Authors:Pierre-Yves Massé, Maylis Duru, Benoit Couraud, Haicheng Ling, Solal Bizeul, Hugo Roussel, Cléa Verdot, Mariane Vittoz, Estefania Alvarez, Merlinda Andoni, Yann Rozier, Sonam Norbu, David Flynn, Erwin Franquet, Thibault Rihet
Abstract:While Renewable Energy Communities (RECs) and Collective Self-Consumption (CSC) schemes have emerged as promising tools to accelerate renewable energy adoption and support the net-zero transition, their full potential can only be realised when complemented by demand-side flexibility that aligns consumption with renewable generation. Water storage heaters can function as distributed thermal storage, absorbing excess renewable energy at the community level. This work quantifies both the benefits of water storage heaters flexibility for energy consumers in a CSC community in France (such as energy bill reduction, increase of self-consumption), and the challenges related to the implementation and user acceptance. At the first stage, an annual simulation analysis is performed on a community of 41 households and a large solar PV plant, comparing a scenario without a CSC community, a scenario with a standard CSC community, and a scenario with a CSC community with flexibility from water storage heaters, which showed that an average benefit of 70euro/year per household can be achieved due to flexibility and an increase of 6% and 22% of solar PV community self-consumption and self-production respectively. In the second stage, we present the results of the real-world deployment in the community, analysing its technical performance and user reception, and examine the main factors shaping user engagement and satisfaction.
From: Benoit Couraud Dr. [view email]
[v1]
Tue, 2 Jun 2026 11:28:42 UTC (1,223 KB)
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