Reposit Learning Centre

Reviewing the SolaX G4 X1 and X3 Hybrid Inverters

Written by Gemma Cullan | Apr 1, 2025 2:30:00 AM

Hybrid inverters are a crucial component of modern solar and battery storage systems, acting as the central hub for managing energy flow between solar panels, batteries, the grid, and your home. The SolaX G4 series, including the single-phase X1 Hybrid G4 and the three-phase X3 Hybrid G4, has garnered attention in the market. 

Now we might be slightly biased, because here at Reposit, SolaX inverters are our first choice for No Bill Systems. This is due to their reliability, ability to respond quickly to commands sent by the Reposit Smart Controller, the many ways which we can  integrate with them, and the fact they are backed by one of the largest manufacturers of inverters in the world .

Setting the bias aside, this review aims to provide a balanced perspective on their features, performance, and suitability for different applications.

 

What makes a Hybrid Inverter different from a regular inverter?

Think of a regular solar inverter like a translator for your solar panels. It takes the electricity they make (which is a bit like a direct current, or DC) and changes it into the kind of electricity your house uses (alternating current, or AC) so you can power your lights and appliances. It can also send any extra power back to the electricity grid. But, a regular inverter can't directly connect to or control batteries.

Now, a hybrid inverter is like that translator, but it also has extra skills. It can do the same job of changing solar power to usable electricity, and it can also talk to batteries. This means it can help store the extra solar power you make in a battery to use later, like when the sun isn't shining. Plus, some hybrid inverters can even keep your power on during a blackout using the battery. So, while a regular inverter just deals with the electricity coming straight from the sun, a hybrid inverter is smarter and can manage energy coming from the sun, batteries, and the grid, giving you more control over your power.

 

What are the SolaX G4 X1 and X3 Hybrid Inverters?

The SolaX G4 Hybrid inverters are designed for residential and light commercial use, offering the capability to integrate solar power generation with battery storage.

  • X1 Hybrid G4: A single-phase inverter suitable for smaller residential properties.
  • X3 Hybrid G4: A three-phase inverter designed for larger residential or small commercial installations with three-phase power requirements.

Both models boast a sleek design and a range of features aimed at maximising energy independence and savings.

 


Key Features and Performance:

  • High Efficiency: SolaX inverters are generally known for their high conversion efficiency, meaning more of the generated solar power is usable. The G4 series continues this trend, aiming for optimal energy harvesting.
  • Battery Compatibility: These inverters are compatible with a range of lithium-ion batteries, offering flexibility in choosing storage solutions. Notably, their fast response time to battery commands makes them a strong choice for systems requiring dynamic energy management.
  • Multiple Operation Modes: Users can typically configure various operating modes, such as self-use (prioritising using solar and battery power), feed-in priority (maximising export to the grid), and off-grid backup.
  • Smart Monitoring: Both inverters come with integrated monitoring capabilities, often accessible via a user-friendly app or web portal. This allows homeowners to track their energy production, consumption, and battery status.
  • Backup Power (EPS Function): A key feature of hybrid inverters is their ability to provide backup power during grid outages (Emergency Power Supply or EPS). The SolaX G4 series offers this functionality, although the power output and duration will depend on the battery capacity and load.
  • Remote Control and Firmware Updates: The inverters often support remote monitoring and firmware updates, ensuring the system can benefit from the latest features and improvements.
  • Compliance and Certifications: SolaX inverters comply with relevant Australian and international standards and certifications.


The Reposit Perspective:

As Reposit utilises SolaX G4 hybrid inverters in their "No Bill" systems, the reasons for this choice are important to consider:

  • Rapid Response to Smart Controller Commands: Reposit's intelligent Smart Controller actively manages energy flow to optimise grid participation and achieve the "No Bill" guarantee. The SolaX inverters' ability to respond quickly to the controller's signals is crucial for this real-time energy management. This allows for precise buying and selling of energy on the wholesale market and swift adjustments for grid stability services.
  • Deep Integration Capabilities: The strong relationship between Reposit and SolaX facilitates deeper integration between their technologies. This allows for more sophisticated control and data exchange, enhancing the overall performance and efficiency of the Reposit system.
  • Reliability and Performance: Reposit's selection of SolaX also indicates a level of confidence in the inverters' reliability and performance over the long term, which is essential for a guaranteed "No Bill" offering.


Potential Considerations:

While SolaX G4 inverters offer numerous benefits, here are some factors to consider:

  • Complexity: Hybrid systems, in general, are more complex than simple home and grid solar systems. Proper installation and configuration are crucial to ensure the Hybrid Inverter can direct electricity to your home, the grid and your battery.
  • Cost: Hybrid inverters are typically more expensive than standard solar inverters due to the added functionality for battery integration and grid management.
  • Battery Compatibility Limitations: While compatible with a range of batteries, it's essential to ensure chosen batteries are fully compatible with the SolaX G4 series for optimal performance and warranty. Always check the manufacturer's compatibility lists.
  • EPS Limitations: The backup power function might have limitations on the amount of power it can supply and the duration, depending on the model and battery capacity. Consider your critical load requirements during a blackout.
  • Warranty: Review the warranty terms offered by SolaX for their inverters and ensure they meet your expectations.


Conclusion:

The SolaX G4 X1 and X3 Hybrid inverters appear to be robust and feature-rich solutions for homeowners and small businesses looking to integrate solar power with battery storage. Their high efficiency, multiple operating modes, smart monitoring, and backup power capabilities make them strong contenders in the hybrid inverter market.

From Reposit's perspective, the SolaX inverters' rapid response time and deep integration capabilities are key enablers for their advanced energy management system and the "No Bill" guarantee.

However, potential buyers should carefully consider the complexity, cost, battery compatibility, and backup power limitations to determine if the SolaX G4 series aligns with their specific energy needs and budget. 

 

Have any questions about Solar and Battery systems? Get in touch today.