Function

Photoelectric conversion: Solar panels absorb photons in sunlight, stimulate electrons to generate current, and realize the conversion of light energy into electrical energy.

Green and environmentally friendly power generation: The solar power generation process is pollution-free, noise-free, and does not emit greenhouse gases. It is a kind of clean energy.

Independent power supply and grid-connected power generation: It can provide independent power supply for off-grid equipment, or it can be connected to the power grid for more users.

Wide application: It is suitable for home, commercial, industrial and public facilities, and can power various electrical equipment.

Combined with energy storage system: It can be combined with battery energy storage system for daytime power generation and nighttime use to improve energy self-sufficiency and energy management flexibility.

Efficiency of solar panels

The efficiency of solar panels refers to its ability to convert light energy into electrical energy, usually expressed as a percentage. Efficiency is affected by many factors such as materials, design, and technology. Common types and their efficiencies:

Monocrystalline silicon solar cells:

Efficiency range: 17%-22%

Features: High efficiency, excellent photoelectric conversion performance, suitable for application scenarios with limited space but high output requirements.

Polycrystalline silicon solar cells:

Efficiency range: 15%-18%

Features: Relatively low cost, but slightly lower efficiency than monocrystalline silicon, suitable for large-area applications, such as ground photovoltaic power stations.

Thin-film solar cells:

Efficiency range: 10%-12%

Features: Lightweight, suitable for installation on roofs, building exterior walls and other scenes, but low efficiency, conversion rate is worse than crystalline silicon cells.

High-efficiency solar cells (such as PERC cells, IBC cells):

Efficiency range: 22%-24% (PERC); 24%-26% (IBC)

Features: Advanced technology improves the photoelectric conversion efficiency of the cell, suitable for high-end applications, such as industrial and commercial occasions with large electricity demand.

Factors affecting efficiency

Environmental factors: Such as the intensity of sunlight, weather conditions, temperature, dust, etc. will affect the actual power generation efficiency of solar panels.

Installation angle and orientation: The best angle and orientation facing the sun can improve the energy absorption of the panel.

Panel quality: High-quality panels can maintain high power generation efficiency in long-term use and have a slow decay rate.