Photovoltaic modules can be divided into three types: monocrystalline silicon, polycrystalline silicon, and thin-film.
Monocrystalline silicon is currently the most commonly used module type in the market, offering high efficiency and moderate cost.
Polycrystalline silicon is cheaper than monocrystalline silicon but has slightly lower power generation efficiency.
Thin-film modules perform well under low-light conditions, are lightweight, and have flexible, bendable properties, making them suitable for special applications.

The difference between single-sided and bifacial solar modules lies primarily in their structural design and power generation principles.
single-sided modules have solar cells only on the front side, with an opaque backsheet that blocks light.
Bifacial modules contain solar cells on both the front and rear sides, typically using a transparent backsheet or dual-glass structure. These modules can absorb reflected light from the ground, snow, water, or surrounding environments, enhancing energy generation.

1.Verify Open-Circuit Voltage (Voc)
During series connection, ensure the total string Voc does not exceed the inverter's maximum input voltage limit.
Optimize Sunlight Exposure
2.Avoid shading from obstructions (trees, buildings, chimneys, etc.).
Modules under the same MPPT input must maintain identical orientation and tilt angles to prevent string mismatch losses.
3.Tilt Angle Optimization
Adjust the installation tilt angle based on local latitude to maximize annual energy yield