photovoltaic power generation

Large-scale photovoltaic power station projects are invested and constructed by customers, with the goal of providing clean electricity for the transformation of local energy structure. The project needs to adapt to diverse environmental conditions (high temperature, high humidity, dust, etc.) and meet international standards and localized grid connection requirements.

---

Project scale and technical solution

• 1. Installed capacity: 200MW (ground power station)

• 
  

• 2. Core equipment:

• (1) High-efficiency bifacial components: Adopting N-type TOPCon technology (efficiency ≥ 22.5%), bifacial gain rate 20%, suitable for highly reflective ground (sand, snow, etc.).

• (2) Intelligent tracking bracket: Single-axis tracking system (power generation increased by 15%), wind-resistant design (wind speed tolerance 35m/s).

• (3) String inverter: 1500V system, supports multi-MPPT input, and adapts to complex terrain shadows.

• (4) Energy storage system: 50MW/100MWh liquid-cooled lithium iron phosphate battery, supporting black start and frequency modulation services.

• 3. Intelligent operation and maintenance system:

• UAV inspection: AI identifies hot spots and hidden cracks (accuracy ≥ 95%).

• Intelligent cleaning robot: Automatically plans the path in dusty environment, reducing water consumption by 70%.

---

Project Challenges and Solutions

Challenge	Customized solutions
Extreme high temperature (50℃+)	The components are made of low temperature coefficient materials (-0.29%/℃), and the inverter is forced to cool with air + awning for heat dissipation.
High salt spray corrosion (coastal)	Bracket coating thickening (≥120μm) + zinc aluminum magnesium coating, DC cable protection level IP68.
Weak grid access (SCR<1.5)	Configure STATCOM (±50Mvar) + virtual synchronous machine (VSG) technology to enhance grid stability.
Land utilization rate limit	Adopting the "photovoltaic + agriculture" model, the bracket is 2.5m above the ground, compatible with forage planting and animal husbandry.

---

Implementation results and value

1. Power generation performance:

• The equivalent utilization hours in the first year are 1,850 hours, which is 12% higher than the feasibility study expectation.

• The synergistic gain of bifacial components + tracking brackets, LCOE as low as $0.028/kWh.

2. Environmental benefits:

• Annual power generation of 370 million kWh, replacing 110,000 tons of standard coal, and reducing CO₂ emissions by 290,000 tons.

• The vegetation coverage rate of the photovoltaic area increased by 30%, and 500 hectares of degraded land were restored.

3. Social benefits:

• Local procurement rate exceeds 40% (brackets, cables), creating 300+ jobs.

• Community microgrids (photovoltaic + energy storage) are built to ensure 24-hour power supply for surrounding residents.

---

Core service capabilities

1. Full-cycle technical support:

• Design side: PVsyst+Helios 3D simulation, optimization of inclination angle and spacing.

• Construction side: Modular prefabricated cabin-type booster station, shortening the construction period by 30%.

• Operation and maintenance side: Photovoltaic panel IV curve detection + drone EL inspection, fault location accuracy ≤ 5 meters.

2. Localized compliance adaptation:

• Passed IEC 61215/61730 certification and UL fire rating, meeting the access standards of multiple countries in Europe, America, the Middle East, and Southeast Asia.

• Environmental assessment (EIA) and community communication (such as protection of indigenous rights).

3. Finance and Risk Management:

• PPA agreement structure design (fixed electricity price + inflation index linkage).

• Insure against power generation loss (90% guaranteed minimum) and equipment extreme weather insurance.