Structure and Technical Advantages of PVT PV-Thermal Integrated System

1. System Structure

The PVT photovoltaic-thermal integrated system adopts an integrated modular structure, which consists of three core units. First, the photovoltaic and heat collection

 unit is composed of tempered glass cover, photovoltaic cells, high thermal conductivity substrate, heat exchange channels and thermal insulation backplane, 

undertaking the functions of solar power generation and waste heat recovery. Second, the circulating energy storage unit includes heat exchange medium,

 circulating water pump, heat preservation water tank and connecting pipelines, realizing waste heat transmission and thermal energy storage. Third, the intelligent 

control unit is equipped with sensors, controllers and inverters, which can automatically adjust the system operating state to adapt to different working conditions and 

ensure fully automatic and stable operation.

2. Core Technical Advantages

2.1 Cascade Solar Energy Utilization and Low Temperature Attenuation

Traditional PV modules only convert a small part of solar energy into electricity, while most solar energy is

 converted into waste heat, which seriously reduces power generation efficiency. The PVT system continuously

 takes away the waste heat of modules to lower the operating temperature of cells and improve power 

generation efficiency. Meanwhile, the recovered waste heat can be used for building heating and domestic hot 

water supply. The comprehensive energy utilization rate can reach 75%–85%, which is far higher than that of

 single solar power or solar thermal equipment.

2.2 Highly Integrated Design and High Space Utilization

Integrating power generation and heat collection functions, a single PVT device can replace independent PV 

power generation and solar thermal systems without additional floor space. With lightweight and modular design, PVT products are adaptable to various installation

 scenarios such as building rooftops, curtain walls and carports. They are widely applied in building energy-saving renovation, effectively reducing construction cost 

and site occupation cost.

2.3 Intelligent Control and Full-Condition Stable Operation

Equipped with an intelligent frequency conversion temperature control system, the PVT system automatically adjusts 

medium circulation speed and system start-stop status according to sunlight intensity, ambient temperature and water

 tank temperature. Compatible with conventional water and antifreeze medium, it solves the common problems of 

freezing in winter and overheating in summer of traditional solar equipment, realizing stable all-weather and year-round operation.

2.4 Long Service Life, Low Maintenance Cost and High Economy

PVT modules adopt anti-corrosion, anti-aging and fully sealed technology, with excellent wind resistance and hail resistance,

 and the service life can reach 25 years. The system has a simple structure and low failure rate, requiring only simple daily

 maintenance. It creates dual economic benefits from both power generation and heat production, with a shorter investment

 payback period and superior long-term economic performance.

2.5 Low Carbon and Adaptable to Green Building Standards

Running on clean solar energy, the system achieves zero carbon emission, zero pollution and low noise. It can replace traditional electric heating, gas heating and 

municipal power supply, effectively reducing building energy consumption and carbon emissions. It fully meets the construction requirements of zero-energy buildings

 and ultra-low-energy green buildings, conforming to the development trend of green and low-carbon energy conservation.