Inverters
Inverters differ in type and power. There are ON-GRID, OFF-GRID and hybrid – the last one can work both On grid and Off grid.
Types of inverters:
- ON GRID inverter – as the name itself suggests, this inverter is connected to the city grid and can work without a battery. It instantly converts the received energy from the solar system and adapts it to the voltages in the city network.
You automatically use the energy obtained from it, and you deliver the excess energy that you do not use to the city power grid. Just by delivering, you reduce your electricity bill.
- OFF-GRID inverter has no connection with the city network. It is connected on one side with your solar system and on the other with batteries. It automatically charges the batteries and delivers the excess energy obtained from the solar panels directly to you. So when the solar system no longer has enough light to produce energy, this inverter takes the energy from the battery, converts it into the same voltage of the city electrical grid and delivers it to you.
- HYBRID INVERTERS – they can work in both modes, both on grid and off grid. This is set in the program of the inverter itself. This is a good choice if you want to use this inverter in the sense that you can change the mode from off grid to on grid.
We prefer Off grid inverters that have no connection to the city grid, that is, you make energy with them only for you and have no connection with the distribution system.
If we know that we have chosen an Off grid inverter, it is important to determine which inverter power we need for our home. It depends on the power of the consumers in our home that are currently connected to the house.
Simply put, if those devices, for example, consume 2.3 kwh together, the power of the inverter must not be less than that, preferably a 3 kwh inverter.
So the power of the inverter must be 20-30% higher compared to the power consumption of devices in the house.
Note: In essence, it is important to know that if we need a 6 kwh inverter, for example, it is better to buy 2 of 3 kwh each than one of 6 kwh because this larger inverter requires additional costs in the form of thicker cables from the inverter to the battery And the rest, and that is why it is not wrong to use it, but it is recommended to use more inverters with less kwh.