An Approach for Water and Energy Savings in Public Buildings: A Case Study of Brazilian Rail Company

Water scarcity is a current problem in many parts of the planet and there worldwide concern about water availability to meet future demand. In countries like Brazil, where most electricity produced by hydroelectric power plants, directly impacts energy production. The water–energy nexus related impacted CO2 emissions its climate consequences, which calls broader approach: energy–carbon–water nexus. this context, Sustainable Energy Consumption (SWEC) Program was developed mitigate supply problems railway company Brazil. actions took place four main areas: (a) users conscientization, (b) consumption diagnosis, (c) indicators for evaluating consumption, (d) evaluation implementing alternative cleaner sources. per capita were reduced 10% 19%, respectively. Permanent results achieved SWEC Program, such as acquisition two photovoltaic systems with total capacity 96.5 kWp. investment made provided an average monthly reduction 56% 2022. This work contributed UN Agenda 2030 findings may help companies industries, other institutions, universities schools, improve their consumption.