O projeto de dessalinização da CPFL Renováveis e State Grid leva água potável para 800 residências nas comunidades indígenas de São Bento, Amarelão e Santa Terezinha no município de João Câmara no Rio Grande do Norte. O sistema de dessalinização, inteiramente automatizado, tem a capacidade de produzir 80 mil litros de água potável por dia, em torno de 20 litros-dia para cada habitante de três comunidades no município de João Câmara.

The project was designed to meet a water salinity level of more than 50%, which would even make it possible to treat seawater. As the water salinity index in the region where it is installed, on the banks of the RN-406, is 30%, there is a high degree of efficiency and minimal waste generation (0.25%/year). The desalination system is powered by photovoltaic (solar) energy, which allows it to operate independently. Waste generation is minimal or insignificant (only chemical product packaging). The impact on greenhouse gas emissions is zero, more than 15 tons of CO2 emissions are avoided annually and when there is spare energy, the clean energy is injected into the grid.