How to Choose an Off-Grid Inverter
Now, let's discuss the most important aspect of choosing an off-grid inverter.
Please consider the following three points:
Wattage:
Wattage is one of the most important factors when choosing an off-grid inverter.
First, determine the amount of power your household electrical appliances require.
For example, if you have two fans, one refrigerator, and one television, you will need to power them with an inverter.
If the wattages of these three appliances are 70, 160, and 100 watts respectively, the required wattage would be (70*2) + 160 + 100 = 400 watts.
VA Value:
The VA value refers to the volt-ampere rating of the solar power inverter.
The best way to determine your required VA value is to divide the total output (in watts) by the power factor.
This is usually 0.8. For example, the required total output is 400 watts. The VA rating would be 400/0.8 = 500 VA.
Waveform types:
Inverters include pure sine wave, modified sine wave, and square wave.
The difference is that most home appliances operate normally with a pure sine wave, while modified sine wave is not suitable for all devices. Square wave applications are the least common.
Features of HEMAO Solar Inverters
1. Pure Sine Wave Output for Wide Load Compatibility
Many models feature pure sine wave inverter functionality, providing stable power for home appliances, commercial equipment, and energy storage systems, reducing the risk of waveform distortion.
2. Dual Input Design for Streetcars, Generators, and Solar Panels
Supports two types of inputs: streetcars and generators. Some models also support DC input from solar panels and energy storage systems, allowing for continued operation during power outages or in off-grid environments.
3. Parallel Operation Support for High Expandability
Suitable for home and small-scale commercial systems, it supports parallel operation of up to 6 units, achieving a total rated output of 90 kW. Flexible system expansion is possible.
4. Outdoor Installation Compatible, High Protection Rating (IP65), and Smart Monitoring Function
Some outdoor models feature IP65 dustproof and waterproof specifications, making them ideal for rooftops, outdoor spaces, and high-humidity environments. Remote monitoring and system management are possible via Wi-Fi, Bluetooth, and a mobile app.
5. Compatible with energy storage systems, ideal for off-grid and backup applications.
We offer not only grid-connected types but also off-grid types and backup inverters, making them suitable for residential use, remote islands and mountainous areas, microgrids, and emergency power supplies. They contribute to energy independence and securing power during emergencies.
