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What are the technology groups?

The GTT portal identifies 12 main technology groups, based on the technologies provided in the L2-Tech List, in order to create a more transparent and user-friendly website. Some of the groups (like the fuel cells technology group) cover only one technology, while others contain more. The renewable energy equipment group, for example, comprises a combination of renewable technologies such as solar power and water heating, geothermal power generation, biomass and biogas power generation.