Dear Colleagues,

The future energy sector must rely on energy conversion systems that can offer secure generation, operate robustly and with close-to-zero environmental impact. Hybrid and polygeneration plants, combining different energy sources and producing several products silmutenously, will be highly relevant and particularly attractive for specific demanding regions and applications. Selected systems should aim for maximum performance (efficiency) and minimization of any social and environmental impacts, being highly based on renewable energies and close-to-zero consumption of valuable resources, like freshwater. Ways to ensure the continuous and robust operation of the systems, also related to changing climatic conditions (climate change), must be considered.

This Special Issue invites studies on the design and implementation of robust energy conversion systems, also accounting for sustainability issues and/or regional and climatic characteristics. Dynamic simulations, energy and exergetic analyses, environmental, social and economic studies, and mathematical optimization, will help to demonstrate the advantages and disadvantages of the studied processes.

The manuscripts received will help to generate and share scientific knowledge on the aforementioned topics, complementing the existing literature and favoring progress towards a more sustainable and secure power generation sector. The editors of this Special Issue will review the papers with special attention, prioritizing those that are written and structured well, not previously published and with methodologies and results that meet the desired purpose.

Prof. Dr. Fontina Petrakopoulou
Prof. Dr. Francesco Calise
Dr. Maria Vicidomini
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. Sustainability 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 2400 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.

• energy security
• renewable energy
• zero emissions
• energy conversion systems
• renewable energy
• zero-water plants
• climate change