I. The Analysis of Energy Demand: An Overview.- 1. Concepts and Methods.- 1.1. Usual Concepts.- 1.2. New Concepts.- 1.3. Methods of Analysis.- 2. The Role of Prices.- 2.1. Micro-Economic Aspects.- Final Consumers and Energy Prices.- Intermediate Consumers and Energy Prices.- 2.2. Macro-Economic Aspects.- II. Energy Demand in the Residential and Tertkiy Sector.- 1. Historical Survey.- 1.1. Overall Energy Consumption 1950-1978.- 1.2. Energy Needs in Dwellings.- Space Heating.- Space Heating: Conclusions.- Water Heating.- Cooking.- Household Electrical Appliances and Lighting.- Air Conditioning.- 1.3. Energy in the Tertiary Sector.- 1.4. Impacts of the 1973/1974 Oil Crisis.- 2. Long-Term Prospects.- 2.1. New Constructions.- 2.2. Household Appliance Ownership.- 2.3. Trends in Insulation.- Existing Dwellings.- New Constructions.- 2.4. Prospects of Space and Water Heating Techniques.- Conventional Systems.- Solar Systems.- Heat Pumps.- District Heating.- New Heating Techniques: Conclusions.- 2.5. Technical Changes with Electrical Household Appliances.- 2.6. The Conditions of Technical Change.- The Actors and Their Behaviour.- Institutional Structure and Relations Between Actors.- III. Energy Demand in the Transport Sector.- 1. Historical Survey.- 2. Passenger Transport.- 2.1. Main Historical Trends.- 2.2. Travel Needs.- Home/Work Trips.- Other Urban Trips.- Holiday Trips.- Week-End Trips.- Social Trips.- Professional Trips.- 2.3. The Private Car.- Pattern of Use.- Socio-Economic Aspects.- Technical Characteristics and Specific Energy Consumption.- 2.4. Public Modes of Transport.- Supply.- Passenger Mobility by Public Modes.- Technical Characteristics and Specific Energy Consumption.- 3. Freight Transport.- 3.1. Historical Trends.- Freight Traffic and Industrial Growth.- Freight Transport, Distances and Industrial Structures.- Traffic Structure and Modal Distribution.- 3.2. Technical Characteristics and Specific Energy Consumption.- Road Transport.- Railways.- Waterways.- 4. Long-Term Prospects.- 4.1. Impacts of the 1973/1974 Oil Crisis.- The Price-Effect.- Energy Conservation Policies.- 4.2. Long-Tenn Prospects.- Urban Development and Passenger Transport.- Industrial Structure and Freight Transport 134Contents.- IV. Eneigy Demand in the Industrial Sector.- 1. Historical Survey.- 1.1. OveraU Energy Use: 1950-1977.- 1.2. Energy Uses in the Industrial Sector.- 1.3. Energy Consumption and Structural Changes.- 1.4. Technical Trends and Energy Consumption.- Effect of Size and Concentration.- Substitution Between Energy Forms.- Substitution Between Processes in the Energy Intensive Industries.- Energy Efficiency Improvements in Processes.- Development of Mechanization.- 2. The Future Prospects.- 2.1. LongTerm Technological Changes.- The Industrialist' Behaviour and Technical Choices.- Improvement of Efficiency and Management of Industrial Installations....- Energy Form Substitutions.- Changes in the Energy Management of Industrial Sites.- Process Substitution.- 2.2. Long-Term Industrial Growth.- Major Past Trends.- Long-Term Prospects.- 3. The Steel Industry.- 3.1. Steel Production: Past Trends and Future Prospects.- 3.2. Energy in Steel Production.- Blast Furnace.- Direct Reduction.- Steel Making.- RoUing.- 3 3. Present and Future Changes in Production Processes.- Process Substitution.- Energy Savings in the Processes and Installations.- 4. The Cement Industry.- 4.1. Cement Production: Past Trends and Future Prospects.- 4.2. Energy in Cement Production.- 4.3. Present and Future Changes in Production Processes.- V. Forecasting Methods and Models.- 1. General Considerations on Energy Modelling.- 1.1. Classification of Energy Models.- 1.2. Analysis and Evaluation of Models.- 1.3. The Econometric Models.- 1.4. The Phenomenological (Technico-Economic) Models.- 1.5. Models of General Equilibrium.- 2. The MEDEE Approach: An Example of a Phenomenological Method.- 2.1. General Characteristics.- 22. The MEDEE Models.- 2.3. Scenario Design and Exploration of Long-Term Energy Demand.- 2.4. Use of the MEDEE Models.- Understanding Energy Demand Growth.- Conclusion: Prospects and Scenarios.- Socio-Economic Development and Energy Demand.- Technology and Energy.- Scenarios.- Technical Fix Scenarios.- Growth Scenarios.- The "Soft Energy Paths".- Energy Policy and Economic Development.- Appendix 1: Data on the Residential and Tertiary Sector.- Appendix 2: Data on the Transportation Sector.- Appendix 3: Data on the Industrial Sector.- References.