From Joule to Carnot: ex-post electricity savings achieved through residential air-to-air heat pumps
By: Dominique Osso, Guillaume Binet and Benjamin Petiau
References
- ADEME. 2024. Base Empreinte®. Agence de la transition écologique.
https://base-empreinte.ademe.fr/donnees/jeu-donnees - ADEME. 2025. BâtiZoom. Observatoire de la Transition Ecologique du Bâtiment. Agence de la transition écologique.
https://batizoom.ademe.fr/indicateurs/part-des-logements-climatises - ADEME and Enertech. 2025. Panel Usages Electrodomestiques Année 6 – Elaboration d’un service de mise à disposition de données de consommations électrodomestiques précises et fiables. 64p.
- ADEME, Enertech, Dupret, M and Bramkamp, U. 2025. Performance Pompes à chaleur : réalisation d’une campagne de mesure sur des pompes à chaleur en résidentiel individuel. 227p.
- ANAH. 2025. Les aides financières en 2025. 72P. Agence Nationale de l’Amélioration de l’Habitat.
https://www.anah.gouv.fr/sites/default/files/2025-09/202509_guide-aides-financieres_web_1.pdf - Binet, G and Grignon-Massé, L. 2020. La climatisation des logements résidentiels laisser faire ou encadrer intelligemment. Eden Mag, 11, 4p.
- Bulletin Officiel des Finances Publiques. 2014. ANNEXE – TVA – Taux de TVA applicables aux équipements de chauffage. BOFIP. BOI-ANNX-000203.
- Carroll, P, Chesser, M and Lyons, P. 2020. ‘Air Source Heat Pumps field studies: A systematic literature review’. Renewable and Sustainable Energy Reviews, 134: 110275. DOI: 10.1016/j.rser.2020.110275
- Centre Scientifique et Technique du Bâtiment. 2025. Confort thermique d’été : campagne de mesure en logement collectif, été 2023. CSTB. RENOPTIM project. 171p.
https://www.proreno.fr/documents/mesure-in-situ-du-confort-dete - CODA Stratégies. 2021. La climatisation de confort dans le bâtiment. 110p
- Delacre, M, Lakens, D and Leys, C. 2017. ‘Why Psychologists Should by Default Use Welch’s t-test Instead of Student’s t-test’. International Review of Social Psychology, 30(1): 92–101. DOI: 10.5334/irsp.82
- Dinno, A. 2015. ‘Nonparametric pairwise multiple comparisons in independent groups using Dunn’s test’. The Stata Journal, 15(1): 292–300. DOI: 10.1177/1536867X1501500117
- Duchon, C and Hale, R. 2012. Time Series Analysis in Meteorology and Climatology : An introduction. John Wiley & Sons, Ltd. DOI: 10.1002/9781119953104
- Dunn, OJ. 1961. ‘Multiple comparisons among means’. Journal of the American Statistical Association, 56: 52–64. DOI: 10.1080/01621459.1961.10482090
- Dupret, M. 2025. Etude sur les consommations des PAC air/air. ENERTECH, ADEME. 88p.
https://librairie.ademe.fr/batiment/8595-etude-sur-les-consommations-des-pac-air-air.html - Ecoinfo. 2022. Marché photovoltaïque 2025 : Les chiffres clés.
https://www.les-energies-renouvelables.eu/conseils/photovoltaique/les-chiffres-essentiels-du-photovoltaique - ESABCC. 2026. Strengthening Resilience to Climate Change Recommendations for an effective EU adaptation policy framework. European Scientific Advisory Board on Climate Change. Publications Office of the European Union, 169p. DOI: 10.2800/6761189
- European Environment Agency. 2026. Overheated and underprepared: European survey finds citizens concerned about heat and ability to cope with climate change. EEA; 50p.
https://www.eea.europa.eu/en/analysis/publications/overheated-and-underprepared-europeans-experience-of-living-with-climate-change - Fernández, C and Steel, MF. 1998. ‘On Bayesian modeling of fat tails and skewness’. Journal of the American Statistical Association, 93(441): 359–371. DOI: 10.1080/01621459.1998.10474117
- Friedman, JH. 1991. ‘Multivariate Adaptive Regression Splines (with discussion)’. Annals Statistics, 19(1): 1–141.
https://projecteuclid.org/euclid.aos/1176347963 - Gonand, F. 2024. ‘Les Certificats d’Économie d’Énergie (CEE) : enseignements économiques généraux et comparaisons internationales’. La Revue de l’Énergie, 673: 29–44. DOI: 10.3917/ener.673.0029
- Husson, F, Josse, J and Pagès, J. 2010. Principal component methods – hierarchical clustering – partitional clustering: why would we need to choose for visualizing data? Technical Report of the Applied Mathematics Department (Agrocampus). 17p.
- Intergovernmental Panel on Climate Change. 2022. Climate Change 2022. Mitigation for climate change. Working Group III contribution to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change. 2042p. DOI: 10.1017/9781009157926
- Jiang, S, Zhao, H and Ni, L. 2025. ‘Review and prospect of air source heat pump research: A bibliometric insight’. International Journal of Refrigeration, 170: 172–191. DOI: 10.1016/j.ijrefrig.2024.11.029
- Kruskal, WH and Wallis, WA. 1952. ‘Use of ranks in one-criterion variance analysis’. Journal of the American Statistical Association, 47: 583–621. DOI: 10.1080/01621459.1952.10483441
- Lê, S, Josse, J and Husson, F. 2008. ‘FactoMineR: An R Package for Multivariate Analysis’. Journal of Statistical Software, 25(1): 1–18. DOI: 10.18637/jss.v025.i01
- Lebart, L, Morineau, A and Piron, M. 1995. Statistique exploratoire multidimensionnelle. Dunod.
