The energy utilization is modeled in order to appraise its influence on the emission level
of the diesel generators, which is the major source of electricity supply in Nigeria. . The linear regression method is employed for the characterization of the energy utilization index. Also, correlation analysis is employed to investigate the interdependence of carbon footprint and normalized energy consumption. Results show a significant correlation between energy consumption per unit guest room and the carbon dioxide emission level. This work develops a carbon footprint protocol for the hotel industry in Nigeria by recommending that the annual energy consumption per unit guestroom should be kept at a value not more than 40.278 MWh/guestroom while the annual energy consumption per unit equivalent guest room should be less than 62.861 MWh/equivalent guestroom.