Techno-economic assessment of energy storage systems for enabling projected increase of renewables onto electrical power grids

Gazey, R.; Ali, Dallia; Amu, D.

doi:10.1049/cp.2011.0135

Cited by 3 publications

(2 citation statements)

References 8 publications

(9 reference statements)

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“…Plant power reports confirm that most of the demonstration plants components are often not ideally sized due to cost constraints or the lack of specific equipment sizes in the market. Nonetheless, modeling-based studies were carried out in the context of these projects to highlight the importance of optimal sizing in the hydrogen systems [6], [19], [20].…”

Section: A Comparison Framework 1) Design Criteriamentioning

confidence: 99%

A technical evaluation of Wind-Hydrogen (WH) demonstration projects in Europe

Valverde

Ali

Abdel‐Wahab

et al. 2013

4th International Conference on Power Engineering, Energy and Electrical Drives

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Investment in Renewable (RES) is at the center of energy policy i shortcoming of renewable energy is intermittency which can pose a risk to energy supply. Energy storage thus beco order to address the mismatch between en supply. The utilization of Wind-Hydrog storage systems and Fuel Cells provides This paper presents a technical evalu Hydrogen (WH) Demonstration projects scope of evaluation includes a compara design criteria, operation and energy man with technical challenges. It is argued Hydrogen and Fuel cell Energy system efficient electrolyzers and better ener systems and that lab-scale testing is esse inform the development of future demonst Keywords-renewable; hydogen energy techn demonstration projects; electrolysis, fuel cell; pe I. luation of Wind-Hyd ration projects in Eur

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Section: A Comparison Framework 1) Design Criteriamentioning

confidence: 99%

A technical evaluation of Wind-Hydrogen (WH) demonstration projects in Europe

Valverde

Ali

Abdel‐Wahab

et al. 2013

4th International Conference on Power Engineering, Energy and Electrical Drives

Self Cite

View full text Add to dashboard Cite

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“…A lower output power from the PV panel results in a lower charge current, thereby producing lower turn-around efficiencies. The turn-around efficiency, ratio between input energy (charging power) and output energy (discharging power) [16] should be considered to be around 75% [17].…”

Section: Possible Effects Of Climate Change On Pv Systemsmentioning

confidence: 99%

Ensuring sustainability of PV systems for a given climate region in South Africa

2013

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A number of software simulation packages for alternative energy systems exist which may be used to determine PV system installation parameters (e.g. tilt and orientation angles) and operating limits (e.g. maximum drain current per day). However, climate change has contributed to a series of variations in weather patterns, resulting in either prolonged rain periods or lengthy heat waves. Both these variable climatic conditions exert a negative influence on the sustainability of PV systems, resulting either in system downtime or system lifetime reduction. This paper aims to contrast the results of a specific software package (RETScreen) for PV systems to experimental results obtained for a given climatic region in South Africa. The results indicate that the RETScreen software package's results should be seen as a guide in the design and installation of sustainable PV systems.

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Hydrogen Energy Storage

Ali¹

2019

Energy Storage Devices

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The dominating trend of variable renewable energy sources (RES) continues to underpin the early retirement of baseload power generating sources such as coal, nuclear, and natural gas steam generators; however, the need to maintain system reliability remains the challenge. Implementing energy storage with conventional power plants provides a method for load leveling, peak shaving, and time shifting allowing power quality improvement and reduction in grid energy management issues, implementing energy storage with RES smooth their intermittency, by storing the surplus in their generation for later use during their shortfall, thus enabling their high penetration into the electricity grid. Energy storage technologies (EST) can be classified according to many criteria like their application (permanent or portable), capacity, storage duration (short or long), and size (weight and volume). EST suited for short duration storage and low-to-medium power outputs are seen performing better in improving power quality, while those providing medium-to-high power outputs with long durations are seen better suited for energy management of electrical networks. With the growing deployment of renewable energy systems, EST must be utilized to allow the grid to absorb the increased integration of RES generation. The recent advances in hydrogen energy storage technologies (HEST) have unlocked their potential for use with constrained renewable generation. HEST combines hydrogen production, storage, and end use technologies with the renewable generation either in a directly connected configuration or in an indirectly connected configuration via the existing power network. This chapter introduces the hydrogen energy storage technology and its implementation in conjunction with renewable energy sources. The efficiency of renewable hydrogen energy storage systems (RHESS) will be explored with a techno-economic assessment. A levelized cost (LC) model that identifies the financial competitiveness of HEST in different application scenarios is given, where five scenarios are investigated to demonstrate the most financially competitive configuration. To address the absence of a commercial software tool that can quickly size an energy system incorporating HEST while using limited data, a deterministic modeling approach that enables a quick initial sizing of hybrid renewable hydrogen energy systems (HRHES) is given in this chapter. This modeling approach can achieve the initial sizing of a HRHES using only two input data, namely the available renewable energy resource and the load profile. A modeling of the effect of the electrolyzer thermal transients at start-up, when operated in conjunction with an intermittent renewable generation, on the quantity of hydrogen produced is also given in this chapter.

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Techno-economic assessment of energy storage systems for enabling projected increase of renewables onto electrical power grids

Cited by 3 publications

References 8 publications

A technical evaluation of Wind-Hydrogen (WH) demonstration projects in Europe

A technical evaluation of Wind-Hydrogen (WH) demonstration projects in Europe

Ensuring sustainability of PV systems for a given climate region in South Africa

Hydrogen Energy Storage

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