EMAE, formally known as Empresa Metropolitana de Águas e Energia S.A., is a Brazilian energy and water resource management company headquartered in São Paulo. Established in 1998 as the successor to the former Light and Eletropaulo operations, the company specializes in renewable hydroelectric power generation and the management of strategic hydraulic systems that support the Greater São Paulo region and surrounding areas. EMAE operates hydroelectric plants, dams, reservoirs, and water control infrastructure, including major assets associated with the Billings and Guarapiranga systems, contributing to both energy security and flood control. The company is also expanding its focus on sustainability and energy transition initiatives through investments in renewable energy projects, including floating solar generation. With a long-standing engineering legacy and commitment to environmental stewardship, EMAE plays an important role in supporting urban infrastructure, sustainable development, and public-private partnership initiatives in Brazil.