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Greendur

Start-Up

Spain

About

GREENDUR has developed a modular latent heat thermal energy storage (TES) system, the GreenBattery, a hot thermal battery for industrial process heat decarbonisation.

Based on phase change material (PCM) technology, the GreenBattery stores 2 MWh of thermal energy and can release 500 kWt to deliver clean industrial heat up to 350°C on demand.

GreenBattery deployments and demonstrations:
🏗️ Paint curing oven for Comansa crane manufacturer (160 kWh pilot, 2023)
🔋 2 MWh commercial unit: design complete, build targeted Q4 2026
📈 LOIs from Comansa, ROVALMA, S.A., VIRTO Group & Gonvarri Industries

CORPORATE HISTORY
2020 -- GREENDUR founded by Jesús Castillo Yera in Pamplona, Spain
2021 -- @CDTI_innovacion NEOTEC grant and Enisa | Empresa Nacional de Innovación participatory loan secured
2021 -- Sodena | Desarrollo de Navarra - Nafarroako garapena regional support
2021 -- Joins Centro Europeo de Empresas e Innovación de Navarra (Centre Europeo de Empresas e Innovacion), Pamplona
2022 -- GreenBattery patent filed (Modular Thermal Energy Storage System)
2023 -- 160 kWh/20 kW prototype. Comansa paint-curing oven; >90% RTE
2023 -- Solar Impulse Foundation Efficient Solution label awarded
2024 -- EIC - European Innovation Council SynergistEIC acceleration prog
2024 -- LOIs signed from four industrial clients
2026 -- Relocates to new HQ at Poligono Industrial de Areta, Huarte, Navarra

Representatives

Ricardo Silva

CTO

Greendur