The European Community Energy R & D Programmes.- Energy Conservation.- Energy Savings in Buildings.- Use of Heat Pumps.- Urban Transport.- Recovery of Residual Heat.- Recycling of Materials.- Production of Energy from Waste.- Industrial Processes.- Development of Methods of Accumulating Secondary Energy.- Second Programme.- Production and Use of Hydrogen.- Thermochemical Production of Hydrogen.- Electrolytic Production of Hydrogen.- Hydrogen Use, Storage and Transportation.- Second Programme.- Solar Energy.- Solar Energy Applications to Dwellings.- Thermomechanical Solar Power Plants.- Photovoltaic Power Generation.- Photoelectrochemical, Photochemical and Photobiological Processes.- Energy from Biomass.- Solar Radiation Data.- Second Programme.- Geothermal Energy.- Acquisition and Collection of Existing and New Geothermal Data.- Prospecting Methodology.- Utilisation of Hot Water Sources (Low Enthalpy).- Utilisation of Steam Sources (High Enthalpy).- Hot Dry Rocks.- Second Programme.- Energy Systems Analysis and Strategy Studies.- First Programme.- Second Programme.- Conclusions.- Appendix 1 Conferences and Publications arising out of the First Energy R & D Programme.Springer Book Archives