Energy Analysis of the Faculty of Technology Using RETScreen

Abstract

This study presents an energy audit of the Faculty of Technology at the University of Tlemcen to evaluate its energy performance and identify cost-effective efficiency measures. Electricity and natural gas consumption data from 2022–2024 were analyzed using regression modeling and RETScreen software. Results showed that heating accounts for over 90% of total energy use, with significant losses from poor insulation, infiltration, and inefficient controls. Six Energy Conservation Measures were proposed, achieving potential savings of 25% in energy use and notable reductions in energy losses. The findings demonstrate that targeted retrofits, even under subsidized tariffs, can deliver substantial technical, financial, and environmental benefits