The most important thing in the photovoltaic industry is the use of photovoltaic modules to generate electricity and store electrical energy for power supply. What affects the operation of photovoltaic modules more is the natural environment. pay attention to the natural environment.Now the photovoltaic module design must be able to withstand harsh weather conditions such as sand, wind, snow, humidity, rain, etc., as well as changes temperature and season.
First of all, the photovoltaic support must be capable of supporting a sufficiently large load. The photovoltaic battery should have good shock resistance under the impact of rain, sand, etc., and ensure effective light transmission. within 10 to 20 years. The surface must also be able to effectively prevent dust deposition and corrosion fromnant of various other substances. According to some maintenance data, many damages to photovoltaic system components are linked to natural deposits. Most of them are the battery cover, the surface of the packaging material and the seals of various components. In addition, temperature also has a significant impact on photovoltaic components. First, the cell efficiency of the photovoltaic system has certain effects at low temperatures.
The current photovoltaic system must therefore improve its ability to resist natural damage, such as bonding materials at joints. The materials used for packaging need to be improved. A lot of research is also being carried out on photovoltaic modules and panels to improve the cooling mechanism.
Photovoltaic systems have very strict requirements for installation location and method, so what arethese requirements?
There are many types of photovoltaic power generation systems that we are familiar with, including grid-connected systems, off-grid systems and mains supplementary systems. These different types of systems have “strict” requirements for installation locations. and methods. So where is this harshness reflected?
The installation of photovoltaic power generation systems mainly refers to the installation of solar cell modules or solar cell arrays, as well as inverters , supports, etc. The location and installation method are also adapted to local conditions. , there are many forms, such as column installation, ground installation, roof installation, hillside installation, building installation and integrated building material installation , etc. Today we will talk about these types of methodsinstallation instructions.
The first type of column installation.
The main purpose of the application is solar street lighting. Generally, solar photovoltaic power generation systems are installed on metal, concrete and wooden poles, pillars, towers, etc. Since the components are installed at a higher position, the fixing of the components and the wind resistance of the high-altitude installation must be considered.
The second category is floor installation.
Floor installation. As the name suggests, the power plant is installed on the ground and then a tilting support is installed on the foundation. Solar modules are attached to the support on some sloping sites. , the supports can also be used on hillsides, etc. The inclined surface is directly used as a foundation and support to install the battery components.
The tthird type of installation on the roof.
It is very common to install photovoltaic systems on rural roofs. The first is to use the roof as a support and fix the battery components on the roof using special brackets or components to form a square array. It should be noted that there must be a space between the components and the roof. There is a certain space for ventilation and heat dissipation, the other is to combine the battery components directly with the roof to form a whole, also called photovoltaic square;The inheritance of the array and the roof.
Category 4 wall-mounted installation.
Like roof installation, wall-mounted installation can be roughly divided into two types: one is to use the wall as a support and fixing the battery components on the wall using brackets or special components to form a square array, that is, the arraya square of solar cell modules is attached outside to the wall of the unlit part of the building; the other is to transform photovoltaic modules into integrated photovoltaic building materials such as photovoltaic curtain wall glass and photovoltaic lighting glass windows. , which can be used as building exterior wall and lighting window material. It is directly applied to the building wall to form the integration of photovoltaic modules and building walls.
What is the impact if others rent my roof for photovoltaic production?
The characteristics of photovoltaic racks mainly include the following aspects:< /p>< p> 1. Durability and stability: Photovoltaic supports generally use high-strength materials, such as steel or aluminum alloys, to ensure their stability and durability in various conditionsenvironmental conditions.
2. Adjustable angle: Some photovoltaic racks have adjustable angle functions, which can adjust the angle of photovoltaic modules according to seasonal or weather changes to maximize power generation efficiency .
3. Easy installation: Photovoltaic racks generally adopt a modular design, and the installation process is simple and quick, which can improve construction efficiency.
4. Wind and earthquake resistance: Photovoltaic racks must have a certain wind and earthquake resistance to cope with harsh weather conditions.
5. Strong adaptability: Photovoltaic racks can adapt to different installation environments, including roofs, ground, mountains, etc. The appropriate media type can bee selected according to the specific situation.
6. Easy maintenance: Photovoltaic racks generally have good corrosion and weather resistance, reducing the maintenance and upkeep workload.
Generally, photovoltaic racks have the characteristics of durability, stability, adjustable angle, easy installation, wind and earthquake resistance, strong adaptability and easy maintenance. These features can help photovoltaic systems achieve higher power generation efficiency and longer lifespan.
Case of Kesheng rooftop photovoltaic support
The impact of other people renting their own roof for photovoltaic use: damages the roof and affects natural lighting.
1. Tear the roof off
As we all know, if you want to dophotovoltaics on the roof, you must cover the top floor with a layer of photovoltaics. panels. This is actually very harmful to the roof. Over time, the roof may leak or leak and will be difficult to repair. In addition, after the photovoltaic panels are covered, the weight of the top layer will increase over time, which will also affect the overall structure of the house and reduce the roof's strength and service life.
2. Impact on lighting
If the top floor is covered with photovoltaic panels, it will inevitably block sunlight, which will affect the overall lighting effect of the house and interior. it will be very dark and humid, which is actually not good for residents.
Things to note when carrying out photovoltaic projects
1. Rooftop Resource Project Survey
The distributed rooftop photovoltaic survey is the preThrough on-site surveys, we collect roof-related information to prepare for subsequent program design and ROI analysis. Actual roof structures come in various forms, and owners are also very concerned about issues such as feasibility, installed capacity, investment returns and cooperation models of rooftop photovoltaics.
2. Local resource conditions
Distributed PV site selection should prioritize areas with high amounts of solar radiation, less rainy weather, and low pollution levels. If the company is close to the seaside, it should consider anti-salt spray, anti-corrosion and anti-typhoon measures; if the company is located in a very dusty area, it should consider measures to prevent wind and sand; and increase the netcleaning if it is in a cold area, anti-freeze and snow removal measures must be considered;
3. Local photovoltaic support policies
In order to promote the development of distributed photovoltaics, various regions have implemented supporting policies at the provincial, municipal and even county levels. Project developers should familiarize themselves with these policies in the early stages of project development. As the photovoltaic industry currently needs government subsidies for its development, the quality of subsidy policies directly affects the distributed revenues. Therefore, distributed projects with good local policies should be developed first. .