I expect World Fossil fuel output to peak in 2025. If the World economy continues to grow in the future, a gap between Energy produced from all sources (including non-fossil fuels) and the demand for Energy will grow over time. If the gap between energy demand and energy supply is not filled by growth in non-fossil fuel energy sources there must be lower demand for energy due to reduced economic growth rates. Energy Demand The analysis that follows attempts to determine demand for primary energy under the assumption that energy supply is plentiful so that supply is constrained by demand. The consumption of primary energy is related closely to Real GDP (constant US dollars at market exchange rates). In 1988 Real GDP was about 35 trillion (T) 2010 US $ and in 2000 Real GDP […]