- Marchal, D. 2026. Électrification : sortir des fossiles, sans créer de nouvelles dépendances. Un chantier au cœur de l’ADN de l’ADEME. La Revue de l’Énergie. n°685.
- McKight, PE and Najab, J. 2010. ‘Kruskal-Wallis Test’. In: Weiner, IB and Craighead, WE (eds.) The Corsini Encyclopedia of Psychology. DOI: 10.1002/9780470479216.corpsy0491
- Miara, M, Günther, D and Langner, R. 2021. ‘Heat pumps in existing residential buildings’. In: 13th IEA Heat Pump Conference 2020, Jeju-do, Korea,
September 2020 , pp. 1512–1519. - Milborrow, S. 2023. Earth: Multivariate Adaptive Regression Splines. R package version 5.3.2.
- MSI Group. 2025. Chauffage en Europe : Quel système de chauffage utilisez-vous ?
https://fr.misgroup.io/blog/chauffage-habitudes-europe-proprietaires-locataires - MTE. 2025. Coup de pouce “Chauffage”. Ministère Transition Ecologique.
https://www.ecologie.gouv.fr/politiques-publiques/coup-pouce-chauffage#de-quels-travaux-sagit-il-1 - MTE. 2026. Dispositif des Certificats d’économies d’énergie. Ministère Transition Ecologique.
https://www.ecologie.gouv.fr/politiques-publiques/dispositif-certificats-deconomies-denergie - Nagelkerke, NJ. 1991. ‘A note on a general definition of the coefficient of determination’. Biometrika, 78(3): 691–692. DOI: 10.1093/biomet/78.3.691
- Osso, D, Binet, G, Petiau, B and Laurent, M-H. 2024. ‘Ex-post energy savings assessment methodologies using smart-meter data: the case study of a switch from direct electric heating to an air-to-air heat pump’. In: eceee Summer Study Proceedings, Center Parcs Lac d’Ailette, France,
10–15 June , pp. 445–455. - R Core Team. 2025. R: A Language and Environment for Statistical Computing. R Foundation for Statistical Computing, Vienna, Austria.
https://www.R-project.org/ - Rosenow, J, Gibb, D, Nowak, T and Lowes, R. 2022. ‘Heating up the global heat pump market’. Nature Energy, 7: 901–904. DOI: 10.1038/s41560-022-01104-8
- Service des Données et Etudes Statistiques. 2026. Consommation d’énergie par usage du résidentiel. Statistique publique de l’énergie, des transports, du logement et de l’environnement. SDES.
https://www.statistiques.developpement-durable.gouv.fr/consommation-denergie-par-usage-du-residentiel - Staffell, I, Brett, D, Brandon, N and Hawkes, A. 2012. ‘A review of domestic heat pumps’. Energy & Environmental Science, 5, 9291–9306. DOI: 10.1039/c2ee22653g
- Stasinopoulos, DM and Rigby, RA. 2007. ‘Generalized additive models for location scale and shape (GAMLSS) in R’. Journal of Statistical Software, 23(7): 1–46. DOI: 10.18637/jss.v023.i07
- Toleikyte, A, Roca Reina, JC, Volt, J, Carlsson, J, Lyons, L, Gasparella, A, Koolen, D, De Felice, M, Tarvydas, D, Czako, V, Koukoufikis, G, Kuokkanen, A and Letout, S. 2023. The Heat Pump Wave: Opportunities and Challenges. European Commission. Joint Research Centre, Publications Office of the European Union, Luxembourg.
- Uniclima. 2026. Dossier de presse Uniclima. Conférence du 5 février 2026. 31p.
https://fpa.fr/wp-content/uploads/2026/02/DP-Uniclima_Bilan-2025_VF.pdf - van Buuren, S and Fredriks, M. 2001. ‘Worm plot: a tool for diagnostics of regression models at individual levels’. Statistics in Medicine, 20(8): 1259–1277. DOI: 10.1002/sim.746
- Viguié, V, Lemonsu, A, Hallegatte, S, Beaulant, A-M, Colette Marchadier, C, Masson, V, Grégoire, Pigeon, G and Salagnac, J-L. 2020. ‘Early adaptation to heat waves and future reduction of air-conditioning energy use in Paris’. Environmental Research Letters. 15: 075006. DOI: 10.1088/1748-9326/ab6a24
- Ye, L, Wu, Y, An, J, Zhou, X and Yan, D. 2026. ‘How long is long enough? toward an optimal year span for typical meteorological year selection in a changing climate’. Applied Energy, 408: 127376. DOI: 10.1016/j.apenergy.2026.127376
DOI: https://doi.org/10.66506/ed.7 | Journal eISSN: 3119-4044
Language: English
Page range: 7 - 7
Submitted on: Apr 16, 2026
Accepted on: Sep 9, 2026
Published on: Sep 24, 2026
Published by: European Council for an Energy Efficient Economy (eceee)
In partnership with: Paradigm Publishing Services
Keywords:
© 2026 Dominique Osso, Guillaume Binet, Benjamin Petiau, published by European Council for an Energy Efficient Economy (eceee)
This work is licensed under the Creative Commons Attribution 4.0 License.