We install SolaX hybrid inverters and modular battery systems—proven technology backed by strong local warranty support. From single-phase homes to three-phase properties, we tailor the right solution for your energy needs.
SolaX Hybrid Inverters
The heart of your solar system. Our SolaX hybrid inverters combine solar generation, battery storage, and backup power in one intelligent unit.
5kW / 10kW

5kW & 10kW models for residential single-phase homes
Maximise solar harvesting with industry-leading PV oversizing capability
Ultra-fast backup switchover keeps essential loads running during outages
2-in-1 expansion function for flexible battery capacity growth
Compatible with Virtual Power Plants via OpenADR, IEEE2030.5, FCAS, and API
Surge protection on both AC and DC sides with optional AFCI
Smart Schedule, Smart Scene, and 7x24h Time-of-Use management
| Specification | 5kW | 10kW |
|---|---|---|
| Model | X1-VAST-5K | X1-VAST-10K |
| Rated Output Power | 4999 W | 9999 W |
| Max Recommended PV Array | 10 kWp | 20 kWp |
| MPPT Trackers | 3 | 4 |
| Max Input Current | 20A per MPPT | 20A per MPPT |
| Peak EPS Output | 200% for 10s | 200% for 10s |
| EPS Switchover Time | <10ms | <10ms |
15kW / 20kW / 30kW

15kW, 20kW & 30kW models for three-phase properties
Industry-leading efficiency for maximum energy harvest
Scale your system by paralleling up to 10 inverters for larger installations
Dust-tight and protected against powerful water jets for outdoor installation
<10ms switchover time for uninterrupted power during grid outages
Supports microgrid and generator function for versatile off-grid operation
Independent battery ports for expanding storage capacity
| Specification | 15kW | 20kW | 30kW |
|---|---|---|---|
| Model | X3-ULT-15K | X3-ULT-20K | X3-ULT-30K |
| Rated Output Power | 15000 VA | 20000 VA | 30000 VA |
| Max Recommended PV Array | 30 kWp | 40 kWp | 60 kWp |
| MPPT Trackers | 2 | 2 | 3 |
| Max Input Current | 36A per MPPT | 36A per MPPT | 36A per MPPT |
| Weight | 46 kg | 46 kg | 48.5 kg |
The X3-ULTRA is designed for
three-phase supply sites including larger homes, households with higher electrical loads, and workshop or commercial applications. If your property has three-phase power and you're looking to maximise solar generation and battery storage, this inverter provides the capacity and flexibility to match.
Store your solar energy for when you need it most. Our modular battery systems grow with your needs and integrate directly with SolaX hybrid inverters.
10.2 kWh to 66.5 kWh expandable capacity
Start with 2 modules (10.2 kWh) and expand up to 13 modules (66.5 kWh) as your needs grow
Lithium Iron Phosphate chemistry offers superior thermal stability and over 6,000 cycle life
Built-in heating technology ensures reliable operation even in cold temperatures down to -30°C
70A maximum current supports fast charging and high-demand discharge scenarios
Smart management with remote fault diagnosis, upgrade, and maintenance capabilities
Advanced safety features including aerosol fire suppression for precise protection
CHEMISTRY
Lithium Iron Phosphate (LFP)
MODULE CAPACITY
5.1 kWh per module
SYSTEM RANGE
10.2 kWh - 66.5kWh
CYCLE LIFE
>6,000 cycles @ 90% DOD
IP RATING
IP66 (INDOOR / OUTDOOR)
MAX CURRENT
70A (rapid charge / discharge)
OPERATING TEMP
-30°C to +53°C (with heating)
WARRANTY
10 years
*Specifications sourced from SolaX official documentation. Subject to change.
The TSYS-HS51 battery system is designed to integrate with SolaX X1 (single-phase) and X3 (three-phase) hybrid inverters. This includes the X1-VAST and X3-ULTRA models we install. The modular design allows you to start with the capacity you need today and expand as your energy requirements grow—without replacing existing equipment.
SERVICE AREAS
Gympie Region
Sunshine Coast
Brisbane
Moreton Bay
The Small-scale Renewable Energy Scheme provides upfront discounts of $2,500–$3,500+ on typical systems. These rebates reduce annually until 2030.
Queensland electricity prices have increased significantly in recent years. Solar + battery locks in your energy costs.
Battery prices have dropped over 70% in the past decade, making storage more accessible than ever.
*Rebate amounts vary based on system size, location, and certificate prices. We'll calculate your exact rebate during your site visit.
The Rudd Family brings 160+ years of building heritage together with 16+ years of solar installation experience.
The Rudd Family are part of an unbroken 6 generation line of continuous family builders since 1862
Martin has been building in the UK & Queensland for over 3 decades
Martin has been designing and installing solar systems since 2010
Martin's company is fully QBCC insured (15485031)
Martin handles design, permits, approvals, trades and certification. One point of contact.
Hi
Thank you so much for your recent enquiry with Rudd Family Builders & Solar — we’d love the opportunity to help with your project.
Whether you’re looking at solar and battery solutions, renovations, extensions, new builds, outdoor living projects, or a complete transformation of your home, our goal is to make the process straightforward, professional, and stress-free from start to finish.
As a local, family-run business established 22+ years , we pride ourselves on delivering honest advice, quality workmanship, and exceptional customer service. We understand that every project is important, and we genuinely care about achieving the best possible outcome for our clients, we are big enough to deliver any size project small enough to care.
One of our consultants will be in touch shortly to arrange a chat or a visit so we can better understand your needs and discuss the best options available to you.
In the meantime, feel free to contact us anytime with questions or ideas you’d like to explore further.
You’re also welcome to:
• Visit our website
• Read our customer reviews
• Or visit our showroom in Aura Business Park
A little about us…
Rudd Family Builders & Solar combines over 16 years of solar industry experience with 35 years of building and renovation expertise.
Our building division has a long-standing reputation for quality craftsmanship, reliability, and creating beautiful, functional spaces that families can enjoy for years to come.
Over the years, we’ve built a strong reputation through hard work, attention to detail, and treating our customers the way we would want our own family treated.
We’re proud to have:
• Over 180 five-star Google reviews with a rating of 5 stars
• 4.9 SolarQuotes rating
• Recognition in the TOP 5% of Solar Installers in Australia by SolarQuotes
• A trusted local reputation for quality building and renovation work across the Sunshine Coast & Brisbane region.
We’re incredibly proud of these achievements because they reflect the care, professionalism, and service we aim to provide every single client.
Whether your goal is to:
• Reduce your energy bills
• Add battery storage and energy security
• Renovate or improve your home
• Create better outdoor living spaces or add a Granny flat
• Increase the value and functionality of your property
• Modernise your home with quality building solutions
• Or work toward greater energy independence
—we’re here to guide you through the process with practical advice, tailored solutions, and clear communication every step of the way.
Our experienced team can assist with:
• Solar systems and battery storage
• Energy efficiency and feed-in tariff advice
• Renovations and extensions
• Outdoor living and structural improvements
• Project planning and scope of works
• Professional quoting and transparent communication throughout your project
Thanks again for reaching out to us. We genuinely appreciate the opportunity and look forward to speaking with you soon.
Lisa Rudd
Administration Manager
Rudd Family Builders & Solar
1/3 Packer Road
Baringa QLD 4551
07 5477 0610
0417 907 807
admin@ruddfamily.com.au
www.ruddfamily.com.au
Rudd Family Building & Solar is a family-run team delivering quality builds and smart solar solutions you can trust.