energy congress energy conservation energy conservation and environmental protection energy conservation measures energy construction energy consultant energy consultants energy consulting energy consumed energy consumer energy consumers energy consuming energy consumption energy consumption by fuel energy consumption can energy consumption data energy consumption per capita energy consumptions energy contained energy content energy contract energy contracts energy contribution energy control energy conversion energy conversion efficiency energy conversion system energy converter energy converters energy cooperation energy cooperative energy cooperatives energy core energy corporation energy corridor energy cosmic energy cost energy cost savings energy costs energy could energy council energy created energy creates energy credits energy crisis energy crop energy crops energy currency energy customers energy cycle energy data energy day energy days energy deal energy deals energy debate energy decreases energy deficiency energy deficit energy delivered energy delivery energy demand energy demands energy democracy energy demonstration energy dense energy densities energy density energy department energy dependence energy dependency energy dependent energy depends energy deployment energy deposition energy derived energy design energy development energy developments energy device energy devices energy diagnosis energy dialogue energy difference energy directed energy directly energy discharge energy dispersion energy dispersive energy dissipated energy dissipation energy distribution energy diversification energy division energy do energy do you energy does energy does not energy drain