Hydrogen and its competitors, 2004
Hydrogen and its competitors, 2004
Hydrogen and its competitors, 2004
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Risø Energy Report 3<strong>Hydrogen</strong> system energy technologies 235<strong>Hydrogen</strong> system energy technologies inglobal, European <strong>and</strong> Danish perspectiveHANS LARSEN, ROBERT FEIDENHANS'L, LEIF SØNDERBERG PETERSEN, RISØ NATIONAL LABORATORYThe following chapter presents the status of R&D inprogress for essential elements in the hydrogeneconomy. Selection is based on evaluation of technologies<strong>and</strong> systems needed to phase in the hydrogeneconomy, <strong>and</strong> characterized by requiring large researchefforts in a longer time scale. The presented technologies<strong>and</strong> systems are assessed with respect to status, trends<strong>and</strong> perspectives for the technology together with internationalR&D plans.