldet Gebreegziabher
Energies 2018, 11(7), 1824; https://doi.org/10.3390/en11071824 - 12 Jul 2018
Cited by 96 | Viewed by 11381
Abstract
Technical, economic and environmental assessments of projected power-to-gas (PtG) deployment scenarios at distributed- to national-scale are reviewed, as well as their extensions to nuclear-assisted renewable hydrogen. Their collective research trends, outcomes, challenges and limitations are highlighted, leading to suggested future work areas. These [...] Read more.
Technical, economic and environmental assessments of projected power-to-gas (PtG) deployment scenarios at distributed- to national-scale are reviewed, as well as their extensions to nuclear-assisted renewable hydrogen. Their collective research trends, outcomes, challenges and limitations are highlighted, leading to suggested future work areas. These studies have focused on the conversion of excess wind and solar photovoltaic electricity in European-based energy systems using low-temperature electrolysis technologies. Synthetic natural gas, either solely or with hydrogen, has been the most frequent PtG product. However, the spectrum of possible deployment scenarios has been incompletely explored to date, in terms of geographical/sectorial application environment, electricity generation technology, and PtG processes, products and their end-uses to meet a given energy system demand portfolio. Suggested areas of focus include PtG deployment scenarios: (i) incorporating concentrated solar- and/or hybrid renewable generation technologies; (ii) for energy systems facing high cooling and/or water desalination/treatment demands; (iii) employing high-temperature and/or hybrid hydrogen production processes; and (iv) involving PtG material/energy integrations with other installations/sectors. In terms of PtG deployment simulation, suggested areas include the use of dynamic and load/utilization factor-dependent performance characteristics, dynamic commodity prices, more systematic comparisons between power-to-what potential deployment options and between product end-uses, more holistic performance criteria, and formal optimizations. Full article
(This article belongs to the Special Issue Power-to-Gas Energy Storage Technologies)
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