Electricity consumption in electric showers in São Paulo: What to expect from climate change?

Authors

DOI:

https://doi.org/10.46421/encacelacac.v18i1.7083

Keywords:

Electric showers, Electricity consumption, Sustainability, Simulation, Future climate

Abstract

Electric showers account for much of residential electricity consumption, especially in the South and Southeast. However, there are few studies on computer simulation of this system under different conditions. This study evaluates electric showers' current and future electricity consumption based on operational parameters and climate variables, using Python scripts and future climates. The main result obtained is electricity consumption in São Paulo, considering different simulation variables. In the pessimistic emissions scenario, where the electric shower is switched off only when the air temperature is above 30 °C, an average reduction of 45 kWh/person/year is observed, considering a daily shower of eight minutes. The results indicate impacts on residential consumption, and it can be concluded that operational variables and future climates impact water heating and electricity consumption. Future studies can better explore this connection.

Author Biographies

Igor Catão Martins Vaz, Universidade Federal de Santa Catarina

Mestre em Engenharia Civil e aluno de doutorado pela Universidade Federal de Santa Catarina.

Eugénio Miguel de Sousa Rodrigues, Universidade de Coimbra

Ph.D. em Sistemas de Energia Sustentável (programa MIT-Portugal/UC). Atualmente, ele leciona na Universidade de Coimbra como professor assistente.

Enedir Ghisi, Universidade Federal de Santa Catarina

PhD em Engenharia Civil e Professor titular na Universidade Federal de Santa Catarina.

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Published

2025-08-16

How to Cite

VAZ, Igor Catão Martins; RODRIGUES, Eugénio Miguel de Sousa; GHISI, Enedir. Electricity consumption in electric showers in São Paulo: What to expect from climate change?. In: ENCONTRO NACIONAL DE CONFORTO NO AMBIENTE CONSTRUÍDO, 18., 2025. Anais [...]. [S. l.], 2025. DOI: 10.46421/encacelacac.v18i1.7083. Disponível em: https://eventos.antac.org.br/index.php/encac/article/view/7083. Acesso em: 3 may. 2026.

Issue

Section

5. Eficiência Energética