Considering environmental impacts of energy storage technologies: A life cycle assessment of power-to-gas business models

Tschiggerl, Karin; Sledz, Christian; Topić, Milan

doi:10.1016/j.energy.2018.07.105

Cited by 40 publications

(22 citation statements)

References 12 publications

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“…It is worth noting that hydrogen dominates the operating costs. These results are in the range provided by Peters et al, [124] and Panzone et al [125] Tschiggerl et al [126] has recently evaluated the environmental impacts of several power-to-gas business models. Results of the impact assessment indicate that the source of energy is the key aspect for the environmental performance.…”

Section: Methanesupporting

confidence: 58%

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CO₂ Utilization Technologies in Europe: A Short Review

Chauvy

Weireld

2020

Energy Tech

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Carbon dioxide utilization is increasingly attracting interest. CO2 utilization involves a multitude of processes and chemical reactions. In this context, the goal of this review is to analyze the techno‐economic feasibility, sustainability, and social opportunities of CO2 utilization, as a possible contribution to CO2 mitigation in Europe. Industries and the most recent European projects related to carbon capture and utilization are also discussed, illustrating Europe's performance dynamics in science, research, and innovation in this field. The latest developments in CO2 utilization are thus reviewed, including chemicals, mineral carbonation, and biological uses. This study examines a few CO2‐based pathways at high level of maturity covering a wide range of applications, and discusses their current technical feasibility, economic viability, sustainability, and social aspects. They are then evaluated using several indicators to provide a figure of merit, where qualitative results are intended. The mapping and ranking of CO2 utilization pathways may provide a valuable means in prioritizing support and funding to facilitate the development of large‐scale CO2 utilization projects in Europe. Finally, key challenges and opportunities are discussed. The review shows that CO2 utilization may not be a complete solution for Europe, but will support climate change objectives, circular economy, and resource and energy security.

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Section: Methanesupporting

confidence: 58%

“…Tschiggerl et al [ 126 ] has recently evaluated the environmental impacts of several power‐to‐gas business models. Results of the impact assessment indicate that the source of energy is the key aspect for the environmental performance.…”

Section: Techno‐economic Feasibility Sustainability and Social Perception Of Co2 Utilizationmentioning

confidence: 99%

CO₂ Utilization Technologies in Europe: A Short Review

Chauvy

Weireld

2020

Energy Tech

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“…The main advantages of the PtSNG option are [6][7][8][9][10]: (i) the use of existing infrastructure, (ii) high energy density (methane has >1000 kWh/m 3 while hydrogen has 270 kWh/m 3 [7]) and the less stringent safety constraints, and (iii) long-term and large-scale storage. The main disadvantages of the PtSNG technology are a relatively low efficiency and high investment management costs, also due to the limited operating hours of the plants [3,10,11].…”

Section: Background and Scopementioning

confidence: 99%

“…Because of the fluctuating behavior of the input energy source, the nominal efficiencies are not sufficient to evaluate the effectiveness of the plant, but it is necessary to evaluate the annual performance [10]. This is defined as the ratio of usable system energy output to overall system energy input (electricity and possibly heat) [10,11]. Therefore, the annual efficiencies of the energy conversion units and the annual overall efficiency are calculated as the nominal efficiencies, by replacing the power with the energy (electric or chemical) consumed or generated in 1 year of operation.…”

Section: Performance Parametersmentioning

confidence: 99%

SNG Generation via Power to Gas Technology: Plant Design and Annual Performance Assessment

et al. 2020

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Power to gas (PtG) is an emerging technology that allows to overcome the issues due to the increasingly widespread use of intermittent renewable energy sources (IRES). Via water electrolysis, power surplus on the electric grid is converted into hydrogen or into synthetic natural gas (SNG) that can be directly injected in the natural gas network for long-term energy storage. The core units of the Power to synthetic natural gas (PtSNG) plant are the electrolyzer and the methanation reactors where the renewable electrolytic hydrogen is converted to synthetic natural gas by adding carbon dioxide. A technical issue of the PtSNG plant is the different dynamics of the electrolysis unit and the methanation unit. The use of a hydrogen storage system can help to decouple these two subsystems and to manage the methanation unit for assuring long operation time and reducing the number of shutdowns. The purpose of this paper is to evaluate the energy storage potential and the technical feasibility of the PtSNG concept to store intermittent renewable sources. Therefore, different plant sizes (1, 3, and 6 MW) have been defined and investigated by varying the ratio between the renewable electric energy sent to the plant and the total electric energy generated by the renewable energy source (RES) facility based on a 12 MW wind farm. The analysis has been carried out by developing a thermochemical and electrochemical model and a dynamic model. The first allows to predict the plant performance in steady state. The second allows to forecast the annual performance and the operation time of the plant by implementing the control strategy of the storage unit. The annual overall efficiencies are in the range of 42–44% low heating value (LHV basis). The plant load factor, i.e., the ratio between the annual chemical energy of the produced SNG and the plant capacity, results equal to 60.0%, 46.5%, and 35.4% for 1, 3, and 6 MW PtSNG sizes, respectively.

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“…Knowledge on how shipping technologies affect human health has been brought into focus in recent years, 32 but assessments of health impacts from the production and use of electro-fuels are not commonly available in the scientic literature with only few studies performed. [53][54][55][56] Some studies are available which quanties environmental impacts from use of electro-fuels in the transport sector. [57][58][59][60][61] However, these studies focus on road vehicles and no studies have been published assessing electro-fuels used in shipping from a life cycle perspective.…”

Section: Introductionmentioning

confidence: 99%

The environmental performance of a fossil-free ship propulsion system with onboard carbon capture – a life cycle assessment of the HyMethShip concept

Malmgren

Brynolf

Fridell

et al. 2021

Sustainable Energy Fuels

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Considering environmental impacts of energy storage technologies: A life cycle assessment of power-to-gas business models

Cited by 40 publications

References 12 publications

CO₂ Utilization Technologies in Europe: A Short Review

CO₂ Utilization Technologies in Europe: A Short Review

SNG Generation via Power to Gas Technology: Plant Design and Annual Performance Assessment

The environmental performance of a fossil-free ship propulsion system with onboard carbon capture – a life cycle assessment of the HyMethShip concept

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Considering environmental impacts of energy storage technologies: A life cycle assessment of power-to-gas business models

Cited by 40 publications

References 12 publications

CO2 Utilization Technologies in Europe: A Short Review

CO2 Utilization Technologies in Europe: A Short Review

SNG Generation via Power to Gas Technology: Plant Design and Annual Performance Assessment

The environmental performance of a fossil-free ship propulsion system with onboard carbon capture – a life cycle assessment of the HyMethShip concept

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CO₂ Utilization Technologies in Europe: A Short Review

CO₂ Utilization Technologies in Europe: A Short Review