One of the deadliest pandemics in decades is COVID-19, when the world had shut down after the declaration of the World Health Organization. Like the rest of the world, schools in France closed on March 16th, 2020, and slowly reopened from May 11th, 2020. This paper aims to find the amount of energy usage influenced by the COVID-19 pandemics during first, second and post-second lockdown in terms of occupants’ presence. For this purpose, measured electricity data and actual electric bills of IUT de Nîmes were analysed. In 2019, this campus utilized 2000 MWh of energy cost around €150,000. The amount of energy usage declined by 9% and economized 16% compared to 2020. Most of these reductions came from the energy conserved during the first lockdown period. The heating energy supply was cut off completely after the school closure, while the electric energy remained on average of 36 MWh/month during unoccupied period. It is later can be explained by the presence of predominant electrical devices to maintain buildings and unplugged technical equipment which continued to leach out trace amounts of energy.