The advantages and disadvantages of installing photovoltaic panels on rural roofs

The advantages and disadvantages of installing photovoltaic panels on rural roofs

1. Advantages of installing photovoltaic energy production on rural roofs< /p>

1. Environmental protection and energy saving

The production of Photovoltaic energy is a clean energy source that does not produce harmful gases such as carbon dioxide and causes less environmental pollution. At the same time, solar energy is a renewable energy source that will not be exhausted and can provide electricity continuously.

2. Reduce energy costs

Rural areas generally lack energy resources, and using traditional power supply methods requires investing a lot of money and resources. Photovoltaic power generation can use solar energy to produce electricity for free.t, thereby reducing energy costs and easing the economic burden on rural residents.

3. Increasing sources of income

Houses in rural areas are mostly single-family or residential complexes with large roof areas, suitable for the installation of photovoltaic power generation equipment. By using rooftops for photovoltaic power generation, excess electricity can be sold to the grid, generating electricity fee revenue and increasing the source of income for rural residents.

4. Improving the reliability of power supply

The power supply in rural areas is generally unstable and power outages often occur. Photovoltaic power generation can continue to generate electricity when there is sufficient sunshine, which improves the reliability of electricity supply and solves the consumption problem.electricity ion of rural residents.

2. Disadvantages of installing photovoltaic power generation on rural rooftops

1. High initial investment

Purchase and installation of photovoltaic energy. power generation equipment This requires a certain amount of capital investment and can put some economic pressure on rural residents. Although investment costs can be reduced through government subsidies and other means, some financial support is still necessary.

2. Limited by weather conditions

Photovoltaic power generation depends on the adequacy of solar energy, and the efficiency of power generation will be affected when weather conditions are bad. In areas with rainy weather or less sunshine in winter, photovoltaic power generation may not be aseffective than expected.

3. Maintenance and management costs are high.

Photovoltaic power generation equipment needs to be cleaned and maintained regularly to ensure the efficiency of electricity production and the lifespan of the device. equipment. This requires a certain human and material investment, which increases management costs for people in rural areas.

Laminated structure of photovoltaic panels

1. Tempered glass: Its function is to protect the main body of energy production (like cells) and its selection. is useful for transmitting light If necessary, light transmittance should be high (generally above 91%);

2. EVA: Used to bond and fix tempered glass and main power generation body (such as battery cells). The quality of the transparent EVA material directly affects the life of the component explaced on the EVA. the air is prone to aging and yellowing, thereby affecting the light transmission of the module, thereby affecting the power generation quality of the module. In addition to the quality of the EVA itself, the module manufacturer's lamination process also has a big impact. For example, the viscosity of EVA adhesive is not up to standard, and the EVA is stuck to the tempered glass and back plates. Insufficient strength will cause EVA to prematurely age and affect the service life of components. .

3. Main power generation body: The main function is to generate electricity. The main power generation bodies in the market are crystalline silicon solar cells and thin film solar cells. Crystalline silicon solar cells have relatively high equipment costs. Low, but cell consumption and cost are high, mays photoelectric conversion efficiency is also high. Thin-film solar cells are more suitable for generating electricity under outdoor sunlight. high, but battery consumption and cost are very low.

4. The backplane serves as sealing, insulation, and waterproofing (usually TPT, TPE, etc.). Most component manufacturers have a 25-year warranty. this is generally not the case for aluminum alloys. The key question is whether the backplate and silicone can meet the requirements.

5. The operating voltage and output power are designed according to different requirements, and various wiring methods can be provided to meet different output voltage, current and power requirements.

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