Tesla Powerwall 3 Expansion Pack
Homeowners and businesses across Noosa, Brisbane, Gympie and the Sunshine Coast can expand their home battery storage with the Tesla Powerwall 3 Expansion Pack – the latest way to boost your usable energy capacity without replacing your existing system.
Designed to work seamlessly with the Powerwall 3, the Expansion Pack adds an additional 13.5 kWh of storage, giving you more energy for night-time use, protection during blackouts, and greater independence from rising electricity costs.
Tesla Powerwall 3 Expansion Pack – Now Available Across the Sunshine Coast
The Tesla Powerwall 3 Expansion Pack is now available to homeowners and businesses across the Sunshine Coast, Brisbane, Gympie and Noosa. If you already have a Tesla Powerwall 3, this add-on allows you to increase your battery storage capacity without replacing your existing system — making it easier to achieve greater energy independence and reduce your reliance on the grid.
Designed as a battery-only extension, the Expansion Pack connects directly to your existing Powerwall 3. It uses the built-in inverter from your current unit, keeping installation simple and streamlined. Your solar panels can then store more excess power during the day, giving you more usable energy at night, during peak tariff periods, or in the event of a blackout.
With the Tesla app, you can track storage levels, monitor performance, and control how your home uses stored energy — all in real time. Compact, durable, and engineered for indoor or outdoor installation, the Expansion Pack is built to perform reliably in the Sunshine Coast’s heat, humidity and storm-season conditions.
Why Choose the Tesla Powerwall 3 Expansion Pack?
The Tesla Powerwall 3 Expansion Pack adds 13.5 kWh of extra battery storage to your existing Powerwall 3 system, giving you longer-lasting solar power at night and more reliable backup protection during outages. It’s the ideal way to expand your home energy storage without the cost or complexity of installing another full battery unit.
More Storage Without Extra Hardware
Adds 13.5 kWh of storage to your existing Powerwall 3 using the same inverter.Easy, Seamless Integration
Connects directly to your Powerwall 3 and is monitored and controlled through the Tesla app.Scales With Your Needs
Add up to three expansion packs to a single Powerwall 3 for more than 40 kWh of total storage capacity.Greater Energy Independence
Store more solar for night-time use, reduce grid reliance and maintain backup power during outages.Engineered for Queensland Conditions
Compact, durable and designed for reliable performance in heat, humidity and coastal environments.
Discover the Powerwall 3 Expansion Pack
Backup power capability
The Reserva is capable of backup power and black starts – it charges and discharges even during a power outage. This way, you remain independent and reliably supplied, even in emergencies.
Status display
The battery status indicator shows you important information such as charge level or battery status right on the device.
Guaranteed performance
Comes with 10 years warranty as standard.
Slim, space-saving design
The Fronius Reserva impresses with its slim design and robust construction (-20 to +55 °C). It fits into the tightest of spaces, such as garages, and offers maximum installation flexibility.
Maximum adaptability
The Fronius Reserva modules are easy to stack - from 6.3 to 15.8 kWh per tower. For larger storage capacities, you can connect up to four towers in parallel and achieve up to 63 kWh - without any additional devices such as combiner boxes.
How to Order Your Tesla Powerwall 3 Expansion Pack
Ready to increase your home’s energy storage capacity? Here’s how to get started with SolarWide:
1. Request a Quote
Get in touch with SolarWide for a tailored assessment based on your existing Powerwall 3 and energy usage.
2. Confirm System Compatibility
Our accredited technicians will review your setup and recommend the right number of expansion units for your needs.
3. Schedule Installation
SolarWide’s certified installation team ensures a smooth, professional upgrade with minimal disruption to your home.
4. Start Enjoying More Stored Solar
Use the Tesla app to monitor storage, track usage and enjoy greater independence from the grid — day and night.
FAQs
Can I add a Tesla Powerwall 3 Expansion Pack to my existing Powerwall 3 system?
Yes. The Tesla Powerwall 3 Expansion Pack is designed specifically to pair with an existing Powerwall 3. It connects directly and uses the Powerwall 3’s built-in inverter, so there’s no need for additional hardware. This makes it a cost-effective and seamless way to increase your home’s battery storage capacity.
How much extra storage does the Powerwall 3 Expansion Pack provide?
Each Expansion Pack adds 13.5 kWh of usable storage. You can install up to three expansion packs on a single Powerwall 3, giving you over 40 kWh of total stored energy. This is ideal for homes with high electricity usage, EV charging, pools, or those wanting longer blackout protection.
Will the Expansion Pack help during power outages?
Yes. When paired with your Powerwall 3, the Expansion Pack improves your home’s backup duration and available stored power during outages. The system automatically switches to battery power during a blackout, helping keep essential circuits and appliances running.
