SolaX 15kW Inverter & Battery System 

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Solax 15kW Solar & Battery System

Power your home or business with a high-performance SolaX 15kW Inverter & Battery System from Fusion Sun Solar, designed to help Perth property owners maximise solar energy, reduce electricity costs, and enjoy reliable backup power. Combining a powerful 15kW three-phase hybrid inverter with advanced lithium battery storage, this intelligent system seamlessly manages solar generation, battery charging, and household or commercial energy consumption to deliver greater efficiency, energy independence, and long-term savings.

We supply and install SolaX 15kW hybrid inverter systems with flexible battery capacities ranging from 15.3kWh, 20.4kWh, 25.5kWh, 30.6kWh, 35.7kWh, 40.8kWh, 46.9kWh and 51kWh making it easy to choose the ideal energy storage solution for your home, commercial property, or small business in Perth. With scalable battery options, intelligent energy management, high solar input capacity, and dependable three-phase performance, a SolaX 15kW system is engineered to meet both your current and future energy requirements.

Why Choose the SolaX 15kW Inverter & Battery System?

  • Powerful 15kW three-phase hybrid inverter designed to efficiently manage solar generation, battery storage, and higher household or commercial energy demands.
  • Compatible with scalable battery capacities from 15.3kWh to 51kWh, providing flexible energy storage solutions for growing homes and businesses across Perth.
  • Supports up to 200% PV oversizing and high-current MPPT technology, helping maximise solar energy production and optimise performance with modern high-output solar panels.
  • Intelligent energy management with the SolaX monitoring app, allowing you to monitor solar generation, battery charge levels, and electricity consumption in real time from anywhere.
  • UPS-grade backup power with a switchover time of less than 10ms, ensuring essential appliances and critical loads continue operating during unexpected power outages.
  • Virtual Power Plant (VPP) ready with smart Time-of-Use scheduling and advanced energy optimisation to maximise self-consumption and support future grid integration.
  • Durable IP65-rated weather-resistant design engineered to perform reliably in Perth's harsh outdoor conditions, making it suitable for both indoor and outdoor installations.
  • Expandable battery storage gives you the flexibility to increase your energy capacity as your electricity usage grows, without replacing your existing inverter.
  • Professionally supplied and installed by Fusion Sun Solar, with expert local support, quality workmanship, and ongoing service throughout Perth.
System
Battery
Ideal For
SolaX 15kW + T-HS15.3
Battery Capacity 15.3kWh
Ideal For
SolaX 15kW + T-HS20.4
Battery Capacity 20.4kWh
Ideal For
SolaX 15kW + T-HS25.6
Battery Capacity 25.5kWh
Ideal For
SolaX 15kW + T-HS30.7
Battery Capacity 30.6kWh
Ideal For
SolaX 15kW + T-HS35.8
Battery Capacity 35.7kWh
Ideal For
SolaX 15kW + T-HS40.9
Battery Capacity 40.8kWh
Ideal For
SolaX 15kW + T-HS46.0
Battery Capacity 46.9kWh
Ideal For
SolaX 15kW + T-HS51.2
Battery Capacity 51kWh
Ideal For

Fusion Sun Solar supplies and installs SolaX 15kW inverter and battery systems in Perth with flexible battery capacities of 15.3kWh, 20.4kWh, 25.5kWh, 30.6kWh, 35.7kWh, 40.8kWh, 46.9kWh, and 51kWh, helping homeowners and businesses choose the ideal energy storage solution to maximise solar savings, ensure reliable backup power, and achieve greater energy independence.

Which Battery Size is Right for You with 15kW inverter?

Estimated Daily Energy Usage
Suggested Battery Capacity
20–30kWh
Suggested Battery 15.3kWh
30–40kWh
Suggested Battery 20.4kWh
40–50kWh
Suggested Battery 25.5kWh
50–60kWh
Suggested Battery 30.6kWh
60–70kWh
Suggested Battery 35.7kWh
70–80kWh
Suggested Battery 40.8kWh
80–90kWh
Suggested Battery 46.9kWh
Over 90kWh
Suggested Battery 51kWh

SolaX X3-HYBRID-15.0-D Inverter Specifications

The SolaX 15kW Hybrid Inverter is a powerful three-phase energy management solution, purpose-built for large homes, commercial properties, and businesses across Perth with substantial electricity demands. Designed to intelligently coordinate solar generation, battery storage, and grid power, it effortlessly supports high-load applications including multiple air conditioning systems, EV charging, workshops, commercial equipment, electric hot water systems, and other energy-intensive appliances. With advanced hybrid technology and smart energy optimisation, the SolaX 15kW Inverter & Battery System helps maximise solar self-consumption, lower electricity costs, and deliver reliable backup power for long-term energy independence.

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SolaX Battery Specification
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SolaX inverter Specification
Specification
X3-HYBRID-15.0-D
(Three Phase)
Phase
Three Phase
Rated Output Power
15kW
Recommended PV Array
Up to 30kWp
Maximum PV Input Voltage
1000V
Start-up Voltage
200V
MPPT Voltage Range
180–950V
MPPT Trackers
2
Maximum Efficiency
98.0%
Battery Voltage Range
120–800V
Maximum Charge / Discharge Current
30A
Backup Switchover Time
<10ms
Battery Compatibility
High Voltage Lithium & Lead Acid
Communication
RS485, WiFi, LAN, 4G, CT, Meter, DRM
Operating Temperature
-35°C to 60°C
Protection Rating
IP65
Ideal Application
Large Three-Phase Homes, Commercial Buildings, Farms & Small Businesses

SolaX TSYS-HS51 High Voltage Battery Specifications

The SolaX TSYS-HS51 High Voltage Battery System is an advanced energy storage solution designed to complement the SolaX 15kW Hybrid Inverter, delivering reliable power for large homes, commercial properties, and high-energy users across Perth. Built with premium LiFePO4 (Lithium Iron Phosphate) battery technology, it offers exceptional safety, long service life, and high-efficiency energy storage. With scalable battery capacities from 15.3kWh to 51kWh, the system allows you to expand your storage as your energy requirements grow, helping maximise solar self-consumption, reduce electricity costs, minimise reliance on the grid, and provide dependable backup power when it's needed most.

