This article examines the implementation of Demand Response (DR) in the Brazilian electricity sector, highlighting its crucial role in optimizing energy consumption and integrating renewable sources. It emphasizes the importance of establishing an accurate baseline for the success of DR programs, ensuring reliable measurements of actual consumption. Additionally, the paper discusses the need to revise regulations, such as the minimum offer size, to encourage participation from smaller industries. The findings suggest that DR is an efficient alternative for managing peak demand, reducing reliance on thermal power plants, which is particularly relevant in Brazil. This approach offers significant benefits, including enhanced energy efficiency and sustainability, proving to be a valuable tool for the country's future energy landscape.