scholarly journals An efficient biomass and renewable power-to-gas process integrating electrical heating gasification

2021 ◽  
pp. 101735
Author(s):  
Guohui Song ◽  
Shanhui Zhao ◽  
Xiang Wang ◽  
Xiaobo Cui ◽  
Hongyan Wang ◽  
...  
Keyword(s):  
Electrical Heating ◽  
Renewable Power ◽  
Power To Gas

scholarly journals Renewable Power‐to‐Gas: A Technical and Economic Evaluation of Three Demo Sites Within the STORE&GO Project

2021 ◽  
Author(s):  
Ruth Schlautmann ◽  
Hans Böhm ◽  
Andreas Zauner ◽  
Friedemann Mörs ◽  
Robert Tichler ◽  
...  
Keyword(s):  
Economic Evaluation ◽  
Renewable Power ◽  
Power To Gas

scholarly journals Multi-Criteria Examination of Power-to-Gas Pathways under Stochastic Preferences

Energies ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 3151 ◽  
Author(s):  
Sean Walker ◽  
Suadd Al-Zakwani ◽  
Azadeh Maroufmashat ◽  
Michael Fowler ◽  
Ali Elkamel
Keyword(s):  
Peak Power ◽  
Multiple Criteria ◽  
Analysis Tool ◽  
Analytic Hierarchy ◽  
Policy Makers ◽  
Renewable Power ◽  
Criteria Weights ◽  
Power To Gas ◽  
Renewable Energy Generation ◽  
Hierarchy Process

Power-to-gas is an energy storage and vector technology which can utilize off-peak power, assist in the integration of renewable power and provide needed fuel for industry and transportation. Further, power-to-gas is a useful technology for balancing surplus baseload and renewable energy generation with demand. There are numerous applications of power-to-gas in Europe, where renewable power is used to generate hydrogen for numerous applications. Examining each of these power-to-gas pathways across quantitative and qualitative criteria, this paper utilizes the stochastic fuzzy analytic hierarchy process to determine criteria weights. These weights are then fed to a multiple criteria decision analysis tool to determine the viability of each pathway for investors and policy makers. A sensitivity analysis is carried out by reprioritizing the criteria and re-evaluating the multiple criteria analysis. The two pathways that score highest under multiple criteria rankings are power-to-gas to mobility-fuel and power-to-gas-to-power, due to their established technologies, lower costs and environmental performance. By extension, both of these power-to-gas pathways are the most appropriate ways for this technology to be implemented, due to their combination of public familiarity, emissions reductions, and developed, available technologies.

scholarly journals Optimal design of a coproduction system of electricity and hydrogen to manage imbalances resulting from forecast errors in photovoltaic outputs

2018 ◽  
Vol 64 ◽  
pp. 06009
Author(s):  
Matsuhashi Ryuji ◽  
Yoshioka Tsuyoshi
Keyword(s):  
Power Systems ◽  
Mixed Integer ◽  
Renewable Portfolio Standard ◽  
Forecast Errors ◽  
Photovoltaic Systems ◽  
Power Sources ◽  
Renewable Power ◽  
High Tariff ◽  
Power To Gas ◽  
Feed In Tariff

Renewable power sources are increasing mainly because of economic institutions such as renewable portfolio standard or feed-in tariff program. In Japan, the feed-in tariff program triggered explosive growth of photovoltaic systems because of its high tariff level. Although mass introduction of photovoltaic systems certainly contributes to reduce CO2 emissions, it causes instability issues in power systems. One of the most serious issues is management of imbalances resulting from forecast errors in photovoltaic outputs. On the other hand, power-to-gas technologies are attracting our attention, since these technologies could convert surplus of renewable energy to other energy carriers. In particular, hydrogen is efficiently produced from electricity using electrolysis. We could use hydrogen to manage the imbalances by the system, in which uncertain parts of photovoltaic outputs are used to produce hydrogen. In this paper, we propose a coproduction system of electricity and hydrogen to reduce the imbalances. For this purpose, a novel mathematical model is developed, in which we determine the structure of the coproduction system with a mixed integer linear programming method. Evaluated results indicated that the coproduction system is economical under appropriate capacity of the electrolyzer.

