The THUMBS UP project facilitate the development of innovative, thermal energy storage technologies that can easily be integrated into buildings to increase their energy efficiency and grid flexibility.


A consortium of 20 organisations from across europe is lead by Veolia Espania and brings together leaders in thermal energy storage research, innovative technology development and thermal storage manufacturing companies to deliver cutting edge thermal energy storage at three demonstration sites from northern and southern europe. 

THUMBS UP aims to overcome the limitations of existing building-integrated technologies by increasing energy density and reducing the intensity factors of capital investment in this sector. The project will promote complementary digital innovations aimed at simulating, optimising and maximising the technical, operational and economic benefits of the proposed storage solutions. 

THUMBS UP - Thermal energy storage solUtions to optimally Manage BuildingS and Unlock their grid balancing and flexibility Potential 

Funding: European Union’s Horizon Europe research and innovation programme under Grant Agreement No. 101096921 
Duration: 1/01/23 → 31/12/26
Budget: Euro 7.6 million (with funding of approximately Euro 6.4 million) 
Coordinator: Veolia Servicios Lecam Sociedad Anonima Unipersonal (ES) 
Partners: algoWatt; CARTIF; Consiglio Nazionale delle Ricerche; Centre for Research & Technology Hellas (CERTH); Economic and Social Research Institute (ESRI); Gradyent; Grid Singularity; i-TES; Johanneberg Science Park; Kelvin; NanoPhos; Politecnico di Torino; Pluss Advanced Technologies B.V.; Sorption Technologies; Ubitech Energy and the universities of Birmingham, Genova, Lleida and Messina

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For more information, please contact;

Emilia Pisani , Communications Officer

+46 709 74 21 96 LinkedIn

For more information, contact;

Oliver Ingwall King, Project leader

+46 70 884 98 88 LinkedIn