All official European Union website addresses are in the europa.eu domain.
See all EU institutions and bodies
Infographic (static)
The infographic shows the technology readiness levels of selected decarbonisation levers relevant for industry.
The classification of technology readiness level provided by the Joint Research Centre (JRC) to the EEA by email, June 2026 as well obtained from the IEA ETP Clean Energy Technology Guide. The guide is an online, freely available database tracking clean energy technology developments globally, put together by the International Energy Agency (IEA) available at: https://www.iea.org/data-and-statistics/data-tools/etp-clean-energy-technology-guide. TRLs provide a standardized measure of technological maturity across a spectrum from early research to full market transformation. (4)TRLs range from: concept (including TRL1-Initial idea, TRL2-Application formulated and, TRL3-Concept needs validation); small prototype (including TRL4-Early prototype); large prototype (including TRL5-Large prototype and TRL6-Full prototype at scale); demonstration (including TRL7-Pre-commercial demonstration and TRL8-First of a kind commercial); market uptake (including TRL9-Commercial operation in relevant environment and TRL10-Integration needed at scale); mature (including TRR11-Proof of stability reached).
