COVID-19 has spread quickly to several countries following the initial outbreak of the disease. As a consequence, several measures have been taken to mitigate the virus spread worldwide. In the city of Florianópolis, in southern Brazil, a strict lockdown was implemented on 16 March 2020. Although commercial activities were allowed to resume 21 April, a complete lockdown of municipal public buildings (e.g., administrative buildings and schools) lasted up to 5 August 2020. Reports in the literature emphasize the influence of occupant presence and actions on energy use in buildings. Therefore, the objective of this study was to assess the impact of the COVID-19 lockdown on the electric energy use of municipal buildings in Florianópolis. A large database with monthly electric energy use data was provided by the City Hall and analyzed. Firstly, the consumer units were grouped into three categories: systems, services and buildings. This revealed that buildings were directly affected by the lockdown measures, but systems and services were not. Therefore, an in-depth evaluation of health centers, administrative buildings, elementary schools and nursery schools was conducted and mean electric energy reductions of 11.1 %, 38.6 %, 50.3 %, and 50.4 %, respectively, were observed. Although it may initially seem unexpected, municipal health centers had a small electric energy use reduction, because they were not directly responsible for COVID-19 treatment, as patients were forwarded to specific facilities. Walkthroughs and energy audits were performed in an administrative building, an elementary school, and a nursery school, to gain a deeper understanding of the consumption trends. It was observed that municipal buildings present a basal energy use intensity even when the buildings are unoccupied. Energy audits verified that stand-by loads and vital loads, such as lighting for safety and computer servers, play a key role in this share of energy use.

COVID-19 在最初爆发后迅速传播到多个国家。因此，已采取多项措施来减轻病毒在全球范围内的传播。巴西南部的弗洛里亚诺波利斯市于 2020 年 3 月 16 日实施了严格的封锁。尽管商业活动于 4 月 21 日获准恢复，但市政公共建筑（例如行政大楼和学校）的全面封锁一直持续到 8 月 5 日2020. 文献报告强调居住者的存在和行为对建筑物能源使用的影响。因此，本研究的目的是评估 COVID-19 封锁对弗洛里亚诺波利斯市政建筑电能使用的影响。市政厅提供了一个包含每月电能使用数据的大型数据库并进行了分析。首先，消费者单位分为三类：系统、服务和建筑物。这表明建筑物直接受到封锁措施的影响，但系统和服务没有。因此，对保健中心、行政大楼、小学和托儿所进行了深入评估，观察到平均电能分别减少了 11.1%、38.6%、50.3% 和 50.4%。尽管最初看起来可能出乎意料，但市政卫生中心的电能使用量略有减少，因为他们不直接负责 COVID-19 治疗，因为患者被转移到特定设施。在一所行政大楼、一所小学和一所托儿所进行了走查和能源审计，以更深入地了解消费趋势。据观察，即使建筑物无人居住，市政建筑也呈现出基础能源使用强度。能源审计证实，备用负载和重要负载（例如安全照明和计算机服务器）在这部分能源使用中发挥着关键作用。