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New Advances in Renewable Energy and Sustainable Energy Storage Systems
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New Advances in Renewable Energy and Sustainable Energy Storage Systems

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A: Sustainable Energy".

Deadline for manuscript submissions: 21 November 2025 | Viewed by 1453

Special Issue Editor

Dr. Aleksandra Komorowska

E-Mail Website
Guest Editor
Mineral and Energy Economy Research Institute of the Polish Academy of Science, 31-261 Krakow, Poland
Interests: energy markets; energy transition; renewable energy sources; green hydrogen; solar energy; PV
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue, titled “New Advances in Renewable Energy and Sustainable Energy Storage Systems”, focuses on the development of energy sources and technologies that could store this energy for consistent and reliable use. As the global shift towards sustainable energy accelerates, integrating renewable energy sources (such as solar and wind) into existing grids poses significant challenges. These challenges include variability, intermittency, and the need for substantial storage capacity to ensure a stable energy supply.

This Special Issue aims to explore the latest advancements, innovative solutions, and practical implementations of energy storage systems that can effectively address these challenges. Topics of interest include battery technologies, thermal storage, pumped hydro storage, and emerging technologies. Additionally, the Special Issue will cover the economic, environmental, and policy aspects of deploying these systems on a large scale.

Dr. Aleksandra Komorowska
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • renewable energy
  • sustainable energy
  • energy storage
  • power generation integrating renewable energy sources (such as solar and wind)

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Related Special Issue

Published Papers (2 papers)

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Research

21 pages, 2961 KB  
Article
Quantifying the Capacity Credits of Intermittent Renewables: Implications for Power System Planning
by Marcin Pluta and Artur Wyrwa
Energies 2025, 18(21), 5636; https://doi.org/10.3390/en18215636 (registering DOI) - 27 Oct 2025
Abstract
The European Union’s objective of climate neutrality by 2050 requires a profound transformation of national power systems. In Poland, this transition involves reducing coal-based generation and expanding variable renewable energy sources (VRES), particularly wind and solar. Between 2020 and 2025, onshore wind capacity [...] Read more.
The European Union’s objective of climate neutrality by 2050 requires a profound transformation of national power systems. In Poland, this transition involves reducing coal-based generation and expanding variable renewable energy sources (VRES), particularly wind and solar. Between 2020 and 2025, onshore wind capacity increased from 5.9 GW to nearly 11 GW, and solar from 1.6 GW to over 22 GW, while peak electricity demand in 2024 exceeded 28 GW. Although VRES- are essential for decarbonization, their variability poses challenges for system adequacy. This study assessed the adequacy contribution of onshore wind and solar power plants using capacity credit as a key indicator. Two approaches were applied: a deterministic Load Duration Curve (LDC) method and probabilistic methods—Effective Load Carrying Capability (ELCC) and Equivalent Firm Capacity (EFC)—based on historical data from 2021–2024. The results show that capacity credits for onshore wind ranged from 8.08% to 17.27%, and for solar from 1.82% to 6.60%, depending on the method and year. Despite the presence of 1.7 GW of pumped storage and 4.4 GW of battery storage contracted in the capacity market, the relatively low VRES capacity credits underline the continued need for flexible, dispatchable generation. The findings highlight the importance of accurate capacity credit estimation to guide investment in renewables, storage, and backup capacity, thereby supporting a secure and reliable energy transition in Poland. Full article
(This article belongs to the Special Issue New Advances in Renewable Energy and Sustainable Energy Storage Systems)
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27 pages, 6102 KB  
Article
The Impact of Wind Speed on Electricity Prices in the Polish Day-Ahead Market Since 2016, and Its Applicability to Machine-Learning-Powered Price Prediction
by Rafał Sowiński and Aleksandra Komorowska
Energies 2025, 18(14), 3749; https://doi.org/10.3390/en18143749 - 15 Jul 2025
Viewed by 883
Abstract
The rising share of wind generation in power systems, driven by the need to decarbonise the energy sector, is changing the relationship between wind speed and electricity prices. In the case of Poland, this relationship has not been thoroughly investigated, particularly in the [...] Read more.
The rising share of wind generation in power systems, driven by the need to decarbonise the energy sector, is changing the relationship between wind speed and electricity prices. In the case of Poland, this relationship has not been thoroughly investigated, particularly in the aftermath of the restrictive legal changes introduced in 2016, which halted numerous onshore wind investments. Studying this relationship remains necessary to understand the broader market effects of wind speed on electricity prices, especially considering evolving policies and growing interest in renewable energy integration. In this context, this paper analyses wind speed, wind generation, and other relevant datasets in relation to electricity prices using multiple statistical methods, including correlation analysis, regression modelling, and artificial neural networks. The results show that wind speed is a significant factor in setting electricity prices (with a correlation coefficient reaching up to −0.7). The findings indicate that not only is it important to include wind speed as an electricity price indicator, but it is also worth investing in wind generation, since higher wind output can be translated into lower electricity prices. This study contributes to a better understanding of how natural variability in renewable resources translates into electricity market outcomes under policy-constrained conditions. Its innovative aspect lies in combining statistical and machine learning techniques to quantify the influence of wind speed on electricity prices, using updated data from a period of regulatory stagnation. Full article
(This article belongs to the Special Issue New Advances in Renewable Energy and Sustainable Energy Storage Systems)
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