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Item Open Access Andere Primärenergiequellen(1974) Voß, Alfred; Bundschuh, Vinzenz; Meliß, Michael; Oesterwind, DieterEs sollen im folgenden die Bedeutung der Geothermie, der Gezeiten-, Wind-, Wellen- und Gletscher- sowie der Meereswärme für die zukünftige Energieversorgung näher untersucht werden. Gemäß dem Stand des Wissens können dabei nur erste vorläufige Aussagen und Abschätzungen gemacht werden.Item Open Access Central versus decentral energy supply strategies for industrialized countries - soft or hard energy strategies?(1979) Düring, Klaus; Kollmann, Helmut; Oesterwind, Dieter; Orth, Detlef; Voß, AlfredOf late, the discussion about alternative ways of securing our future energy supply has received a new impulse by the introduction of the catchphrase "soft energy". This catchphrase is exemplary for widely-applied socio-political criticism of the general development of technology towards industrialized technology and for the pursuit of alternative life styles signified by decentralized, comprehensible technology. With reference to the field of energy, this is to be interpreted as the concept of an energy supply in which power is produced by a number of smaller plants at the point of consumption, and which for the main part makes use of regenerative energy sources, such as sun and wind and biomass.Item Open Access Nichtnukleare und nichtfossile Energiequellen und ihre Rolle für die zukünftige Energieversorgung(1975) Meliß, Michael; Oesterwind, Dieter; Voß, AlfredIt must be stressed that the assessment of the exploitation possibilities of the energy resources discussed in this paper requires further studies. With this proviso, the situation can be provisionally summarised as follows: The total potential of known geothermal steam sources is only 64 GW. Geothermal energy could therefore only make a significant contribution to covering the worldwide power needs if we succeed in exploiting dry geothermal reservoirs. Exploitation of tidal energy is limited to a few geographically favourable locations. The power generation potential at these locations is only about 64 GW. An important drawback of tidal power is discontinuous power generation. Large scale exploitation of wind, wave and glacier energy, and of ocean heat, requires solution of a number of technological problems. The environmental effects of exploitation of these energy resources are to some extent of a qualitatively different nature from those of operation of fossil-fuel-fired and of nuclear power plants. The scanty knowledge in this area often results in these effects being underestimated. In any case, however, it would be deliberately misleading to postulate that any form of power generation is possible without some detrimental effects on the environment. It may be stated in conclusion that, owing to their small potential or to the as yet insufficiently advanced technological development, none of the energy resources discussed in this paper can make a significant contribution to the solution of middle-term energy supply problems, i.e., to a rapid replacement of mineral oil and natural gas.