2.11 MWp Distributed PV Project · Huizhou
Commercial Rooftop Solar System · 3D Simulation & Engineering Layout
Case Study: 2.11 MWp Distributed PV Project · Huizhou, China
Project Overview
| Parameter | Value |
|---|---|
| System Capacity | 2.11 MWp (3,244 × 650 Wp Bifacial Double-Glass Modules) |
| Inverter Solution | 20 × Huawei SUN2000-110KTL-M2 (110 kW String Inverters) |
| Application | Industrial / Commercial Flat Concrete Roof |
| Deliverables | Site Survey Report / CAD Layout / 3D Render / Shading Analysis |
| Est. Annual Yield (Year 1) | ~2.12 Million kWh (2,117,667 kWh) |
| 25-Year Total Yield | ~49.59 Million kWh |
| CO₂ Reduction (Year 1) | ~1,208 Tons / Year |
| Lifetime CO₂ Reduction | ~28,281 Tons |
| Equivalent Trees | ~67,094 Trees / Year |
Our Design Workflow
Site Survey & Structural Assessment
On-site evaluation of roof load-bearing capacity, waterproofing condition, and surrounding shading obstacles to determine optimal tilt and azimuth angles. Special attention to typhoon loads and salt-mist corrosion risks in the subtropical monsoon climate of Huizhou.
UAV Aerial Survey & 3D Modeling
High-resolution orthophoto captured by drone, imported into PVsyst / SketchUp for 1:1 three-dimensional modeling, simulating annual shading trajectories and rear-side irradiance gain of bifacial modules.
CAD PV Array Layout Optimization
String layout design based on available roof area and structural column positions, maximizing installed capacity to 2.11 MWp while preserving 1.2 m O&M corridors compliant with IEC 62446 standards.
Photorealistic 3D Visualization
High-resolution renders showing module arrangement, inverter placement, cable tray routing, and overall system integration — ideal for stakeholder approval, investor presentation, and EPC bidding.
Design Highlights
Bifacial Gain
650 Wp bifacial double-glass modules deliver 10–20% rear-side gain, significantly boosting per-area yield on low-tilt flat rooftops.
Smart Inverter Solution
20 × Huawei 110 kW string inverters with PLC communication and Smart IV Curve diagnosis — fault-troubleshooting time reduced by over 30%.
O&M-Optimized Layout
1.2 m service corridors reserved for aerial work platforms and cleaning robots — fully compliant with IEC 62446 O&M standards.
Coastal Climate Adaptation
Anodized aluminum + hot-dip galvanized dual anti-corrosion mounting and 304 stainless-steel fasteners — 25-year design life for South China high-humidity, high-salinity environments.
Precise Shading Avoidance
3D simulation of year-round shadowing from surrounding buildings ensures System PR ≥ 83% and a 2.12 million kWh first-year yield.
Yield & Environmental Impact
Based on Huizhou area annual equivalent peak sun hours of ~1,100 h, System PR=83%, bifacial gain of 10%, and module degradation of 0.55%/year:
- ●First-Year Yield: 2,117,667 kWh (~2.12 million kWh) — enough to power ~400–500 mid-sized C&I users annually
- ●25-Year Total Yield: ~49.59 million kWh (factoring in 0.55%/year module degradation)
- ●First-Year CO₂ Reduction: 1,208 tons — equivalent to the annual carbon absorption of 67,094 mature trees
- ●Lifetime CO₂ Reduction: 28,281 tons — supporting corporate ESG goals and green supply-chain certifications
About SJ Solarhub
SJ Solarhub provides integrated EPC solutions covering PV, energy storage, and EV charging infrastructure for commercial, industrial, and residential clients. With 12 years of deep expertise in the new energy sector, our team has cumulatively completed project designs exceeding 150 MW across China and international markets, holding national-grade new energy design qualifications and electrical engineering construction licenses.
We deliver turnkey solutions from site survey, system design, equipment procurement, construction, to grid-connection O&M, supporting major global certification systems (IEC / TÜV / CE / SAA / ETL).
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