Electricity Storage

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Energy Science and Technology".

Deadline for manuscript submissions: closed (20 January 2021) | Viewed by 6141

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Department of Electrical Engineering, University of Zaragoza, Calle María de Luna, 3, 50018 Zaragoza, Spain
Interests: renewable energy; electricity storage; advanced batteries models; net metering; energy management; optimization algorithms
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Special Issue Information

Dear Colleagues,

Electricity storage will play a crucial role in the energy transition, allowing the massive renewable energy integration in the electrical power system. As countries strive to significantly reduce emissions from power generation and renewable penetration becomes high in the electrical mix, storage will be needed so that future electricity systems can accommodate the fluctuating availability to solar and wind energy. Pumped hydro storage has historically been implemented to reduce generation costs, shifting the electricity supply from times of low demand to times of high demand. At present, batteries and other mechanical and thermal storage systems are also suitable for electricity storage in the power system. Electricity storage could help the utility grid operate more efficiently, reduce the likelihood of brownouts during peak demand, and contribute to frequency control, load shifting, peak shaving, smoothing/ramp rate control, and power quality, among others. In stand-alone (off-grid) systems, electricity storage is absolutely crucial for supplying the load when renewable sources cannot supply the load (load following). Taking into account all the above, this Special Issue is dedicated to any topic related to electricity storage, including all the storage technologies, applications, modelling, control, sizing, simulation, and optimization, for grid-connected or off-grid systems, considering technical, environmental, and economic aspects.  

Prof. Dr. Rodolfo Dufo-López
Guest Editor

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Published Papers (1 paper)

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Research

16 pages, 3728 KiB  
Article
Comparison of Lead-Acid and Li-Ion Batteries Lifetime Prediction Models in Stand-Alone Photovoltaic Systems
by Rodolfo Dufo-López, Tomás Cortés-Arcos, Jesús Sergio Artal-Sevil and José L. Bernal-Agustín
Appl. Sci. 2021, 11(3), 1099; https://doi.org/10.3390/app11031099 - 25 Jan 2021
Cited by 43 | Viewed by 5490
Abstract
Several models for estimating the lifetimes of lead-acid and Li-ion (LiFePO4) batteries are analyzed and applied to a photovoltaic (PV)-battery standalone system. This kind of system usually includes a battery bank sized for 2.5 autonomy days or more. The results obtained [...] Read more.
Several models for estimating the lifetimes of lead-acid and Li-ion (LiFePO4) batteries are analyzed and applied to a photovoltaic (PV)-battery standalone system. This kind of system usually includes a battery bank sized for 2.5 autonomy days or more. The results obtained by each model in different locations with very different average temperatures are compared. Two different locations have been considered: the Pyrenees mountains in Spain and Tindouf in Argelia. Classical battery aging models (equivalent full cycles model and rainflow cycle count model) generally used by researchers and software tools are not adequate as they overestimate the battery life in all cases. For OPzS lead-acid batteries, an advanced weighted Ah-throughput model is necessary to correctly estimate its lifetime, obtaining a battery life of roughly 12 years for the Pyrenees and around 5 years for the case Tindouf. For Li-ion batteries, both the cycle and calendar aging must be considered, obtaining more than 20 years of battery life estimation for the Pyrenees and 13 years for Tindouf. In the cases studied, the lifetime of LiFePO4 batteries is around two times the OPzS lifetime. As nowadays the cost of LiFePO4 batteries is around two times the OPzS ones, Li-ion batteries can be competitive with OPzS batteries in PV-battery standalone systems. Full article
(This article belongs to the Special Issue Electricity Storage)
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