The Assú Sol photovoltaic complex, which comprises 16 plants and represents the largest operational solar project worldwide from ENGIE, is now completed and fully operational. The Group got the approval from Brazilian authorities on 13 February 2026, and the construction work finished in December 2025 with a total investment amounting to BRL 3.3 billion.
A massive industrial project rolled out with perfect implementation
Assú Sol photovoltaic complex, which is built on a 2,344-hectare site in the State of Rio Grande do Norte in Northeast Brazil, is expected to generate enough electricity to meet the all-year-round requirements of a city that houses 850,000 people.
The project has in it over 1.5 million photovoltaic modules, cabling that’s around 12,000 km, and also 53 km in terms of internal access roads.
Completed through a period of 30 months, which is exactly on time, within budget, and also in full compliance with the stringent safety norms, the construction of the complex went on to create over 4,500 direct jobs and depended on the advanced technologies that have not been deployed many times at this kind of scale. This includes drone-based aerial mapping along with automated graders, which are integrated with 3D models, and also a dedicated automatic pile driving machine especially for solar plants, which is rolled out in Brazil for the very first time. These solutions help with a more accurate and faster as well as safer implementation while making sure to enhance both industrial as well as environmental performance.
A positive impact for local communities that’s lasting
Apart from contributing toward decarbonization and also making the energy security much stronger in the countries where it functions, the Group also stands committed to making sure that local integration along with shared socioeconomic development around its project takes place.
When we talk of the Assú region, ENGIE has gone on to carry out umpteen initiatives, which include the construction of a school, along with a health center as well as multisport facilities, besides working on enhancement in access to water as well as donation when it comes to agricultural equipment.
A prominent asset in ENGIE’s development in Brazil
ENGIE in Brazil goes on to work on a completely renewable installed capacity of 15.7 GW, which comprises hydropower, onshore wind as well as solar assets. The Group also boasts of 3,200 km of transmission lines along with 22 substations across Brazil.
It was in December 2025 that the Serra do Assuruá wind complex, which is located in Gentio do Ouro in the Bahia state in Northeast Brazil, went on to become completely functional. Having a capacity of 846 MW, the Serra do Assuruá wind complex is the largest onshore wind farm in operation worldwide of the group. ENGIE has also begun the first 334 km segment as far as the Asa Branca transmission network in Bahia is concerned. It is a strategic infrastructure that is most likely going to go beyond to over 1,000 km through the States of Minas Gerais. Espírito Santo and, of course, Bahia.
Apart from completing the leftover 660 km of this project, the group is also executing the Graúna project. This includes construction of 780 km of transmission lines that are laid between Paraná and Santa Catarina.
According to the Senior Executive Vice President in charge of Renewable and Flexible Power of ENGIE, Paulo Almirante, “Assú Sol demonstrates our ability to deliver large-scale renewable projects with efficiency and industrial excellence. Commissioning our largest solar complex worldwide—on time, on budget, and in close collaboration with local communities—reflects the know-how of our teams and the strength of our renewable strategy in Brazil and internationally. “
