Economic potential of power-to-gas energy storages

Baumann, Christoph; Schuster, Rilana; Moser, Albert

doi:10.1109/eem.2013.6607315

Cited by 45 publications

(34 citation statements)

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“…Compared with the traditional energy storage methods such as fly-wheels and batteries, the capacities of PtG plants are much larger [5], as the converted NG can be restored in both the NG storage tank and the NG network. On the other hand, a simple PtG plant only converts electrical energy into NG, while other storages could transfer their stored energy back to the power system when needed.…”

Section: Energy Storage For Mitigating Volatile Power Outputs From Rementioning

confidence: 99%

“…So far, the demonstrated PtG plants normally employ those mature and commercialized technologies, while the other pilot technologies under research may become available for large-capacity PtG plants in the near future [5]. The investment of PtG plant mainly consists of three components: electrolysis, methanation, hydrogen storage and compression [16,17].…”

Section: ) Capexmentioning

confidence: 99%

“…Although the application and business patterns of PtG plants have been studied in some publications [5][6][7][8]10], in-depth modeling and economic analysis of PtG technologies in electric power and natural gas systems have not yet been systematically addressed. Based on the integration of PtG plants in electric power system and NG network, the potential application scenarios of PtG plants are modeled and the corresponding costs and profits are analyzed in this paper.…”

Section: Introductionmentioning

confidence: 99%

“…This process generally consists of two steps, namely electrolysis and methanation, while the latter one could be optional for electrolyzer-only PtG plants [5,6]. By March 2013, there are around 30 PtG demonstration plants, most of which are installed in Germany, and the installed capacities of these plants range from several kW to 6 MW [7].…”

Section: Introductionmentioning

confidence: 99%

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Power-to-gas technology in energy systems: current status and prospects of potential operation strategies

Liu

Wen

Xue³

2017

J. Mod. Power Syst. Clean Energy

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Regarded as a long-term, large capacity energy storage solution, commercialized power-to-gas (PtG) technology has attracted much research attention in recent years. PtG plants and natural gas-fired power plants can form a close loop between an electric power system and a natural gas network. An interconnected multi-energy system is believed to be a solution to the future efficient and environmental friendly energy systems. However, some crucial issues require in-depth analysis before PtG plants can be economically implemented. This paper discusses current development status and potential application of PtG plants in the future interconnected multi-energy systems, and further analyzes the costs and benefits of PtG plants in different application scenarios. In general, the PtG plants are not economical efficient based on current technologies and costs. But the situation is likely to change with the development of PtG technologies and interconnected operation of gas-electricity energy system.

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Section: Energy Storage For Mitigating Volatile Power Outputs From Rementioning

confidence: 99%

Section: ) Capexmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Power-to-gas technology in energy systems: current status and prospects of potential operation strategies

Liu

Wen

Xue³

2017

J. Mod. Power Syst. Clean Energy

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“…For example, the capital cost of lithium-ion batteries for microgrid and residential implementations are up to $1000 and $1500 per kWh, respectively [11]. Besides batteries, there are other types of energy storage technologies such as the flywheel, pumped hydro power, compressed air [12], vehicle-to-grid [13] and power-to-gas [14]. Each technology has unique features, but none of them can meet all the requirements of being robust, reliable and economically competitive [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Interconnecting Microgrids via the Energy Router with Smart Energy Management

Liu

Fang

2017

Energies

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A novel and flexible interconnecting framework for microgrids and corresponding energy management strategies are presented, in response to the situation of increasing renewable-energy penetration and the need to alleviate dependency on energy storage equipment. The key idea is to establish complementary energy exchange between adjacent microgrids through a multiport electrical energy router, according to the consideration that adjacent microgrids may differ substantially in terms of their patterns of energy production and consumption, which can be utilized to compensate for each other's instant energy deficit. Based on multiport bidirectional voltage source converters (VSCs) and a shared direct current (DC) power line, the energy router serves as an energy hub, and enables flexible energy flow among the adjacent microgrids and the main grid. The analytical model is established for the whole system, including the energy router, the interconnected microgrids and the main grid. Various operational modes of the interconnected microgrids, facilitated by the energy router, are analyzed, and the corresponding control strategies are developed. Simulations are carried out on the Matlab/Simulink platform, and the results have demonstrated the validity and reliability of the idea for microgrid interconnection as well as the corresponding control strategies for flexible energy flow.

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On current and future economics of electricity storage

2020

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Increasing electricity generation from variable renewable energy sources, such as wind and solar, has led to interest in additional short-term and long-term storage capacities. The core objective of this paper is to investigate the costs and the future market prospects of different electricity storage options, such as short-term battery storage and long-term storage as pumped hydro storage, as well as hydrogen and methane from power-togas conversion technologies. The method of approach is based on a formal economic framework with a dynamic component to derive scenarios up to 2040. The major conclusion is that the economic prospects of storage are not very bright. For all market-based storage technologies it will become hard to compete in the wholesale electricity markets and for decentralized (battery) systems it will be hard to compete with the end users' electricity price. The core problem of virtually all categories of storage are low full-load hours (for market-based systems) and low full charge/discharge cycles (for decentralized batteries). However, any new storage capacity should be constructed only in a coordinated way and if there is a clear sign for new excess production, in this case from variable renewables. In addition, for hydrogen and methane there could be better economic prospects in the transport sector due to both, higher energy price levels as well as a general lack of low carbon fuel alternatives.

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Economic potential of power-to-gas energy storages

Cited by 45 publications

References 1 publication

Power-to-gas technology in energy systems: current status and prospects of potential operation strategies

Power-to-gas technology in energy systems: current status and prospects of potential operation strategies

Interconnecting Microgrids via the Energy Router with Smart Energy Management

On current and future economics of electricity storage

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