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100MW Desert-based PV Fixed Ground-mounted System | Inner Mongolia, China

December 25, 2025

1. Project Overview

1.1 Project Background: As the EPC contractor, Ningxia Jiayang New Energy supports China’s “PV + Ecological Restoration” strategy by integrating renewable energy development with desert rehabilitation. The 100 MW desert-based PV project in Alxa, Inner Mongolia, exemplifies the “generate power above, restore ecology below” model, aiming to deliver clean power, improve degraded land, and support regional ecological recovery.

1.2 Project Requirements: The project site features typical plateau desert terrain with a temperate continental climate. It offers excellent solar resources (annual irradiation exceeding 1,600 kWh/m²) but faces severe windblown sand, large temperature swings, and highly desertified soil. The project required a PV mounting solution capable of withstanding harsh environmental conditions, ensuring long-term stability, improving power generation through optimized design, and supporting ecological restoration.

2. Challenges

2.1 Severe Wind, Sand, and Climate Conditions

Frequent strong winds and sandstorms cause abrasion and blockage of moving parts, demanding high reliability and minimal maintenance.
Large diurnal and seasonal temperature variations and strong UV exposure challenge material durability and the stability of electrical equipment.

2.2 Efficient Solar Capture in a High-Latitude Region

The high latitude results in significant seasonal variation in solar altitude, requiring optimized tilt adjustments to maximize irradiation capture.
Remote location and limited O&M resources necessitate a system that is easy to adjust and incurs low lifecycle maintenance costs.

2.3 Structural Safety Under Complex Terrain and High Wind Loads

The undulating plateau terrain complicates foundation works and array leveling, requiring strong topographical adaptability.
High wind loads impose strict requirements on structural stability and wind-resistance performance.
3.Solution

Antaisolar delivered a one-stop solution centered on a fixed adjustable mounting system, engineered specifically for desert conditions and sand-control objectives.

3.1 Reliable Structure Designed for Desert Wind and Sand

A purely mechanical adjustment mechanism using dampers and drive posts eliminates motors and electronic controls, preventing sand intrusion and improving reliability in dusty environments.
High-strength steel with enhanced anti-corrosion treatment ensures long-term durability under dry, high-UV desert conditions.

3.2 Seasonal Tilt Adjustment for Higher Energy Yield

The system supports flexible north–south tilt adjustments, allowing operators to set optimal seasonal angles and enhance irradiation capture over the project lifecycle.
The manual mechanism is simple, requires no external power, and minimizes maintenance efforts in remote regions.

3.3 Wind Resistance and Terrain Adaptability

Structural design is validated through rigorous wind-load simulations to ensure array stability under local wind conditions.
Adjustable foundation height options accommodate terrain variations, reducing earthworks and accelerating construction.
4.Results
The project is expected to generate 195 million kWh annually, saving approximately 64,200 tons of standard coal and reducing 204,000 tons of CO₂ emissions each year, contributing significantly to the regional clean energy supply.
Scientific array spacing and adequate module clearance create shaded ground zones that reduce surface evaporation by 20%–30%, improving soil-water retention. Reduced wind intensity and moderated microclimate beneath the modules support the survival of sand-fixing vegetation, realizing ecological benefits.
As a successful demonstration of the “PV + sand control” model, the project provides a proven technical reference for PV development in high-latitude, high-irradiation, wind-driven desert regions, and lays the groundwork for future integrated “PV + agriculture” applications.