What are the advantages and disadvantages of rooftop PV?

Disadvantages: Initially, residents need to pay a certain amount for the purchase of equipment, and even many people start a loan, which will cause certain damage to the roof.

As we all know, new energy has become a trend, and the relevant departments in many regions are encouraging farmers to complete the installation of photovoltaic power generation equipment. In addition, residents can sell the unused electricity to the relevant departments, so as to make full use of photovoltaic power generation equipment. However, many residents are still worried about the shortcomings of rooftop photovoltaic power generation equipment, and did not install photovoltaic power generation equipment in the first place.

Under normal circumstances, the promotion team will sign a good contract with the people and determine **1 kWh**. According to the content of the promotion team and the relevant contract, the electricity price of ** is about yuan, but the ** of China's residential electricity is yuan. Although there is a certain difference, residents can still get a part of the extra income.

It also makes full use of the roof and improves the quality of life.

As we all know, the weight capacity of any one item is not the same. The roof has a strong load-bearing capacity, which allows more residents to rent out the roof. However, rooftop photovoltaic power generation equipment is heavier.

If you have too heavy items stored on the roof of your house for a long time, it will inevitably affect the roof. In addition, many people need to pay for the equipment themselves, and some residents even complete the purchase process through loans.

In general, there are advantages and disadvantages to everything, and any one scheme presents advantages and disadvantages. Rooftop PV power generation can indeed bring more income to residents, but the input cost of residents in the early stage is somewhat high.

The advantages are that it is more environmentally friendly, saves money, and is convenient. The disadvantage is that it is easy to break, the installation is relatively high, the service life is relatively short, and it is easy to be affected by weather conditions.

Thermal insulation and cooling, some can also be waterproof, but also power generation, energy saving and emission reduction, one more layer of space, one more income.

Disadvantages: The equipment is more expensive and generally cannot afford it.

Advantages: Using the electricity generated by the household photovoltaic power station during the day can save electricity bills. The investment is small, and it can also be shaded.

Disadvantages, the payback time is long, it takes 5-6 years, and the installation is damaging to the house.

Summary. Hello dear. Hazards of photovoltaic roofs:

First, it will damage the roof structure, solar photovoltaic power generation depends on the volt effect of the semiconductor in the solar panel by the light, the size of the power generation and the panel is affected by the area of sunlight, so in order to achieve a relatively considerable amount of power generation, it is necessary to install a large area of the panel, the weight of the panel and the bracket and the supporting accessories will be very large, if the roof structure of the house is not strengthened at the beginning of the design or there is no plan to place heavy objects, The excessive weight of photovoltaic power generation equipment may have an impact on the roof structure, and if it is an old house, the roof may be damaged. Second, the problem of light pollution, because the photovoltaic power generation panel will reflect a part of the sunlight, if there are relatively high buildings around the installation of photovoltaic power generation equipment, when the sun angle is appropriate, the weather is clear, it is possible to reflect the sunlight to the indoor building of the room, causing light pollution to the indoor environment, there is a scientific research surface, excessive light will induce eye diseases will also affect people's emotions and produce anxiety, fatigue, and decreased concentration.

Hello dear. The hazards of photovoltaic roofs: First, it will damage the roof structure, solar photovoltaic attacks and disadvantages rely on the volt effect of the semiconductor in the solar panel by the light, the size of the power generation and the panel is affected by the area of sunlight, so in order to achieve a relatively considerable amount of power generation, it is necessary to install a large area of the panel, the weight of the panel and the bracket and the supporting accessories will be very large, if the roof structure of the house is not strengthened at the beginning of the design or there is no plan to place heavy objects, The excessive weight of photovoltaic power generation equipment may have an impact on the roof structure, and if it is an old house, the roof may be damaged.

Second, the problem of light pollution, because the photovoltaic power generation panel will reflect a part of the sunlight, if the installation of photovoltaic power generation equipment around a relatively high building, in the sun angle is suitable, when the weather is clear, it is possible to reflect the sunlight to the indoor of the nearby building, causing light pollution to the indoor environment, there is a scientific research surface, excessive light will induce eye diseases will also affect people's emotions to produce anxiety, fatigue, and decreased concentration.

