Governments worldwide are promoting solar energy through various policies. Solar power systems are generally classified into centralized (large-scale PV plants) and distributed (rooftop PV) systems. The article covers three types of ground-based solar mounting foundations: 1. **Independent and Strip Concrete Foundations** - **Advantages**: Easy to construct, adaptable to different soils, and shallow depth. - **Disadvantages**: High labor and material costs, long construction times, and environmental impact. 2. **Spiral Pile Foundation Support (Ground Screw Piles)** - **Advantages**: Quick to install and causes minimal environmental disruption. 3. **Impact Pile Foundation Support** - **Advantages**: No excavation needed, quick installation, and adaptable to various climates. - **Disadvantages**: Difficult to install in hard or rocky soils and may corrode in saline areas. Each foundation type has unique benefits and limitations, making them suitable for different solar projects based on location and conditions.

Solar ground screws offer a cost-effective and efficient alternative to traditional concrete foundations for solar installations. They require minimal excavation and no heavy machinery, which reduces costs and environmental impact. These screws provide stability and durability, capable of withstanding wind and seismic challenges. In contrast, concrete foundations are labor-intensive, time-consuming, and more expensive. Overall, ground screws present significant advantages in cost, installation speed, and sustainability, reflecting 9sunsolar's commitment to supporting Japan's transition to renewable energy. For more details, visit www.sunsolar.net.