E3X Technology: Ceramic Revolution in Power Transmission That Increases Capacity by 25% Without New Towers

An advanced ceramic coating solution is being tested in inland São Paulo and could transform the Brazilian electricity sector

The Brazilian electricity sector has just received an unprecedented technology in the country that promises to significantly increase power transmission capacity without the need to build new infrastructure. The E3X technology, applied for the first time nationally in a pilot project, uses a special ceramic coating on the surface of transmission cables to increase current capacity by up to 25%.

Technological Innovation: How the E3X Ceramic Coating Works

The E3X technology represents an advance in materials engineering based on applying a thin ceramic coating on the surface of transmission conductors. This special system helps dissipate heat and increases the capacity to transport energy without increasing the physical structure of transmission lines. The applied ceramic has thermal properties that optimize heat transfer, allowing the cable to operate at lower temperatures while transporting higher electrical current.

The main technological benefits include capacity increase of up to 25% under certain conditions, with about 8% in the pilot project. The cable receives less solar heat and generates less heating, eliminating the need to build new towers or replace conductors. The technology reduces the environmental impact of infrastructure expansion and is applied through precision robotic operation, demonstrating the integration between advanced materials and industrial automation.

The first field application occurred on a transmission line section in the municipality of Rosana, São Paulo, consolidating a technological milestone for the Brazilian electricity sector.

Technological Advancement in Tests: Porto Primavera and Rosana

The tests are being conducted between the São Paulo municipalities of Porto Primavera, where the Porto Primavera Hydroelectric Plant is located, and Rosana, situated 366 km from São Paulo capital. The expectation is that, if the tests are approved, the proposal will move to ANEEL regulation, the National Electric Energy Agency, allowing its adoption on other transmission lines in the country.

Technological Impact on the Brazilian Electricity Sector

This technology represents a strategic solution for the Brazilian electricity sector because it optimizes existing infrastructure, increasing capacity without investing in new towers. It accelerates energy transition, allowing more renewable energy to be transmitted from the same infrastructure, and reduces costs by avoiding billion-dollar investments in network expansion. Additionally, it minimizes environmental impact with less construction of new transmission lines.

With Brazil planning to invest R$ 120 billion in transmission systems by 2035, technologies like E3X can offer more efficient and sustainable solutions for expanding the national electrical grid. The implementation of this advanced ceramic technology demonstrates how innovations in materials can solve infrastructure challenges more intelligently and economically.

Technological Validation and Future Perspectives

In the Rosana project, an approximate 8% increase in current carrying capacity is expected, a result that will be validated throughout system operation. This solution advances specifically to increase the current capacity of overhead transmission lines without the need to construct new assets.

If the tests are confirmed as positive, Brazil could become one of the first countries in Latin America to use this technology at scale, positioning its electricity sector at the technological frontier of power transmission. E3X represents the next step in the technological evolution of transmission lines, combining materials engineering, advanced thermics, and industrial automation.

Fonte: Prysmian Brasil - Tecnologia E3X | Projeto-piloto ISA Energia Brasil | Notícias oficiais: cenarioenergia.com.br e gov.br/mme

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