The cost is relatively high, and now the photovoltaic product market is still in the development period, and it is still relatively expensive. According to the market, the average family installs 5 kilowatt photovoltaic equipment, and invests 5-60,000 yuan in the early stage, and it takes about 6 years to recover the cost after counting the usual maintenance and repair. Fourth, safety issues: If you encounter a strong wind, the battery file of photovoltaic power generation will be blown down by the wind.

Typhoons in coastal areas of our country can blow even cars down, and if the battery panels are not installed firmly or the screws are rusty and aging, the battery panels may be blown off by the wind. I hope it can help you and I wish you a happy life.

Summary. 2. Destroy the roof waterproof layer to install the bracket of the photovoltaic power generation system need to drill holes on the roof first, after drilling will destroy the original waterproof layer of the house, if there is no waterproof layer again, it will leak when it rains, because there is a gap between the screw and the hole, the waterproof process requirements are very high, if it is too thick, it will affect the installation. Too thin and ineffective.

The effect of the second waterproofing is far less effective than the first one, which increases the likelihood of water leakage.

Dear, hello, the following is what I found for you1, damage to the roof structure, solar photovoltaic power generation relies on the volcanic cavity effect generated by the internal semiconductors of solar panels. At the beginning of the design, the structure of the roof was not reinforced. Due to the heavy weight of the photovoltaic power generation equipment, it is possible to damage the roof structure, especially in the case of old houses.

2. Destroy the roof waterproof layer and install the bracket of the photovoltaic power generation system need to be drilled on the roof first, and the original waterproof layer of the house will be destroyed after drilling. Too thin and ineffective. The effect of the second waterproof is far less effective than the first brother, which will increase the possibility of water leakage.

2. Destroy the roof waterproof layer and install the bracket of the photovoltaic power generation system need to be drilled on the roof first, and the original waterproof layer of the house will be destroyed after drilling. Too thin and ineffective. The effect of the second waterproof is far less effective than the first brother, which will increase the possibility of water leakage.

3. Light pollution problemIf there are relatively high buildings near the installation of photovoltaic power generation equipment, it is very likely to reflect a buried sunlight to the interior of the nearby building, causing light bending pollution to the indoor environment, and relevant studies have shown that excessive light will lead to eye diseases, and even cause anxiety, fatigue and reduced concentration to people's emotions.

4. Safety issues: If you encounter strong winds, there is a danger that the photovoltaic panels may be blown down by the noise. In particular, if the installation of the battery board is not firm or the screws are rusty and aging, the battery board may be blown off by the wind, and the later maintenance cost is also high.

Kiss! Hello, happy to answer your <>

What are the advantages and disadvantages of pro-roof photovoltaics: If solar panels are installed on the roof, it can effectively use the resources of solar energy, so as to generate electricity, which can save electricity. Now the state has a round of subsidies for the installation of power panels 2, the installation of rooftop solar panels is relatively simple, generally speaking, a few workers, half a day can be installed in place.

Disadvantages of rooftop solar panels 1, the installation of solar panels is relatively large investment, for some families, may consider the cost of installation, will not accept. 2. This kind of solar power panel is directly installed on the roof, and it may have the problem of corrosion if it is exposed to wind and sun for a long time in the later stage. Hope mine can help you <>

Do you have any other questions?

1. Revitalize fixed assets and increase corporate income. For some productive enterprises or factories, their plant covers a large area, less than a few thousand square meters, more than tens of thousands of hundreds of thousands of square meters. After installing the photovoltaic system on the roof of the factory, the idle factory building can be utilized, which can revitalize the fixed assets of the enterprise factory and bring more benefits to the factory enterprise.

2. Save peak electricity bills, and sell surplus electricity online. Generally speaking, the machines in the enterprise factory will consume a lot of electricity when they are running, and they will need to pay a large amount of electricity bills in the long run. If photovoltaic power generation is installed on the roof of the plant and in the row, it can realize its own power generation and use, and the surplus power can also be effectively utilized, which can not only effectively solve the problem of large electricity consumption of the enterprise factory, but also bring more economic profits to the enterprise factory.

3. Energy conservation and emission reduction. The installation of photovoltaic power generation can achieve emission reduction in the zone forest, and it is installed on the roof, will not occupy the space of the ground, is not limited by resources or geography, is safe and reliable to use, will not cause pollution, and will not produce large noise.