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This manuscript presents an analysis of energy consumption and CO2 emissions at Constantine 3 University. The study is primarily based on data collection through an energy inventory of electrical equipment, gas equipment, and lighting for a comprehensive assessment of the university’s energy consumption, which is considered the largest university hub in Africa. The obtained data were compared to the electricity and gas bills to verify the compatibility between consumption calculations and the kilowatt-hours billed to the university, thus classifying the faculties from the highest to the lowest energy consumer. The results show that the Faculty of Architecture consumes the most energy when all its existing equipment is functioning. However, the Faculty of Medicine and the Rectorate are the biggest consumers of energy when the equipment is running, and therefore, emit the most greenhouse gases. This study highlights the importance of conducting an energy audit, as Algerian regulations mandate an audit for tertiary institutions only when consumption exceeds 500 TOE (Tonne of oil equivalent). After analyzing Constantine 3 University’s energy consumption, the estimated consumption is 2047 TOE, which complies with Algerian energy regulations.
Keywords: energy consumption, CO2 emissions, Algerian policy, energy efficiency, Constantine 3 University