Tesla Powerwall 3 Expansion Pack in Busselton
Take control of your home energy with the Tesla Powerwall 3 Expansion Pack — the smart, modular upgrade that boosts your storage capacity and enhances your backup power.
Tesla Powerwall 3 Expansion Pack Now Available in Busselton
Homeowners across Busselton are upgrading their solar systems with the new Tesla Powerwall 3 Expansion Pack, a high-performance storage add-on designed to increase capacity and strengthen backup protection. For anyone already running a Powerwall 3, this upgrade is the simplest way to store more solar energy and take greater control of household electricity usage.
The Expansion Pack is a battery-only module that connects directly to your existing Tesla Powerwall 3. Because it uses the Powerwall 3’s built-in inverter, installation is streamlined and system efficiency remains high.
Once installed, the Expansion Pack allows your home to:
- Store more excess solar energy during the day
- Use clean stored power during evening peak periods
- Maintain essential circuits during outages
- Support electrification needs such as EV charging
- Improve overall solar self-consumption
Why Choose the Tesla Powerwall 3 Expansion Pack?
The Powerwall 3 Expansion Pack adds 13.5 kWh of extra storage to your existing Powerwall 3, helping you store more solar, improve backup protection and get greater value from your energy system.
Some key advantages include:
- Extra Storage Capacity: Boost your system by 13.5 kWh without installing another inverter.
- Easy Integration: Connects directly to your Powerwall 3 and is managed automatically by the main unit.
- Rebate-Ready: Eligible for the Federal Cheaper Home Batteries Program starting July 1, 2025.
- Scalable Design: Add up to three expansion packs for a total of 40.5 kWh of additional storage.
- Greater Energy Independence: Use more of your own solar day and night, reduce grid reliance, and protect your home during outages.
How to Order Your Tesla Powerwall 3 Expansion Pack
Ready to expand your home’s energy storage? Here’s how to get started:
- Get a Quote: Contact us for a tailored assessment of your existing Powerwall 3 system and your storage needs.
- Check Rebates: We’ll guide you through available federal and state incentives to help reduce your upfront costs.
- Schedule Installation: Our accredited team will install and configure your expansion pack quickly and professionally.
- Start Optimising Your Energy: Track your solar generation, stored energy and backup performance through the Tesla app.
Expansion Packs are in strong demand and rebate programs can change, so early bookings are recommended.
Secure your installation today and take the next step toward true energy independence.
Technical Specifications — Powerwall 3 Expansion Pack
Whether you live in central Busselton or by the coast, SigenStor delivers reliable power year-round. It’s compact, quiet, and ready for future energy demands.
Environmental Specifications
- Operating Temperature Range: –20°C to 50°C
- Humidity Tolerance: Up to 100% RH (condensing)
- Recommended Storage Temperature: –20°C to 30°C
- Initial State of Energy: Pre-charged to approximately 25%
- Maximum Installation Altitude: Up to 3000 m
- Weather Rating: Suitable for both indoor and outdoor installations
Mechanical Specifications
- Unit Dimensions: 1105 × 609 × 168 mm
- Weight (Wall-Mounted With Cover & Bracket): 118.5 kg
- Weight (Battery Module Only – Expansion): 110 kg
- Mounting Options: Can be floor-mounted or fixed to a wall
- Stacking Ability (Floor Mount): Supports up to three Expansion Packs behind a single Powerwall 3
- System Compatibility: Designed exclusively for use with the Powerwall 3
- Connection Method: Links to the main unit via the dedicated Expansion Harness
FAQs
Can the Expansion Pack work without a Powerwall 3?
No. The Expansion Pack is designed to work exclusively with the Tesla Powerwall 3 and cannot operate as a standalone battery. It relies on the Powerwall 3’s integrated inverter and control system.
How many Expansion Packs can I add to one Powerwall 3?
A single Powerwall 3 can support up to three Expansion Packs, giving you an additional 40.5 kWh of storage on top of the base battery.
Does the Expansion Pack provide backup power during outages?
Yes. When paired with a Powerwall 3, the Expansion Pack increases your available backup capacity. The Powerwall 3 manages both units to keep essential circuits running during grid outages.
Can I install the Expansion Pack outdoors?
Yes. The Expansion Pack is rated for indoor or outdoor installation and is designed to operate reliably across Australia’s temperature extremes, including coastal and regional environments.