To determine how many solar panels your home needs, you first need to know how much electricity your home consumes on a daily or monthly basis. This can be found out by looking at the electricity bill and then multiplying the household’s electricity consumption by 30 days to get the household’s monthly electricity consumption.
Next, you need to understand the amount of electricity generated by solar panels. The amount of electricity generated depends on factors such as the amount of solar radiation in the location, the area and efficiency of solar panels. In general, in our country, the annual electricity generation per square meter of solar panels is about 1000 kWh. However, please note that this is only an approximate figure, and actual electricity generation may vary depending on factors such as region, weather, and usage conditions.
Taking into account the monthly electricity consumption of the household and the amount of electricity generated per solar panel, it is possible to calculate the required number of solar panels. For example, let’s say a household consumes 500 kWh of electricity per month, the amount of solar radiation in the location is 5 kWh/m²/day, and the solar panels used have an efficiency of 15%. The monthly electricity generation of each solar panel can then be obtained by multiplying the amount of solar radiation, area, and efficiency. Then, divide the household’s monthly electricity consumption by the monthly electricity generation of each solar panel to get the required solar panel area. Finally, based on the actual size and area of the solar panels, it is possible to determine the number of solar panels required.
Please note that this is only a basic calculation, and the actual demand for solar panels may also require considering other factors such as the installation angle, orientation, shading, etc., of the solar panels. Therefore, before buying and installing solar panels, it is recommended to consult a professional solar installation company or engineer for more accurate tips and diagrams.
In addition, the price of solar panels varies depending on the brand, quality, power, and other factors, so you also need to plan your budget before buying. At the same time, with the development of technology, the efficiency of solar panels also increases, and the price gradually decreases, so when buying, you can also pay attention to the latest developments in the market.