scholarly journals Renewable Power-to-Gas: A technological and economic review

2016 ◽  
Vol 85 ◽  
pp. 1371-1390 ◽  
Author(s):  
Manuel Götz ◽  
Jonathan Lefebvre ◽  
Friedemann Mörs ◽  
Amy McDaniel Koch ◽  
Frank Graf ◽  
...  
Keyword(s):  
Renewable Power ◽  
Power To Gas

Renewable power-to-gas by direct catalytic methanation of biogas

2020 ◽  
Vol 162 ◽  
pp. 948-959
Author(s):  
F. Gutiérrez-Martín ◽  
L.M. Rodríguez-Antón ◽  
M. Legrand
Keyword(s):  
Renewable Power ◽  
Power To Gas

scholarly journals An Overview of the Portuguese Energy Sector and Perspectives for Power-to-Gas Implementation

Energies ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 3259 ◽  
Author(s):  
Carlos Miguel ◽  
Adélio Mendes ◽  
Luís Madeira
Keyword(s):  
Renewable Energy ◽  
Power Production ◽  
Energy Sector ◽  
Research Articles ◽  
Renewable Electricity ◽  
Promising Alternative ◽  
Renewable Power ◽  
Opposite Trend ◽  
Lack Of Information ◽  
Power To Gas

Energy policies established in 2005 have made Portugal one of the top renewable power producers in Europe, in relative terms. Indeed, the country energy dependence decreased since 2005, although remaining above EU-19 and EU-28 countries in 2015 (77.4% vs. 62.4% vs. 54.0%, respectively). Data collected from governmental, statistical, and companies’ reports and research articles shows that renewables and natural gas assumed a growing importance in the Portuguese energy mix along time, while oil followed an opposite trend. Recently, the country remarkably achieved a full 70-h period in which the mainland power consumed relied exclusively on renewable electricity and has several moments where power production exceeds demand. Currently, the main option for storing those surpluses relies on pumped hydro storage plants or exportation, while other storage alternatives, like Power-to-Gas (PtG), are not under deep debate, eventually due to a lack of information and awareness. Hence, this work aims to provide an overview of the Portuguese energy sector in the 2005–2015 decade, highlighting the country’s effort towards renewable energy deployment that, together with geographic advantages, upholds PtG as a promising alternative for storing the country’s renewable electricity surpluses.

Comparison of Gas Turbines and Power-to-Gas Plants for Improved Wind Park Energy Dispatchability

2014 ◽  
Author(s):  
Giulio Guandalini ◽  
Stefano Campanari ◽  
Matteo C. Romano
Keyword(s):  
Hydrogen Storage ◽  
Wind Power ◽  
Gas Turbines ◽  
Energy Demand ◽  
Power Plants ◽  
New Technologies ◽  
Economic Feasibility ◽  
Power Modulation ◽  
Renewable Power ◽  
Power To Gas

According to IEA projections for the year 2050, up to 50% of the energy demand in the next decades could be covered by non-programmable sources (e.g. wind and solar power), which can significantly affect power quality, grid stability and power generation planning. Moreover, in several countries a fast growth of installed power based on renewables could not be followed by a simultaneous growth of local grid capacities, leading to increase probability of load shedding events, reducing the productivity of renewable power plants. In this perspective, an important role will be played by technologies which allow improving the dispatchability of non-programmable renewable power plants like wind parks. While a classical approach to grid power modulation relies on gas turbines, an increasing attention is given nowadays to new technologies, not based on fossil fuels, specially focusing on the adoption of energy storage systems. Among these options, one of the most promising relies on the “power-to-gas” concept, which consists in producing hydrogen by water electrolysis and injecting it into the natural gas infrastructure, as currently considered by some research projects and demonstration-scale plants. With respect to hydrogen storage technologies, this option limits the need of a local hydrogen storage reservoir, reducing the investment costs, improving the renewable fraction of gaseous fuels and allowing to oversize the renewable installed power with respect to the grid capacity. In this work a preliminary investigation of the economic feasibility of this system is carried out, starting from the example of the forecasted scenario of wind power evolution in some EU countries. A statistical approach is applied in order to evaluate the error in energy production forecasts. As results, a preliminary sizing of the whole system is proposed, estimating the economic outlook, the possible annual energy and emission balances and the influence of the uncertainty in declared production from wind power plants. A comparison with power modulation based on gas turbines is set up in order to evaluate which are the parameters that influence the economic viability of both solutions, evidencing the different operational criteria of the two systems and their impact on the dispatchability of energy.

Sign in / Sign up

Export Citation Format

Share Document