Holistic dEmand response Services for European residenTIAl communities. Ensuring secure and affordable energy supplies to EU citizens is a top priority and purpose of an integrated energy market. This is especially true in a world that is becoming increasingly connected, and where energy consumers demand innovative technologies. It is within this energy ecosystem that the EU-funded HESTIA project is developing a cost-effective solution for the next-generation demand-side response services. It aims to leverage consumer engagement, energy and non-energy services while engaging with residential consumers, who represent an untapped sector. The key will be to encourage residential consumers to engage in flexibility sharing and grid balancing. According to HESTIA, user-personalised services will help lay the foundation for an open marketplace and new grid reality. HESTIA is a H2020 funded project (2020-2023) under Grant agreement ID: 957823