doe eia m072 2003 2 model documentation report system for the analysis of global energy markets sage volume data implementation guide august office integrated and forecasting information administration us department washington dc this was prepared by independent statistical agency within contained herein should not be construed as advocating or reflecting any policy position other organization contents 1 introduction 7 general description 8 regions sectors 3 structure 9 4 sources units measurement 11 base year calibration transportation 13 services projections 14 fuels technologies 15 existing new 16 technology naming conventions 19 5 user defined market share parameters constraints 20 relative endogenous cost service exogenous expert judgment 21 residential commercial agriculture 22 23