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A guide to choosing an inverter and battery for your home in the EU

Apr 10,2024 | EASUN OEM

With the popularity of renewable energy and the increasingly perfect power network in the EU, more and more households are beginning to consider installing inverters and battery systems to achieve self-sufficient energy supply, reduce dependence on traditional power grids, and reduce energy consumption. costs and reduce carbon emissions. However, with the dazzling array of inverters and battery products on the market, how to choose the right equipment for your home has become a problem that needs serious consideration. This guide is designed to help households in the EU understand how to choose inverters and batteries to ensure efficient, safe and stable operation of the system.

1. Understand household energy needs

Before choosing an inverter versus a battery, you first need to understand your home’s energy needs. This includes information such as the power of daily electrical equipment in the home, the time of electricity use, and peak electricity demand. By understanding this information, you can calculate the electricity and maximum power required by your home every day, thus providing a basis for subsequent inverter and battery selection.

2. Inverter Selection Guide

Inverter type selection
Inverters are mainly divided into two types: pure sine wave inverters and modified wave inverters. The current waveform output by the pure sine wave inverter is consistent with the mains waveform and is suitable for all household appliances, especially sensitive equipment such as computers and televisions. Modified wave inverter is suitable for some equipment that does not have high requirements on current waveform, such as light bulbs, electric fans, etc. Considering the diversity of household electrical equipment, it is recommended to use a pure sine wave inverter.

Inverter power selection
The power of the inverter should be determined based on the maximum power needs of the home. Generally speaking, the power of the inverter should be slightly larger than the maximum power demand of the home to cope with possible transient high power loads. At the same time, the overload capacity and efficiency of the inverter must also be considered to ensure that it can maintain stable performance under long-term operation.

Inverter brand and quality
Choosing an inverter from a well-known brand and reliable quality is the key to ensuring stable operation of the system. When choosing an inverter, you can pay attention to factors such as product certification, user reviews, and after-sales service in order to choose a cost-effective product.

3. Battery Selection Guide

Battery type selection
Common battery types currently on the market include lead-acid batteries, lithium-ion batteries, and nickel-metal hydride batteries. Lead-acid batteries are relatively low-priced, but have low energy density, heavy weight, and relatively short lifespan; lithium-ion batteries have high energy density, light weight, and long lifespan, but are relatively expensive; and nickel-metal hydride batteries are somewhere in between. Considering household usage scenarios and cost factors, lithium-ion batteries are an ideal choice.

Battery capacity selection
Battery capacity should be determined based on the household's average daily power needs and storage time. Generally speaking, the battery capacity should meet the household's electricity needs during periods of power outages or low electricity prices. At the same time, the charging speed and discharge depth of the battery must also be considered to ensure that the battery can be recycled and extend its service life.

Battery safety and environmental protection
The safety and environmental protection of the battery are also important factors to consider when selecting. You should choose a battery with overcharge, over-discharge, over-temperature and other protection functions to ensure safety during use. In addition, we must also pay attention to the environmental performance of the battery and choose products that comply with EU environmental standards to reduce the impact on the environment.

4. Matching and installation of inverter and battery

Matching of inverter and battery
After selecting the inverter and battery, you also need to ensure that they are compatible. The input voltage and current of the inverter should match the output voltage and current of the battery to ensure that the system can operate properly. In addition, the charging power of the inverter and the charging speed of the battery must also be considered to ensure that there will be no overcharging or undercharging during the charging process.

Installation and commissioning
The installation of inverters and batteries should be carried out by professionals to ensure safety and stability during the installation process. After the installation is completed, the system needs to be debugged and tested to ensure that the inverter and battery can work properly and meet the household's electricity needs.

5. Use and maintenance

Precautions for use
When using the inverter and battery, you should comply with the operating specifications in the product manual to avoid improper operations such as over-discharge and overcharge. At the same time, check the working status of the inverter and battery regularly to ensure they are in good condition.

Regular maintenance and care of your inverter and battery can extend their life and maintain efficient performance. This includes cleaning equipment surfaces, checking connecting lines, replacing aging parts, etc. Also, keep an eye on the battery's electrolyte level and temperature to make sure it's operating within normal limits.

6. Conclusion

Choosing the right inverter and battery for a home in the EU is a process that requires comprehensive consideration of many factors. By understanding your home's energy needs, choosing the right inverter type and power, picking the right battery type and capacity, and ensuring the compatibility of the inverter and battery, you can ensure the efficient, safe, and stable operation of your home energy system. At the same time, complying with operating specifications and performing regular maintenance and upkeep during use is also the key to ensuring system performance. We hope this guide can provide useful reference for households in the EU when choosing inverters and batteries.