Heat pump integration for domestic hot water: Data gaps, modelling limits, and implications for long-term planning
By: Hermano Bernardo and Mahamat Habib Bechir
References
- Ahmed, K, Pylsy, P and Kurnitski, J. 2016. ‘Hourly consumption profiles of domestic hot water for different occupant groups in dwellings’. Solar Energy, 137: 516–530. DOI: 10.1016/j.solener.2016.08.033
- Amirnekooei, K, Ardehali, MM and Sadri, A. 2012. ‘Integrated resource planning for Iran: Development of reference energy system, forecast, and long-term energy-environment plan’. Energy, 46(1): 374–385. DOI: 10.1016/j.energy.2012.08.013
- Bagge, H and Johansson, D. 2011. ‘Measurements of household electricity and domestic hot water use in dwellings and the effect of different monitoring time resolution’. Energy, 36(5): 2943–2951. DOI: 10.1016/j.energy.2011.02.037
- Capelo, S, Soares, T, Azevedo, I, Fonseca, W and Matos, MA. 2023. ‘Design of an Energy Policy for the Decarbonisation of Residential and Service Buildings in Northern Portugal’. Energies, 16(5). DOI: 10.3390/en16052239
- Çengel, YA, Boles, MA and Kanoğlu, M. 2019. Thermodynamics: An Engineering Approach. 9th ed. New York: McGraw-Hill Education.
- Chmielewska, A. 2025. ‘Characteristics of Domestic Hot Water Consumption Profiles in Multi-Family Buildings for Energy Modeling Purposes’. Energies, 18(17). DOI: 10.3390/en18174578
- DGEG. 2021. Inquérito ao Consumo de Energia no Sector Doméstico – 2020. Edited by IP Instituto Nacional de Estatística.
- DGEG. 2024. Balanço Energético Nacional 2023. Edited by Direção de Serviços de Planeamento Energético e Estatística. Direção Geral de Energia e Geologia.
- DGGE. 2004. Energy efficiency in electrical equipment and systems in the residential sector. Available at
www.p3e-portugal.com . - European Commission. 2020. In focus: Energy efficiency in buildings - European Commission. Available at
https://commission.europa.eu/news-and-media/news/focus-energy-efficiency-buildings-2020-02-17_en [Last accessed 23 February 2026]. - Eurostat. 2026. Electricity price statistics Statistics Explained. Available at
https://ec.europa.eu/eurostat/statisticsexplained/ . - Famiglietti, J, Toppi, T, Bonalumi, D and Motta, M. 2023. ‘Heat pumps for space heating and domestic hot water production in residential buildings, an environmental comparison in a present and future scenario’. Energy Conversion and Management, 276. DOI: 10.1016/j.enconman.2022.116527
- Fuentes, E, Arce, L and Salom, J. 2018.
‘A review of domestic hot water consumption profiles for application in systems and buildings energy performance analysis’ . Volume 81. Elsevier Ltd: 1530–1547. DOI: 10.1016/j.rser.2017.05.229 - Gardumi, F, Shivakumar, A, Morrison, R, Taliotis, C, Broad, O, Beltramo, A, Sridharan, V, Howells, M, et al. 2018. ‘From the development of an open-source energy modelling tool to its application and the creation of communities of practice: The example of OSeMOSYS’. Energy Strategy Reviews, 20: 209–228. DOI: 10.1016/j.esr.2018.03.005
- GroupSumi. 2026. Heat pump | GroupSumi. Available at
https://groupsumi.pt/en/search/Heat%20pump [Last accessed 27 April 2026]. - Howells, M, Rogner, H, Strachan, N, Heaps, C, Huntington, H, Kypreos, S, Hughes, A, Silveira, S, et al. 2011. ‘OSeMOSYS: The Open Source Energy Modeling System. An introduction to its ethos, structure and development’. Energy Policy, 39(10): 5850–5870. DOI: 10.1016/j.enpol.2011.06.033
- IEA. 2025. World Energy Outlook 2025. International Energy Agency.
