Assessment of Energy Flexibility of Residential Buildings with Phase Change Materials in Uzbekistan Using the Flexibility Evaluation Tool

DOI

10.2991/978-94-6239-668-5_55How to use a DOI?

Keywords

Energy Flexibility; Phase Change Materials; Residential Buildings; Heating Loads; Flexible Operation; Shifted Loads

Abstract

Uzbekistan’s drastically changing continental climate and rapidly rising residential energy consumption mean that structures that have demand-side flexibility to facilitate the incorporation of renewable energy are needed shortly. The present research assesses the energy flexibility of residential buildings augmented with phase change materials (PCMs) utilising the standardised framework of the IEA EBC Annex 67 Flexibility Evaluation Tool (FET). We used dynamic Modelica simulations to get hourly heating and cooling loads for both reference and demand-responsive operation. An orthogonal experimental design (OED) comprising six PCM parameters and five levels was utilised to ascertain the predominant material properties affecting flexibility indicators, such as flexibility efficiency (Eflex), shifted loads (Sflex), peak shaving (PS), ramp-rate reduction (RR), and cost-weighted savings. The results indicate that PCM density, thickness, and latent heat significantly facilitate long-duration load shifting, but melting temperature predominantly influences peak demand decreases. The results show that better PCM integration greatly increases the flexibility of residential energy use in Uzbekistan, which helps with grid stability and the use of renewable energy.

Copyright

© 2026 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Akbar Halimov
AU  - Azamat Shukurov
AU  - Dilshod Jalilov
AU  - Tukhtamurod Juraev
AU  - Jasurjon Akhatov
PY  - 2026
DA  - 2026/05/14
TI  - Assessment of Energy Flexibility of Residential Buildings with Phase Change Materials in Uzbekistan Using the Flexibility Evaluation Tool
BT  - Proceedings of the International Conference on Current Problems in Engineering and Applied Sciences (ICCPEAS 2025)
PB  - Atlantis Press
SP  - 529
EP  - 538
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6239-668-5_55
DO  - 10.2991/978-94-6239-668-5_55
ID  - Halimov2026
ER  -