Summary
In the context of accelerated energy transition, the expansion and modernisation of power transmission infrastructure have become a critical issue for large, interconnected power systems. Brazil has experienced increasing investment in distribution and transmission assets, driven by the integration of renewable energy sources located far from major load centres and by growing urban and environmental constraints.
Read more Read lessThis paper presents a comparative assessment of overhead transmission lines and insulated underground cable systems, focusing on recent Brazilian experience. Technical performance, operational aspects, environmental and social impacts, economic considerations, and regulatory milestones are discussed, with explicit reference to projects at 138 kV, 230 kV, 345 and 525 kV. Particular attention is given to hybrid high voltage lines combining overhead and underground sections, which have emerged as a pragmatic solution within the Brazilian planning framework for distribution and transmission as it represents an attractive cost x benefit solution.
Additional informations
| Publication type | Session Materials |
|---|---|
| Reference | B1_11025_2026 |
| Publication year | |
| Publisher | CIGRE |
| Country | Brazil |
| Study committees | |
| File size | 1 MB |
| Price for non member | 30 € |
| Price for member | 30 € |
Authors
DAMASCENO Carla - Consultant Brazil; ALMEIDA Daniel Maia de - PRYSMIAN Brazil
Keywords
Overhead Lines, Underground Lines, Comparative Analysis, Challenges, Brazilian Scenario
