Home / Projects / Power & Energy / 150MW Utility-Scale Solar PV & CSP Hybrid Mountings in Malaysia: C5-M Marine-Grade Anti-Corrosion, Storm Wind-Uplift Rigidity, and Fast-Track TNB Grid Connection
150MW Utility-Scale Solar PV & CSP Hybrid Mountings in Malaysia: C5-M Marine-Grade Anti-Corrosion, Storm Wind-Uplift Rigidity, and Fast-Track TNB Grid Connection
Utilizing high-grade Zn-Al-Mg alloy steel with exceptional chloride and humidity barrier properties, forming a dense protective film that self-heals cut edges in aggressive tropical environments.
Project Overview
Situated across expansive tropical laterite plains in Malaysia, this mega renewable energy complex integrates high-density utility solar PV arrays with an industrial parabolic trough solar thermal (CSP) demonstration loop. For the EPC consortium, commercial viability hinged on the non-negotiable Commercial Operation Date (COD) set by utility off-taker Tenaga Nasional Berhad (TNB). In utility-scale solar, missing the grid-connection window triggers severe liquidated damages (LAD) and jeopardizes long-term Power Purchase Agreement (PPA) tariffs.
The primary structural anxiety was 25-year structural corrosion and tropical squall wind-uplift. Malaysia’s year-round +35°C temperatures, >80% relative humidity, and coastal salt fog corrode standard galvanized coatings rapidly, risking premature rust-through that voids warranties. Furthermore, sudden equatorial convective thunderstorms generate massive upward wind suction; if mounting tables or torque tubes deflect excessively, solar glass shatters and internal silicon wafers suffer catastrophic micro-cracking. For the adjacent parabolic trough loop, thermal expansion could distort the optical focal line without rigid structural framing.
Shijie Heavy Industry engineered a high-durability, precision mounting system. Utilizing high-strength cold-formed steel coated with advanced Zinc-Aluminum-Magnesium (Zn-Al-Mg, 310g/m²) self-healing alloy, Shijie guaranteed 25+ years of zero-maintenance corrosion resistance in tropical soils. The mounting tables were engineered with reinforced triangular bracing, holding dynamic wind-uplift deflection strictly within ≤ 1/250 to protect PV modules against micro-cracking. Fabricated with multi-axis CNC slotted punchings, over 8,500 tons of structural steel bolted together aloft with 100% field fit-up and zero welding. The mounting islands were handed over 28 days ahead of the grid energization milestone, securing tariff revenues seamlessly.
| Location | Tropical Plains, Peninsular Malaysia |
| Industry | Utility-Scale Ground Solar PV & CSP Mountings |
| Scale | 150MWp Capacity (~8,500 Tons Structural Steel) |
| Coating | Zinc-Aluminum-Magnesium (Zn-Al-Mg 310g/m²) |
| Wind Rigidity | Engineered for 42 m/s tropical gusts (≤ 1/250 def.) |
| CSP Precision | Parabolic focal line alignment held within ± 1.0 mm |
| Foundation | Heavy-duty driven C-posts & ground screws for red soil |
| Bolting | 100% Pre-Drilled Slotted Bolting (0% Field Welding) |
| Erection | 4 local workers erect 1 table (40 modules) in 25 mins |
| Advance | Handed over 28 Days Ahead of TNB COD Deadline |
Zn-Al-Mg Cut-Edge Self-Healing Defense
Utilizing high-grade Zn-Al-Mg alloy steel with exceptional chloride and humidity barrier properties, forming a dense protective film that self-heals cut edges in aggressive tropical environments.
Micro-Crack Resistant Torsional Rigidity
Engineered triangulated cold-formed framing with deep-flange purlins, suppressing dynamic fluttering under severe tropical squalls to protect delicate solar cells.
± 1.0mm Sub-Millimeter CSP Thermal Alignment
Parabolic mirror frames feature thermal-expansion decoupling bearings, maintaining laser-guided focal concentration under extreme heat cycling.
Foolproof Slotted Fast-Track Erection
All connection plates feature CNC-machined slotted holes with embedded calibration marks, enabling local unskilled labor to erect tables rapidly without field cutting or torches.
Turning Site Challenges into Engineered Certainty
Proven technical interventions to keep your project on spec, on budget, and on schedule
High humidity and coastal salt spray cause premature red rust on cut edges and bolt holes.
Upgraded all structural members to Zn-Al-Mg alloy steel (310g/m²), delivering 5x the corrosion resistance of standard HDG.
Sudden tropical squalls create intense wind suction, flexing mounting tables and fracturing silicon wafers.
Configured deep-flange C-purlins with continuous triangulated diagonal bracing, limiting dynamic table deflection under 1/250.
Strict TNB COD grid connection deadline; field welding or complex assembly causes massive delay penalties.
Engineered 100% pre-punched slotted connections and sequenced container packing, achieving plug-and-play assembly.
Missing TNB's grid COD means crippling liquidated damages, while tropical moisture rusts cheap brackets fast. Shijie eliminated all risk: 8,500 tons of Zn-Al-Mg solar steel bolted aloft with zero welding, resisting violent storm gusts with zero panel micro-cracks. Handing over 28 days early secured our PPA tariffs effortlessly. Pure engineering excellence.
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Why Global Contractors Choose SynJect
Predictable delivery, certified compliance, and direct engineering support for zero-risk execution
Pre-assembled in our factory and 3D-nested for containers to cut ocean freight and site delays
Fabricated strictly to CE EN 1090-1, AISC, and ISO 9001 / 14001 / 45001 with full NDT traceability
Work directly with senior structural engineers from Tekla 3D modeling to on-site erection
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