Specification
Value
Battery Model
TSYS-HS51
Battery Chemistry
LiFePO4 (Lithium Iron Phosphate)
Module Capacity
5.1kWh per battery module
Expandable Capacity
10.2kWh – 66.5kWh
Available Packages
5kWh, 10kWh, 15kWh, 20kWh, 25kWh, 30kWh, 35kWh & 40kWh*
Cycle Life
6,000+ Cycles
Depth of Discharge
100%
Maximum Charge Current
70A
Maximum Discharge Current
70A
Communication
CAN & RS485
Protection Rating
IP66
Installation
Floor Mounted, Stackable Design
Operating Temperature
-30°C to 53°C (with heating)
Heating Function
Built-in Battery Heating
Fire Safety
Integrated Aerosol Fire Suppression
Indoor / Outdoor Installation
Yes
Battery Expansion
Modular Plug-and-Play Expansion
Compatible Inverters
SolaX X1-VAST & X3-HYBRID Series


*Fusion Sun Solar offers the SolaX 15kW Inverter & Battery System with flexible battery capacities of 15kWh, 20kWh, 25kWh, 30kWh, 35kWh, 40kWh, 45kWh, and 50kWh, providing scalable energy storage solutions for large homes, commercial properties, and businesses throughout Perth. Battery capacity can be expanded to suit your current energy usage and future electricity requirements.

High-Performance Battery Storage for Large Homes & Businesses in Perth

SolaX 15kW Inverter & Battery Perth
  • Premium LiFePO4 Battery Technology delivers safe, high-efficiency energy storage with exceptional thermal stability, long cycle life, and dependable performance for demanding residential and commercial applications.
  • Scalable High-Voltage Battery Storage available from 15.3kWh to 51kWh, allowing your SolaX 15kW system to expand as your energy consumption increases.
  • Advanced Battery Management System (BMS) intelligently monitors cell voltage, current, temperature, and overall battery health to maximise performance, efficiency, and operational safety.
  • Integrated Aerosol Fire Suppression Technology provides an additional layer of protection, helping safeguard your battery system and giving you greater confidence in everyday operation.
  • Reliable Backup Power with UPS-Level Switchover transfers to battery power in less than 10ms, keeping essential appliances and business-critical equipment running during grid outages.
  • IP66 Weatherproof Construction is engineered to withstand Perth's harsh outdoor conditions, offering reliable year-round performance for both indoor and outdoor installations.
  • Intelligent Battery Heating Technology supports stable charging and discharging across a wide operating temperature range, ensuring reliable performance in varying weather conditions.
  • Comprehensive Safety Protection includes over-voltage, over-current, short-circuit, reverse-polarity, and over-temperature protection, ensuring safe and reliable operation of your SolaX 15kW inverter and battery system.

Why Choose Fusion Sun Solar for SolaX 15kW Solar & Battery Installation in Perth?

Ready to power your property with a SolaX 15kW Inverter & Battery System in Perth? Contact Fusion Sun Solar today for a free, no-obligation quote. Our experienced Perth solar specialists will help you choose the ideal high-voltage battery capacity, with scalable options ranging from 15.3kWh to 51kWh, tailored to your home, commercial property, or business. From customised system design and professional installation to ongoing local support, we deliver complete SolaX hybrid energy solutions that maximise solar self-consumption, reduce electricity costs, provide reliable backup power, and future-proof your investment for years to come.

Address: The Garden Office Park, Level 2, Building C, 355 Scarborough Beach Road, Osborne Park, Perth, WA 6017

Phone: (08) 6275 9000
Email: [email protected]
Map Link: maps.app.goo.gl

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Frequently Asked Questions 

Is the SolaX 15kW inverter suitable for residential properties?

Yes. The SolaX 15kW Hybrid Inverter is ideal for large three-phase homes with high electricity consumption. It is well suited for properties with multiple air conditioners, swimming pools, EV chargers, electric hot water systems, and other energy-intensive appliances. It is also an excellent solution for small businesses and commercial properties in Perth.

What battery sizes are available with the SolaX 15kW Inverter & Battery System?

Fusion Sun Solar offers battery capacities of 15.3kWh, 20.4kWh, 25.5kWh, 30.6kWh, 35.7kWh, 40.8kWh, 46.9kWh, and 51kWh. This allows you to choose a storage capacity that matches your current energy usage while providing the flexibility to expand in the future.

Can the SolaX 15kW system provide backup power during a blackout?

Yes. When installed with a compatible high-voltage battery, the SolaX 15kW Hybrid Inverter provides UPS-grade backup power with a switchover time of less than 10 milliseconds, helping keep essential appliances and selected circuits operating during grid outages.

Is the SolaX 15kW inverter compatible with high-efficiency solar panels?

Yes. The SolaX 15kW Hybrid Inverter supports high-power solar panels with dual MPPT technology and up to 200% PV oversizing, helping maximise solar generation and improve overall system performance.

Can I increase the battery capacity later?

Absolutely. The SolaX TSYS-HS51 battery system is fully scalable, allowing you to expand your battery storage as your household or business energy requirements increase, without replacing your existing inverter.