It was in the Babilônia favela, in Rio de Janeiro, that Revolusolar emerged in 2015, born from a collective desire to build sustainable solutions from within the community. The initiative grew alongside the territory and soon expanded to the neighboring Chapéu Mangueira. The first installations took place in local establishments, and by 2018, trained residents began working as solar installers, bringing this technology to community spaces such as the Tia Percilia School. The work gained strength with the creation of the Percília and Lúcio Renewable Energy Cooperative — the first solar energy cooperative in a Brazilian favela — solidifying Babilônia and Chapéu Mangueira as pioneering territories for popular solar energy in the country.

With solar panels installed at strategic community points — such as the sports court, the residents' association, and public schools — the cooperative began supplying clean and more affordable energy to dozens of local families. In 2023, new panels were added, expanding the number of beneficiaries. This project is a milestone for Rio de Janeiro and an inspiring model for advancing energy justice in favelas and underserved communities across Brazil.