When choosing the right off-grid solar system for you, you can refer to the following clear point representations and inductions, and combine the relevant figures and information in the reference article to make a decision:
1. Clarify needs and budgets
Electricity demand: First determine your power needs, including the type of appliances you use on a daily basis, the power and the approximate time of electricity use each day. This will determine the power of the solar panels required and the energy storage capacity of the battery.
Budget: Set a reasonable budget range based on the financial situation of the individual or family. This will help to find a balance between performance and price when selecting components subsequently.
2. Consider the system configuration
Solar panel:
Power: Choose the right solar panel power based on your power needs and budget. Typically, the power of each solar panel is between 250W and 400W.
Conversion efficiency: The higher the conversion efficiency, the more electricity the solar panel will produce under the same lighting conditions. The general conversion efficiency is between 15% and 22%.
Brand and quality: Choose well-known brands and high-quality products to ensure the reliability and durability of solar panels.
Accumulator:
Energy storage capacity: Calculate the required energy storage capacity based on power demand and the number of consecutive rainy days. Usually, 12V or 24V batteries are selected for home off-grid solar systems, with capacities ranging from 100Ah to 200Ah.
Type: Common types of batteries are lead-acid batteries, gel batteries and lithium batteries. Among them, lithium batteries have the advantages of high energy density and low self-discharge rate, but the price is relatively high.
Brand and quality: also choose well-known brands and high-quality products to ensure the stability and safety of the battery.
Controllers & Inverters:
According to the parameters of the solar panel and battery, choose the appropriate controller and inverter. The controller should have overcharge and over-discharge protection, and the inverter should be able to convert direct current to alternating current for use in household appliances.
3. Consider system installation and maintenance
Installation location: Choose a well-lit, unobstructed place as the installation location. Ensure that the solar panels can fully receive sunlight and improve the efficiency of power generation.
Installation angle: Depending on the latitude of the location, adjust the installation angle of the solar panels so that it is perpendicular to the sun’s rays to obtain maximum power generation.
Maintenance: Regularly check the operating status of components such as solar panels, batteries, controllers, and inverters to ensure that they are working properly. At the same time, care should be taken to keep the components clean and dry to avoid the impact of dust and moisture on the performance of the system.
4. Refer to actual cases and consult experts
Practical cases: Refer to the off-grid solar system cases of other users or families to understand their configuration, usage effect, and problems and solutions encountered. This helps you get a more complete picture of what is actually happening with your off-grid solar system.
Consult with an expert: Consult with a solar system installation company or an expert in a related field to learn about the latest technology trends and product information. They can provide you with professional advice and solutions based on your needs and budget.