Do you want to ask “What factors affect the conduction band of photovoltaic solar cells? » 1. Solar energy resources. When the actual installed capacity of the photovoltaic plant is certain, the energy production of the photovoltaic system is determined by the intensity of solar radiation. There is a positive correlation between the amount of solar radiation and power. generation. The radiation intensity and spectral characteristics of the sun change depending on weather conditions.
2. Module installation method. The amount of radiation from the inclined surface at different installation angles in the same area is different. The amount of radiation from the inclined surface can be adjusted by adjusting the tilt of the panel. The bracket is fixed and adjustable) or adding tracking equipment (the bracket is fixed and adjustable type) to increase.
3. Ond capacity reportinverter capacity ratio refers to the ratio between the rated power of the inverter and the capacity of the photovoltaic modules it carries.
What are the factors that affect the electricity production of solar power generation systems?
Divide 4.8 kilowatt hours of electricity by the power of installed components per square meter to obtain an energy production of 1 W per year.
According to experience, in China, the installed capacity of large and medium-sized ground-mounted power plants should be around 60W per square meter. Taking Beijing as an example, the average effective sunshine for many years is 1,460 hours. . Calculated this way, 60W×1460h=87.6 kWh. 87.6kWh÷60W=1.46 kWh/W, that is, the power generated by 1 watt in a year is 1.46 kWh. The data in the question should be wrong.
How is electricity production affected?
Certain components of photovoltaic power plant equipment are blocked. There are many blocking factors, such as trees, dust, buildings, etc. Some of the blocked components can easily cause hot spot effects and affect the power generation of the power plant. According to estimates, dust losses in power plants could reach 6%! According to the circuit principle, when components are connected in series, the current is determined by the smallest component. Therefore, if there is a shadow on a component, it will affect the power output of that component. Therefore, components should be cleaned and wiped regularly to reduce dust. Line losses are mainly line losses in the DC and AC circuits of the system. To use wires with good electrical conductivity, the wires must have sufficient diameter. No racCourtesy is not permitted in construction. When maintaining the system, special attention should be paid to the connection of plug-ins and the safety of wiring terminals.
?Solar radiation
Provided that the photovoltaic plant generates a certain power, the amount of energy generated depends on the intensity of the light and of the amount of solar radiation. Directly proportional to the electricity production of the photovoltaic plant. In other words, the more sunlight there is, the higher the electricity production will be.
How to install solar photovoltaic modules
If the lighting conditions in the same area are the same, but the tilt angle of the installed solar photovoltaic modules is different, the amount of solar radiation received by the photovoltaic panels will be different. The amount of radiation can be increased by adjusting the inclination of the panelsphotovoltaic waters or by adding monitoring equipment.
According to the solar lighting resources and the longitude and latitude of where the photovoltaic modules are used, install the tilt of the photovoltaic panel according to the following conditions.
When the latitude is 0-25°, the tilt angle of the solar photovoltaic module is the same as the latitude. The same degree
When the latitude is 26 -40°, the tilt angle of the solar photovoltaic module is latitude + (5-10)°
When the latitude is 41-55°, the tilt angle of the solar module photovoltaic The tilt angle is latitude + (10-15)°
When the latitude is >55°, the tilt angle of the photovoltaic solar module is latitude + (15 -20 )°
Photovoltaic solar module The power attenuation of photovoltaic modules
The power attenuation of photovoltaic modules refers to the phenomenon saccording to which the output power of photovoltaic modules decreases as the lighting time increases. This is related to the characteristics of the photovoltaic modules themselves, such as module power attenuation caused by photovoltaic module aging, module power attenuation caused by destructive factors, etc.
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Matching photovoltaic modules in series and parallel connection
Any series connection will result in current loss due to the current difference of the components; will cause current loss due to the current difference of the components. The voltage difference results in a voltage loss;