three-phase inverters

Three-phase inverters: what are they, how do they work, and what are their benefits?

In the dynamic world of renewable energy, making the most of our power sources is essential. And one important development in the journey towards sustainable energy solutions is the rise in three-phase inverters.

Still a fairly new technology, three-phase inverters are now beginning to grow in popularity. So, let’s dive into their fundamentals. In this article, we’ll:

  • Explain how three-phase inverters function
  • Look at their applications
  • Explore the advantages they offer in comparison to single-phase models
  • Discuss the types of three-phase inverters available in the market
  • Introduce you to the energy solutions that GivEnergy has to offer

Ready for a read?

Understanding three-phase supply

If you’re looking to combine your solar system with a battery for your home or business, one of the first things you need to know is if your home has a single phase or three-phase supply.

Single-phase supply

If you have a single-phase supply, there is one active wire and one neutral wire fed into your home.

Three-phase supply

In case of having three-phase supply, there are three active wires feeding into your home and one neutral.

Active wire (live or hot wire) carries the electrical current from the power source — such as a power station or transformer — to the electrical appliances and devices in your home. It is typically black, red, or another colour other than white or green in many countries.

Neutral wire provides a return path for the current that flows through the active wire. It completes the circuit and ensures that the current can flow back to the power source. It is generally white or grey in most electrical systems. The potential difference between the active wire and the neutral wire completes the electrical circuit necessary for the proper functioning of the appliances.

How do you know if you have single or three-phase power?

The simplest way to check is:

  • Go to your meter box
  • Carefully look in your switchboard (don’t touch anything!)

If you have three main switches, you have three-phase power supply. If you only have one, you have single-phase power supply. It’s as simple as that.

Load distribution

Three-phase power is the ideal solution for properties that require more power to keep up with our increasingly electrified lives.

Its main advantage lies in its ability to efficiently distribute and balance the electrical load across three phases.

(As opposed to relying on a single-phase.)

In the past, most homes had a single-phase electrical connection. This used to be sufficient, because electrical requirements were comparatively basic. Back then, lights, a refrigerator, and a television pretty much covered it.

Nowadays, almost everything we interact with relies on being plugged in. Your phone, computer, air conditioner, dishwasher, gaming console, washer dryer, oven, plus a whole plethora of other electronic devices: they’re all power-hungry. This isn’t to mention the rise in popularity of electrical vehicles!

This lifestyle change, then, has led to the rise of three-phase power in homes. And we’re not just talking about new homes being built. Today, an increasing number of homeowners are investing in upgrading their electrical connections to three-phase to meet growing demand.

Single-phase vs. three-phase inverters

So, what is a three-phase inverter and how does it operate?

An inverter is the device responsible for converting the direct current (DC) power generated by sources like solar panels into alternating current (AC) power suitable for use in homes, businesses, and industrial applications.

A three-phase inverter distinguishes itself by transforming DC power into three separate AC waveforms. This configuration is tailored to three-phase electrical systems. These systems are renowned for their enhanced efficiency, reliability, and capacity to handle larger loads compared to single-phase counterparts.

Single-phase inverters, on the other hand, generate a single AC waveform. While they are well-suited for smaller-scale installations, their limitations become apparent in larger setups.

Three-phase inverters, with their three distinct AC outputs, deliver more consistent power distribution. And, in turn, they facilitate the seamless operation of multiple electronic devices and machines.

Benefits of three-phase inverters

·       Higher power output

As mentioned previously, three-phase inverters can transmit more power than single-phase models. This becomes essential when you need more power to keep all your electrical devices (such as dishwasher and electrical vehicle) powered at once.

·       Improved efficiency

One of the standout advantages of three-phase inverters is their remarkable efficiency. By spreading the electrical load across three phases, they reduce the risk of overloading any single phase.

In turn, three-phase inverters optimise power generation and distribution. This enhanced efficiency translates not only into energy savings, but also extends the durability of electrical equipment — reducing long-term maintenance costs.

·       Reduced energy costs

Efficiency translates into lower energy costs. With a three-phase inverter, you can maximise energy production while minimising dependence on the grid.

This makes three-phase inverters an attractive option for businesses or properties with high energy needs looking to reduce their operational expenses.

·       Better voltage regulation

Three-phase inverters provide better voltage regulation than single-phase models. This means that they can help ensure that your appliances receive a consistent, reliable supply of electricity.

GivEnergy three-phase inverters

We’re introducing four different options of three-phase hybrid inverter, so you can choose the one that best fits your needs:

  • 6kW
  • 8kW
  • 10kW
  • 11kW

If you want to pair the GivEnergy three-phase hybrid inverter to a battery, we’re also offering the GivEnergy stackable battery. The stackable battery combines power with flexibility. It allows you to customise your power setup and create the ideal solution for your property.


Simply put, three-phase inverters can transmit more power than single-phase models. This makes them ideal for larger homes or commercial properties with high energy needs. Plus, they can help reduce energy costs and improve the overall performance of your electrical system.

Along with our range of single-phase hybrid inverters, we want to be able to meet the needs of properties with a higher energy demand. That’s why we’re developing the 3-phase hybrid inverter and stackable battery.

With these energy storage solutions, you can customise your product to the needs of your property.

Guest post by Micaela Vignoni– our support team star