Solar Plants
Drainage and cable protection ensuring fault-free solar generation
The Challenge
Photovoltaic parks require three critical underground infrastructures operating in parallel: mechanical protection of buried DC and MV cables, fast platform drainage and tracker foundation stabilization. When any one fails, operations stop — and every hour of downtime in a 100 MW solar farm costs between R$ 8,000 and R$ 15,000 in lost revenue.
Techduto has been supplying the complete HDPE infrastructure for the sector for over a decade, with technical participation in drafting ABNT NBR 15715 and involvement in more than 260 solar farms in Brazil.
Techduto Solutions for Solar Plants
Recommended lines, uses, and key features
| Product Line | Use in Solar Plants | Technical Advantage |
|---|---|---|
| Techduto DW (double wall) | Main trunk for DC and MV cables in buried trenches | Smooth interior → 30% faster cable laying; corrugated outer wall SN 8 |
| Techduto NBR (UV line) | Sections exposed to sun: tracker, string box, solar roof | Exclusive anti-UV additive; compliant with ABNT NBR 15715; 25+ years lifespan |
| Techduto NBR (AC line) | Sections near inverter, transformer, electrical room | Flame retardant additive (self-extinguishing); reduces installation thermal risk |
| Techdreno DW | Underground drainage for platforms, accesses, and channels | 30% higher flow rate than traditional corrugated; frees tables in hours after rain |
| Geotêxtil Bidim | Separation, filtration, and protection of tracker foundations | Distributes load and separates layers — proven 25+ years in BR projects |
| Techduto Tape | Sealing connections between conduits and accessories | Permanent adhesion — watertightness against water and insects |
Challenges & Solutions
How Techduto solves each challenge in Solar Plants
DC/MV cables vulnerable to impact
Techduto DW double-wall conduit absorbs excavation impacts, root pressure and backfill loads, protecting solar cables for the entire project lifetime.
Flooded platforms halt trackers
Techdreno DW removes soil water from the table in hours, preventing tracker bogging, foundation erosion and generation loss.
UV exposure on aerial sections
Techduto NBR UV-additive line maintains mechanical integrity even on sun-exposed sections — string box, tracker, rooftop.
Invasive corrective maintenance
Smooth interior of Techduto DW allows cable replacement without digging a new trench — reduces maintenance time by up to 80%.
How We Apply
Techduto 3-step methodology
Engineering & Specification
Solar project analysis (power, table layout, tracker type, topography) defines cable cross-sections, trench depth, diameters and additive line (UV/AC) per section.
Logistics & Ready Stock
Production in SP, PE and MT with ready stock for delivery across Brazil. Rolls up to 300 m reduce field joints and speed installation.
Field Support
Techduto engineers accompany installation at large-scale solar farms: connection sealing with Techduto Tape, platform drainage with Techdreno DW and reinforcement with Bidim.
FAQ
Common questions about Solar Plants