The SolaX X1 Hybrid G4 7.5kW Single-Phase Hybrid Inverter is the most powerful model in the G4 range, designed for large residential and small commercial solar systems across the UK. Combining high-efficiency conversion with hybrid flexibility, it delivers reliable, scalable energy management for users wanting to maximise self-consumption and reduce grid reliance.
Advanced Single-Phase Engineering for Larger UK Systems
With dual MPPT trackers operating across a 70–550V voltage range, the X1 Hybrid G4 7.5kW extracts maximum energy from every solar string. Offering 97.6% peak efficiency and 99% MPPT response accuracy, it maintains high yields even under variable weather or multi-aspect conditions common in British installations. Its powerful design comfortably supports larger rooftop arrays up to 11,250W PV input capacity.
Engineered for Long-Term Reliability & Protection
Built with installer practicality and long-term reliability in mind, the IP65-rated aluminium enclosure protects against rain, dust and corrosion. The fanless natural cooling system keeps sound output below 30dB, ensuring quiet operation in both indoor and outdoor environments. Integrated surge protection, residual-current detection and full G99 and EN 62109 certification make it fully compliant for grid-tied operation throughout the UK.
Key Features
- Dual MPPT inputs with 99% tracking accuracy for multi-aspect systems
- Peak efficiency 97.6% / Euro efficiency 97%
- IP65 weatherproof housing with silent fanless cooling
- Supports high-voltage LFP batteries with 30A charge/discharge
- Built-in Wi-Fi, LAN, RS485, CAN, and USB with optional 4G
- Fully G99 and EN 62109 compliant for UK grid connection
If you’re wondering how the X1 Hybrid G4 7.5kW performs in the UK’s typical cloudy and low-light conditions, its wide MPPT window and responsive tracking maintain energy generation from early morning to dusk, ensuring maximum daily yield from your array.
Specification data verified from SolaX Power X1 Hybrid G4 documentation (Version 1.0).
Seamless Integration with Solar Panels & Battery Storage
The SolaX X1 Hybrid G4 7.5kW offers advanced hybrid control for larger domestic or light-commercial systems. It connects directly with solar panels and high-voltage LFP batteries, supporting charge and discharge rates up to 30A. This allows fast energy storage and discharge during high-demand periods, helping users reduce reliance on the grid and maximise self-consumption. Direct DC coupling keeps efficiency high while simplifying installation and reducing component losses.
Smart Monitoring & Connectivity
Connectivity and monitoring are handled through SolaX Cloud, giving homeowners and installers real-time visibility of energy production, storage and grid export. The X1 Hybrid G4 7.5kW includes Wi-Fi and LAN connectivity as standard, with RS485, CAN and USB interfaces for flexible system design. Optional 4G modules ensure reliable data connection for remote or commercial installations where network access may be limited.
Compact Design & Durable Construction
Despite its higher capacity, this inverter remains installer-friendly, with a lightweight build of around 20kg and compact footprint measuring approximately 460×510×185mm. Its IP65 aluminium housing provides full protection from dust and moisture, while natural convection cooling ensures silent operation below 30dB. Ideal for plant rooms, garages or outdoor walls, it’s engineered to deliver lasting reliability in all UK conditions.
Installer Guidance & System Notes
String design & MPPT layout
Operate within the 70–550V range and maintain a balanced current (12A per tracker). The dual MPPT design allows each string to operate independently, ideal for large arrays with differing roof aspects.
Battery configuration & sizing
For systems using the X1 Hybrid G4 7.5kW, battery setups from 10–20kWh are typical for residential use, scalable beyond 25kWh for commercial properties or heavier consumption profiles.
Grid compliance & protection
Fully compliant with G99 and EN 62109 standards. Integrated Type II DC and Type III AC surge protection, RCM, and insulation monitoring ensure full grid safety and smooth commissioning.
Why We Recommend the SolaX X1 Hybrid G4 7.5kW
At Evergy, we recommend the X1 Hybrid G4 7.5kW for its outstanding scalability, proven hybrid efficiency, and robust UK-ready construction. It provides the perfect balance of flexibility and performance for large home or small business systems seeking to optimise both generation and storage.
Evergy is the renewable division of LAMPS Electrical — a trusted independent UK wholesaler with over 15 years of experience supplying professional solar and electrical equipment nationwide. Our renewables team in Oxfordshire provides technical support, compatibility guidance and verified documentation to help every installation succeed.
Compare in the SolaX X1 Hybrid G4 Range
| Model | Max PV (W) | Rated AC (W) | MPPTs | MPPT Window (V) | Max Eff. | Dimensions (mm) | Weight (kg) |
|---|
| X1 Hybrid G4 5kW | 7,500 | 5,000 | 2 | 70–550 | 97.6% | 460×510×185 | 20 |
| X1 Hybrid G4 7.5kW | 11,250 | 7,500 | 2 | 70–550 | 97.6% | 460×510×185 | 20 |
FAQs – SolaX X1 Hybrid G4 7.5kW
How does the 7.5kW model compare to smaller X1 Hybrid G4 inverters?
The 7.5kW version supports higher PV input and AC output, making it ideal for large residential or small commercial installations where greater power handling is required.
Is it compatible with SolaX or third-party batteries?
Yes — the inverter supports SolaX Triple Power and other high-voltage LFP batteries through CAN communication, offering flexible, scalable storage configurations.
Can it be installed outdoors?
Yes. The IP65 aluminium housing protects against rain and dust, while fanless cooling ensures silent, maintenance-free operation in outdoor environments.
Does the X1 Hybrid G4 7.5kW support remote monitoring?
Absolutely. The inverter connects to SolaX Cloud for real-time system tracking, fault alerts and long-term performance reports accessible via app or web.
What are the physical dimensions and weight?
The unit measures around 460×510×185mm and weighs approximately 20kg.
For expert guidance on hybrid inverter selection, system design or component compatibility, contact Evergy — the UK’s trusted distributor of solar inverters, batteries, and solar panels.