On 26th October 2023 the JP e3s conference "Fostering Changes in energy consuption: a pathway to demand reduction" took place in Padova (Italy). The event was a starting point to stimulate a scientific and interdisciplinary discussion about energy demand reduction, that will culminate in the writing and publication of a White Paper on the topic in early summer of 2024. The Conference was structured in 3 main sessions, corresponding to three different, but complementary, ways of addressing energy demand reduction. Here below are the presentations of each session:

Keynote speeches:

• Adel El Gammal (EERA) "Net Zero Growth by 2050"

• Yves Marignac (négaWatt group) "The concept and role of sufficiency in fostering a sustainable and just energy transition"

• Benjamin Sovacool (Boston University, University of Sussex, Aarhus University) "The sociotechnical dynamics and equity dimensions of energy efficiency, smart meters and smart homes" (presentation not available yet)

Behavioural change:

• Omkar S. Patange (IIASA) "Role of population heterogeneities in energy consumption behaviour"

• Daniele Stampatori (EU) "The behavioural dimension of energy customers: A framework to deal with barriers to customer engagement"

• Gianluca Carraro (UNIPD) "Energy Communities: what is the impact of members’ habits on fossil fuel consumption?"

• Tiina Koljonen (VTT) "Save energy - make it a habit"

• Stine Fleischer Myhre (IFE) "Investigation of energy behaviour and behavioural change in the Norwegian energy system based on smart metering data"

• Ezilda Costanzo (ENEA) "Cultural audience engagement for the clean energy transition: opportunities and evidence"

Energy Efficiency:

• Kristina Haaskjold (IFE) "The role of building mass upgrade in the energy system transition -A Norwegian case study"

• Ivett Flores (TUB) "A value-based framework from Building Stock Model to Reftrofit Model"

• Marina Bertolini (UNIPD) "Renewable energy communities, digitalization and information"

• Herbert Zondag (TNO) "The Role and Impact of Energy Efficiency in the Decarbonization of Industry" (presentation not available)

• Luciano DE Tommasi (IERC) "Energy efficiency in the commercial rented sector and verification of rebound effect after PV system installation in shopping center in Spain"

• Maria Beatrice Andreucci (UNIROMA1) "Promoting reduction of energy demand and climate adaptation through integrated simulation tools and indicators: A recent case study"

• Giovanna Cavazzini (UNIPD) "The need of flexibility in the hydropower sector: an European overview"

Energy Sufficiency:

• Vito Di Noto (UNIPD) "Production, distribution and applications of H2 in a clean energy system" (presentation not available)

• Tareen Muhammad Umair (ULiège) "A low-demand energy scenario for Europe modelled in PyPSA-EUR"

• Romain Mauger (CIIAE) "For an Energy Sufficiency First Principle in EU energy law"