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Integrated Energy Storage System for Decarbonization

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

Deadline for manuscript submissions: 20 October 2026 | Viewed by 760

Special Issue Editor


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Guest Editor
Department of Chemistry and Bioscience, Aalborg University, Esbjerg, Denmark
Interests: optimization; renewable energy; carbon capture; biofuels; power-to-X

Special Issue Information

Dear Colleagues,

As global energy systems undergo unprecedented change, the need for flexible, efficient, and deeply decarbonized energy infrastructure has never been more urgent. The rapid growth in renewable energy, especially wind, solar, and sustainable biomass, has brought significant variability and intermittency to modern power grids. To maintain reliability, stability, and sector-wide integration, advanced energy storage solutions are becoming a key part of the clean energy transition.

Integrated energy storage systems (IESS) are now seen not just as auxiliary units that balance supply and demand. They are becoming versatile assets that support Power-to-X (PtX) pathways, carbon utilization, sector coupling, thermal integration, and system-wide optimization. Recent research—including hybrid Power-to-Gas-to-Power (PtGtP) cycles, waste heat recovery architectures, biomass-driven thermodynamic cycles, oxygen and methane storage configurations, and transient energy system modeling—shows that storage technologies can actively enable multi-sector decarbonization.

This Special Issue aims to gather the latest scientific and technological advancements in integrated energy storage systems that facilitate deep decarbonization across electricity, heating, transportation, and industrial sectors. Contributions exploring thermodynamic innovation, system integration, sector coupling, techno-economic evaluation, experimental validation, and policy frameworks are all encouraged.

Topics of interest include, but are not limited to, the following:

  • Power-to-X (PtX) pathways, including Power-to-Gas (PtG) and Power-to-Liquid (PtL), among others.
  • Power-to-Gas-to-Power (PtGtP) systems for long-duration storage.
  • Integration of renewable energy with advanced conversion cycles.
  • Integrated biomass, waste-to-energy, and carbon-capture-based storage systems.
  • Hybrid energy storage cycles combining chemical, thermal, and electrical storage.
  • Waste heat recovery, cogeneration, and multi-product energy hubs.
  • Seasonal storage solutions using hydrogen, methane, ammonia, or synthetic fuels.
  • High-pressure oxygen and hydrogen storage for advanced cycle integration.
  • Thermodynamic, exergy, and system integration analyses.
  • Dynamic and transient modeling of coupled storage–conversion systems.
  • Optimization, sensitivity analysis, and techno-economic evaluation.
  • Sector coupling: electricity–gas–heat–transport integration.
  • Water–energy–carbon nexus and desalination integrated with storage systems.
  • Carbon utilization and synthetic fuel production for net-zero systems.
  • Grid flexibility, resilience, and system-level decarbonization strategies.
  • Policy frameworks and transition pathways for large-scale renewable storage adoption.

Dr. Seyed Mojtaba Alirahmi
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 250 words) can be sent to the Editorial Office for assessment.

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

  • integrated energy storage
  • power-to-X (PtX)
  • power-to-gas-to-power (PtGtP)
  • renewable energy integration
  • waste heat recovery
  • hydrogen
  • methanation
  • multi-sector decarbonization
  • techno-economic analysis

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Published Papers (1 paper)

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Research

19 pages, 3691 KB  
Article
Energy Flexibility Evaluation for Building Passive Thermal Storage Mass
by Haiyang Yuan, Yongbao Chen, Alessandra Di Gangi and Zhe Chen
Energies 2026, 19(4), 1035; https://doi.org/10.3390/en19041035 - 16 Feb 2026
Viewed by 474
Abstract
This study proposes a systematic methodology to evaluate the energy flexibility and operational performance of air-conditioning systems (ACSs) in residential buildings, leveraging the passive thermal storage capacity of building thermal mass through indoor temperature setpoint adjustment. A comparative analysis was conducted between inverter-controlled [...] Read more.
This study proposes a systematic methodology to evaluate the energy flexibility and operational performance of air-conditioning systems (ACSs) in residential buildings, leveraging the passive thermal storage capacity of building thermal mass through indoor temperature setpoint adjustment. A comparative analysis was conducted between inverter-controlled and intermittent on-off air conditioners under a baseline indoor temperature of 24 °C. Two additional temperature setpoint scenarios (26 °C and 28 °C) were tested to quantify variations in the building’s electricity consumption demand. To characterize the dynamic thermal response across different floor levels, ground-floor, middle-floor, and top-floor apartments were investigated in a three-story residential building, enabling a controlled, floor-level comparison under identical control logic and climatic conditions. Dymola simulation software was employed to model and calculate ACS energy consumption and energy flexibility under the three temperature setpoint conditions (24 °C, 26 °C, and 28 °C). Results indicate that a strategy of scheduled ACS shutdown and automatic restart, enabled by the thermal inertia capacity of building thermal mass, effectively enhances ACS energy flexibility. Specifically, adjusting the zone temperature setpoint reduced the total ACS load by approximately 40% in two hours of a demand response event. This temperature setpoint adjustment strategy demonstrates significant potential to mitigate grid peak-load demand without compromising indoor thermal comfort and requiring additional building retrofitting investments. The findings provide a technical basis for optimizing residential ACS operation and promoting demand-side management in power systems. Full article
(This article belongs to the Special Issue Integrated Energy Storage System for Decarbonization)
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