A square meter of solar panel can generate 1.4 to 1.5 kWh of electricity in ten hours.
The power of a 1.1 square meter solar panel is about 140-150W. It is a relatively fixed quantity, but daily lighting conditions are variable, such as rain, cloudy days, morning, evening..., all affect electricity production. In theory, 1 square meter of solar panels can generate 1.4 to 1.5 kilowatt hours of electricity in ten hours.
2. There are several types of solar energy production. One is crystalline silicon, including monocrystalline silicon and polycrystalline silicon, the other is amorphous silicon power generation, which is not crystalline silicon. power, flexible solar energy production. Due to the low conversion rate of amorphous solar cells, crystalline silicon solar power generation is now more widely used.
A solar paneln crystalline silicon of 3.1 square meters is equivalent to approximately 120-140 W. If calculated at 120 W, the sun at 6 hours a day is 120*6 = 720 WH. A 10W lamp depends on how many hours you use it per day and how many consecutive rainy days you use it. If you use it 9 hours a day and 3 rainy days, then the battery panel is 30-50W.
4. One square meter of monocrystalline silicon solar panel is equivalent to approximately 120 watts. It generates electricity for approximately 8 hours a day. It can generate approximately 0.96 kilowatt hours of electricity every day. is greatly affected by sunlight, the stronger the sunshine and the longer the sunshine duration, the greater the energy output.
How much electricity can one square meter of solar panels produce in one hour?
Taking the most common crystalline silicon solar panels as an exampleent used in industry (roof installation method in Shanghai), an average of 15 kW is installed on 100 square meters, the annual electricity generation is 17,089 degrees, and the average daily electricity generation is 3.49 expenses.
Solar panel is a device that absorbs sunlight and converts solar radiation energy directly or indirectly into electrical energy by photoelectric effect or photochemical effect. The main material of most solar panels is "silicon", but due to the photoelectric effect. high production cost, its widespread use still has certain limitations.
Compared with ordinary batteries and recyclable rechargeable batteries, solar cells are more energy-saving and environmentally friendly green products.
1) The role of tempered glass is to protect the main power generation body (suchthan cells), and there are requirements for its light transmission selection. 1. Light transmittance should be high (generally). more than 91%); 2. Ultra white tempered treatment
2) EVA is used to bond and fix the tempered glass and the main power generation body (such as battery cells). The quality of transparent EVA). The material directly affects the lifespan of the component. EVA exposed to air is prone to aging and degeneration, 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 bonding degree of EVA is not up to standard, and EVA and tempered glass, backplane. Insufficient bond strength will cause premature aging of the EVA and affect the lifespanlife of the components. .
3) The main function of the battery is to generate electricity. Crystalline silicon solar cells and thin film solar cells are the most common in the main market, both of which have their own advantages and disadvantages. Crystalline silicon solar cells have relatively low equipment costs, but the consumption and costs of the cells are high, but the photoelectric conversion efficiency is also high, which makes them suitable for power generation under the outdoor sunlight. Thin-film solar cells have relatively high equipment costs, but the equipment costs are relatively high. battery consumption and costs are high. The cost is very low, but the photoelectric conversion efficiency is more than half of that of crystalline silicon cells, but the low luminosity effecté is very good and can also generate electricity under ordinary light, such as e.g. solar cells on calculators.
4) The EVA works as above, mainly bonding and encapsulating the main body of the power generation and the backplane
5) The function of the backplane basket is sealing, insulation and waterproofing. (usually TPT, TPE and other materials should be used) Aging resistance, most component manufacturers have a 25-year warranty. Tempered glass and aluminum alloy generally pose no problem. The key is the ability of the backplane and silicone to meet the requirements. /p>
6) Protective lamination in aluminum alloy. It plays a certain sealing and supporting role
7) The junction box protects the entire power generation system and acts as a current transfer station if the componentt. is shorted, the junction box automatically disconnects the shorted battery string to prevent the entire system from shutting down. The most critical thing in the junction box is the diode selection. Depending on the type of cells in the module, the corresponding diodes are also different.
8) The silicone sealing function is used to seal the module and the module. Aluminum alloy frame, module and junction box junction. Some companies use double-sided tape and foam to replace silica gel. The process is simple, practical, easy to use and the cost is very low.
The efficiency of commercial photovoltaic solar panels can now reach around 16%, which means that 16% of the solar energy obtained from one square meter can be converted into direct current. \r\n \r\nLight intensity varies considerably depending on the settingsions, so the actual energy production of the same photovoltaic panels installed in different regions will also be very different. Taking the Shanghai area as an example, at noon from May to June, the solar intensity received per square meter is about 900 to 1,000 Wh. According to the 16% efficiency mentioned above, it can generate 150-160 Wh of electricity per square meter per hour. 1,000 Wh corresponds to one kilowatt hour of electricity. \r\n \r\nIf you have a 100 square meter roof, you can probably install 10 to 12 kW panels, which can generate around 40 kilowatt hours of electricity every day from May to June.