Solar Energy for Cooling and Heating: Theory, Methods and Applications

A special issue of Solar (ISSN 2673-9941).

Deadline for manuscript submissions: 30 January 2026 | Viewed by 487

Special Issue Editors


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Guest Editor
Department of Industrial Engineering and Construction, Universitat de les Illes Balears (UIB), 07122 Palma, Spain
Interests: renewable energy; energy efficiency; HVAC; water management

E-Mail Website
Guest Editor
Department of Industrial Engineering and Construction, Universitat de les Illes Balears (UIB), 07122 Palma, Spain
Interests: renewable energy; PCM; solar collectors
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue focuses on the rapidly evolving field of solar energy applications in heating and cooling systems, a domain of critical importance in the context of global efforts to reduce carbon emissions and transition toward sustainable energy solutions. As buildings and industrial processes account for a significant proportion of global energy consumption—particularly for heating, cooling, and supplying hot water—harnessing solar energy offers a compelling path toward energy efficiency and environmental stewardship.

The aim of this Issue is to gather high-quality research and review papers that explore the theoretical advancements, innovative methodologies, and cutting-edge applications of solar-driven systems for thermal comfort and process needs. Topics of interest include, but are not limited to, solar thermal collectors (both non-tracking and tracking), solar photovoltaic systems, hybrid solar solutions, and system integration strategies for enhanced performance and reliability.

We particularly encourage submissions that address the following:

  • Solar thermal technologies for space and water heating, including both passive and active systems.
  • Solar cooling methods, such as photovoltaic-driven vapor compression systems and thermally driven sorption and desiccant cooling cycles.
  • Energy storage solutions that enable stable and efficient solar energy use across time scales, including sensible heat storage, latent heat storage using phase change materials, and advanced sorption or thermochemical storage.
  • System modeling, simulation, and optimization, as well as techno-economic assessments and life-cycle analyses of solar heating and cooling systems.
  • Innovative applications and case studies, including building-integrated solar solutions, solar-assisted heat pumps, and hybrid PV/T systems.

In light of recent advances in solar collector efficiency, material science, and control technologies, this Issue also seeks to highlight multidisciplinary approaches and cross-sector innovations. Research that bridges the gap between laboratory-scale findings and real-world implementations is especially welcome.

Through this Special Issue, we aim to provide a platform for researchers, engineers, and practitioners to share their knowledge, present breakthroughs, and advance the state-of-the-art in solar energy utilization for thermal management. By fostering collaboration and knowledge exchange, we hope to contribute to creating a more sustainable and energy-resilient built environment.

Dr. Andreu Moià-Pol
Prof. Dr. Iván Alonso de Miguel
Guest Editors

Manuscript Submission Information

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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. Solar is an international peer-reviewed open access quarterly journal published by MDPI.

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Keywords

  • solar cooling
  • solar heating
  • evaporative cooling
  • solar architecture

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Published Papers (1 paper)

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Review

38 pages, 6482 KB  
Review
Solar Heat for Industrial Processes (SHIP): An Overview of Its Categories and a Review of Its Recent Progress
by Osama A. Marzouk
Solar 2025, 5(4), 46; https://doi.org/10.3390/solar5040046 - 11 Oct 2025
Viewed by 108
Abstract
The term SHIP (solar heat for industrial processes) or SHIPs (solar heat for industrial plants) refers to the use of collected solar radiation for meeting industrial heat demands, rather than for electricity generation. The global thermal capacity of SHIP systems at the end [...] Read more.
The term SHIP (solar heat for industrial processes) or SHIPs (solar heat for industrial plants) refers to the use of collected solar radiation for meeting industrial heat demands, rather than for electricity generation. The global thermal capacity of SHIP systems at the end of 2024 stood slightly above 1 GWth, which is comparable to the electric power capacity of a single power station. Despite this relatively small presence, SHIP systems play an important role in rendering industrial processes sustainable. There are two aims in the current study. The first aim is to cover various types of SHIP systems based on the variety of their collector designs, operational temperatures, applications, radiation concentration options, and solar tracking options. SHIP designs can be as simple as unglazed solar collectors (USCs), having a stationary structure without any radiation concentration. On the other hand, SHIP designs can be as complicated as solar power towers (SPTs), having a two-axis solar tracking mechanism with point-focused concentration of the solar radiation. The second aim is to shed some light on the status of SHIP deployment globally, particularly in 2024. This includes a drop during the COVID-19 pandemic. The findings of the current study show that more than 1300 SHIP systems were commissioned worldwide by the end of 2024 (cumulative number), constituting a cumulative thermal capacity of 1071.4 MWth, with a total collector area of 1,531,600 m2. In 2024 alone, 120.3 MWth of thermal capacity was introduced in 106 SHIP systems having a total collector area of 171,874 m2. In 2024, 65.9% of the installed global thermal capacity of SHIP systems belonged to the parabolic trough collectors (PTCs), and another 22% of this installed global thermal capacity was attributed to the unevacuated flat plate collectors (FPC-Us). Considering the 106 SHIP systems installed in 2024, the average collector area per system was 1621.4 m2/project. However, this area largely depends on the SHIP category, where it is much higher for parabolic trough collectors (37,740.5 m2/project) but lower for flat plate collectors (805.2 m2/project), and it is lowest for unglazed solar collectors (163.0 m2/project). The study anticipates large deployment in SHIP systems (particularly the PTC type) in 2026 in alignment with gigascale solar-steam utilization in alumina production. Several recommendations are provided with regard to the SHIP sector. Full article
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