1. Environmental pollution is severe in various regions,global temperature is warming,and developed countries
are promoting carbon emission improvement.
2. The National Development and Reform Commission emphasized the need to accelerate the construction of a
carbon peak and "1+n" policy system.
Deepen the action to peak carbon dioxide emissions,Promote economic and social development based on efficient
resource utilizationand green low-carbon development,and accelerate the realization of green transformation in
production and lifestyle.
3. Strive to achieve carbon peak before 2030 and carbon neutrality before 2060- vigorously promote energy
conservation work to help achieve carbon peak neutrality.
Composition system of photovoltaic power generation solution
1. Design principles
① Scale up
Reasonably determine the scale of the photovoltaic power generation system based on factors
such as factory electricity demand and available space.
② Reliability
Select efficient photovoltaic modules and inverters,and take appropriate protective measures to ensure
the reliability and stability of system operation.
③ Efficiency
By rational design and configuration,the photovoltaic power generation system can maximize its
power generation efficiency and reduce the electricity cost of the factory.
④ Scalability
Considering the growth of future factory electricity demand,ensure that the photovoltaic power generation
system has a certain degree of scalability.
2. Composition of Photovoltaic Power
Generation System
The photovoltaic power generation system mainly consists of solar photovoltaic modules,
inverters, brackets, cables, and distribution cabinets.
2.1 Photovoltaic modules
The selection of efficient photovoltaic modules is the key to ensuring the power generation efficiency
of photovoltaic power generation systems.
It is recommended to use monocrystalline silicon or polycrystalline silicon photovoltaic modules with high
conversion efficiency.
According to the electricity demand of the factory
Sum up the lighting conditions, reasonably determine the quantity and layout of photovoltaic modules,
and maximize the use of available solar energy resources.
2.2 Inverter
Inverters play a role in converting direct current into alternating current,and high-efficiency and high
reliability inverters should be selected.
Reasonably configure according to the quantity and output power requirements of photovoltaic modules.
The number and model of inverters to achieve efficient energy conversion.
2.3 Bracket
The bracket is a key equipment for supporting and installing photovoltaic modules,and materials with high
oxidation resistance, corrosion resistance,and strength should be selected.
According to the site conditions and inclination requirements of the factory,choose the appropriate one
Suitable bracket types (ground brackets, roof brackets, etc.) and ensure the stability and safety of the brackets.
2.4 Cables and Distribution Cabinets
Cables and distribution cabinets are key equipment in photovoltaic power generation systems,used to
connect photovoltaic modules, inverters, and the factory's power grid system.
Suitable cable specifications and distribution cabinet capacity should be selected.
Quantity ensures the safe and stable transmission of electrical energy.
3 . Installation and Debugging
The installation and commissioning of the factory's photovoltaic power generation system should be the responsibility
of a professional photovoltaic power generation system installation company.
During the installation process, the following key steps need to be considered:
3.1 Install photovoltaic module brackets and fix the photovoltaic modules according to design requirements.
3.2 Connecting cables between photovoltaic modules and inverters to ensure wiring quality and safety
3.3 Install the inverter and perform debugging work for connection.
3.4 Complete the connection between the photovoltaic power generation system and the factory power grid system
to ensure the stable operation of the system.
4. Operation and maintenance
The photovoltaic power generation system that has been built and put into use requires operation and
maintenance work to ensure the normal operation and power generation efficiency of the system.
4.1 Operation monitoring
Factories that install photovoltaic power generation systems should establish effective operation monitoring systems.
Real time monitoring of indicators such as the power generation of photovoltaic modules, the working status of inverters,
and power generation efficiency.
Analyze the operation of the system and optimize and adjust it.
4.2 Regular Inspection and Maintenance
Regular inspection and maintenance of photovoltaic power generation systems,including cleaning the surface
of photovoltaic modules,checking cable connections, detecting the working status of inverters,replacing aging or
faulty components, etc.
The main purpose is to ensure the efficiency and stability of the system.
4.3 Data Analysis and Optimization
Regularly analyze and optimize the data of photovoltaic power generation systems.
By monitoring indicators such as power generation, efficiency, and losses of the system,identify system problems
and areas for improvement, and take corresponding measures.
Measures should be taken to improve the power generation efficiency
and economic benefits of the system.
5. Case sharing
Case 1: Photovoltaic power generation system of a certain
automotive parts factory in Zhongshan
A certain automobile parts factory in Zhongshan installed a photovoltaic power generation system on
the roof of the factory in 2019,with a total installed capacity of 2000kW.
The power generation in the first year reached 197.98 kWh,saving an average of 1.6498 million yuan in
electricity bills per year.
The investment payback period for the photovoltaic power generation system in this factory is 5 years, with an
expected useful life of over 25 years.
Through the use of photovoltaic power generation systems,the electronic factory has successfully reduced carbon
emissions and achieved sustainable development.
Case 2: Honda factory energy-saving
management system