- Intuis. 2026. What is the price of a heat pump? Available at
https://intuis.fr/en/info/what-is-the-price-of-a-heat-pump [Last accessed 27 April 2026]. - Jørgensen, BN and Ma, Z. 2025.
‘Energy Efficiency and Decarbonization Strategies in Buildings: A Review of Technologies, Policies, and Future Directions’ . Volume 15. Multidisciplinary Digital Publishing Institute (MDPI). DOI: 10.3390/app152111660 - Marszal-Pomianowska, A, Jensen, RL, Pomianowski, M, Larsen, OK, Jørgensen, JS and Knudsen, SS. 2021. ‘Comfort of domestic water in residential buildings: Flow, temperature and energy in draw-off points: Field study in two Danish detached houses’. Energies, 14(11). DOI: 10.3390/en14113314
- Marszal-Pomianowska, A, Zhang, C, Pomianowski, M, Heiselberg, P, Gram-Hanssen, K and Hansen, AR. 2019. ‘Simple methodology to estimate the mean hourly and the daily profiles of domestic hot water demand from hourly total heating readings’. Energy and Buildings, 184: 53–64. DOI: 10.1016/j.enbuild.2018.11.035
- Nasa. 2026. NASA POWER | Data Access Viewer (DAV). Available at
https://power.larc.nasa.gov/data-access-viewer/ [Last accessed 09 April 2026]. - Nosrati-Ghods, N, De Kock, S, Dixon, L, Mosongo, B, Kiley, F, Marquard, A and Howells, M. 2025.
‘Long-term forecasting: A MAED application for residential water heating in South Africa (2024–2040)’ . Volume 60. Elsevier Ltd. DOI: 10.1016/j.esr.2025.101776 - Observatorio da Energia, DGEG – Direção Geral de Energia e Geologia and ADENE – Agência para a Energia. 2025. Título Energia em Números. Edited by ADENE–Agência para a Energia.
- Oliveira Panão, MJN and Figueira, MVL. 2025. ‘Decarbonizing residential water heating: Pathways to cost-competitive energy solutions in the European context’. Energy and Buildings, 347. DOI: 10.1016/j.enbuild.2025.116269
- Rémi, C, Rose, HP and Adrian, J. 2024. Energy Performance of Buildings Directive (EPBD) Implementation Guide. Efficient Buildings Europe.
- Sborz, J, Kalbusch, A and Henning, E. 2022.
‘A Review on Domestic Hot Water Consumption in Social Housing’ . Volume 14. MDPI. DOI: 10.3390/w14172699 - Staffell, I, Brett, D, Brandon, N and Hawkes, A. 2012. ‘A review of domestic heat pumpsâ’. Energy & Environmental Science, 5: 9291–9306. DOI: 10.1039/c2ee22653g
- Sunshop. 2026. Heat pump – Sunshop Portugal. Available at
https://sunshop.pt/en/search?q=Heat+pump&options%5Bprefix%5D=last [Last accessed 27 April 2026]. - Swan, LG and Ugursal, VI. 2009. ‘Modeling of end-use energy consumption in the residential sector: A review of modeling techniques’. Volume 13: 1819–1835. DOI: 10.1016/j.rser.2008.09.033
DOI: https://doi.org/10.66506/essp.7-108-26 | Journal eISSN: 2001-7960
Language: English
Page range: 33 - 33
Submitted on: Mar 25, 2026
Accepted on: May 25, 2026
Published on: Aug 3, 2026
Published by: European Council for an Energy Efficient Economy (eceee)
In partnership with: Paradigm Publishing Services
Keywords:
© 2026 Hermano Bernardo, Mahamat Habib Bechir, published by European Council for an Energy Efficient Economy (eceee)
This work is licensed under the Creative Commons Attribution 4.0 License.