A method for constructing scenarios of future world energy demand

The calculations for primary energy used in the construction of the Intergovernmental Panel on Climate Change scenarios of world primary energy demand in 2100 are not transparent enough to follow the logic easily. The proposed method is completely transparent and develops sufficient detail to highlight specific energy supply problems requiring engineering knowledge and expertise for solution. The main differences are (1) changing emphasis from the forms of final energy as non-commercial, solids, liquid, gas and electricity to end use services such as transportation, residential, industrial, commercial and electricity, and (2) a table of conversion efficiencies from primary to final energy. (author)