Power transmission and distribution engineering
Advanced engineering for transmission lines and power systems
We design overhead, underground, and underwater solutions with technical rigor, an integrated view of the project, and the capacity to address highly complex challenges.
- of designed lines with completed construction
- 3,000+ km
- line projects designed and implemented
- 250+
- of experience among our senior engineers
- 35+ years
Solutions
Engineering organized around the project
Studies, consulting, design, and implementation support for overhead, underground, and underwater lines — from routing to integration with other power-system assets.
- 01
Overhead transmission lines
Concept and design development for geometry, structures, conductors, insulation, grounding, crossings, and construction.
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Underground lines
Studies and design for underground circuits covering routing, thermal capacity, arrangements, crossings, and urban interfaces.
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Underwater cable systems
Studies and design for cable systems in aquatic environments: routes, crossings, sizing, installation, protection, and environmental interfaces.
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Routing and feasibility
Comparison of corridors and alternatives through an integrated view of technical, territorial, environmental, and construction constraints.
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Basic and detailed design
Development of assumptions, calculations, drawings, schedules, specifications, and documents for procurement and construction.
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Structures, foundations, and uprating
Structural verification, foundation concepts, and studies to adapt assets to new loading conditions.
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Owner’s engineering
Independent technical support for requirements, interfaces, document reviews, risks, decisions, and supplier oversight.
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Special studies and optimization
Modeling, numerical analysis, parametric studies, and optimization for problems that established standards alone cannot resolve.
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Techno-economic consulting
Structured comparison of alternatives, requirements, risks, investment, and impacts on construction and operation.
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How we work
Technical depth with a project-wide perspective
Practical experience and multidisciplinary integration guide technical, construction, and economic decisions at every stage.
- 01
Multidisciplinary integration
Electrical, civil, structural, and geotechnical assumptions handled together so the solution stays coherent end to end.
- 02
Constructability from concept stage
Every decision considers access, construction sequence, site resources, maintenance, and local constraints.
- 03
Rigor for non-standard problems
Explicit assumptions, models, and sensitivities when the answer requires analysis beyond conventional routines.
- 04
Techno-economic consistency
Alternatives compared by performance, risk, and investment impact — not just the lowest initial cost.
Numerical analysis and complex problems
When a standard solution is not enough
Problems with strong interaction among variables, geometries, materials, loads, or constraints require purpose-built models, systematic exploration of alternatives, and traceable assumptions.
Decision-oriented modeling
The level of fidelity is set by the engineering question to be answered.
Parametric studies
Sensitivities, limits, and dominant variables evaluated before selecting an alternative.
Optimization with real constraints
Solutions compatible with safety, standards, fabrication, construction, and operation.
Experience
Lines from 69 kV to 500 kV, in Brazil and abroad
A selection of projects GPAT has worked on.
- AccionaLT 500 kV Sento Sé I – Ourolândia II (CS/CD)88 km
- AtlasLT 500 kV Boa Sorte 9 a 23 – Paracatu IV60 km
- CoelbaLD 138 kV Rio Grande II – Rio das Éguas126 km
- CoelbaLD 138 kV Irecê (Chesf) – Bonito (C2)92 km
- AXPO/SGTR1480 Bickigen – Mettlen53.4 km
- AuroraLT 230 kV Rosa do Jericó – Jaíba9 km
Who we work with
Sectors served
- Transmission companies and utilities
- Distribution utilities
- Renewable generation
- EPC contractors and integrators
- Infrastructure investors
- Industries with high-voltage assets
- New project developers
- Power-sector authorities and organizations
Does your project require analysis beyond a standard solution?
Tell us the project stage and the technical challenge. Our engineering team replies directly.