Tesla Powerwall Installer — Northern Rivers & Tweed Heads
The most recognised home battery in the world, installed by a licensed local team. 13.5kWh of backup power, a built-in solar inverter, and a 10-year warranty — from Tweed Heads to Byron Bay.
Why Homeowners Choose Tesla Powerwall
Unlike most home batteries, the Powerwall 3 has a solar inverter built directly into the unit. That means fewer components on your wall, one app to monitor everything, and a system engineered specifically to work with itself — not bolted together from separate brands.
- Full-home blackout backup – keeps your fridge, lights, internet and even air conditioning running when the grid goes down
- 13.5kWh usable storage – enough to power an average Northern Rivers household through the evening peak
- Up to 11.04kW continuous output – strong enough to start heavy loads like pool pumps, heat pumps and EV chargers
- Expandable – stack multiple Powerwall 3 units, or add a Powerwall 3 Expansion pack, as your household’s needs grow
Tesla Powerwall 3 Specifications
| Spec | Tesla Powerwall 3 |
| Usable capacity | 13.5 kWh |
| Continuous AC power output | Up to 11.04 kW |
| Solar input | Up to 20 kW DC (built-in inverter) |
| Round-trip efficiency | 97.5% |
| Expandability | Up to 4 units in parallel (54 kWh), or add a Powerwall 3 Expansion pack |
| Backup capability | Full-home backup via Backup Gateway 2 |
| Warranty | 10-year manufacturer warranty |
| Rebate eligibility | Eligible for the federal battery rebate (approx. 25% off upfront cost) |
Specifications sourced from Tesla’s Australian product documentation. Final pricing depends on your household’s system size, roof configuration and any required switchboard upgrades.
Adding Powerwall to an Existing Solar System
You don’t need a new solar system to get a Tesla Powerwall. In most cases we connect it to your existing panels using an AC-coupling method, tying the battery directly into your switchboard rather than requiring your current inverter to be replaced.
This means homeowners with an older, generation-only array can add genuine blackout backup and evening storage without a full system overhaul — and any grid connection paperwork required with Essential Energy is handled by our in-house team.
Tesla Powerwall vs Our Other Battery Brands
We install more than one battery brand because no single product is right for every home. Here’s how the Powerwall 3 compares to the other systems we supply.
| Battery | Usable Capacity | Best For |
| Tesla Powerwall 3 | 13.5 kWh (expandable) | Homeowners who want the most recognised brand, an all-in-one inverter, and strong blackout backup |
| Sigenergy SigenStor | Modular, from 8 kWh up | Households wanting a highly flexible, modular capacity that grows over time |
| Sungrow | Varies by model | Cost-conscious households wanting proven, high-volume hardware |
| GoodWe | Varies by model | Straightforward, reliable storage for standard household loads |
| BYD | Varies by model | Buyers prioritising battery cell longevity and cycle life |
Rebates That Reduce Your Powerwall Cost
Most households installing a Tesla Powerwall 3 in NSW are eligible for the federal battery rebate, which cuts roughly a quarter off the upfront hardware cost. Depending on your circumstances you may also be able to combine this with state-based support.
Use our Federal Battery Rebate Calculator to estimate your savings before you commit, or ask us to work it out for you as part of your free quote.
Frequently Asked Questions
- 01How much does a Tesla Powerwall 3 cost installed in Australia?A Tesla Powerwall 3 typically costs between $13,500 and $18,000 fully installed, including the required Backup Gateway 2. The exact price depends on your existing solar setup, any switchboard work required, and your eligibility for the federal battery rebate, which can reduce the upfront cost by around 25%.
- 02Can I add a Tesla Powerwall to my existing solar panels?Yes. The Powerwall 3 has a built-in solar inverter and can be retrofitted onto most existing solar arrays, regardless of the original inverter brand, typically via AC-coupling to your switchboard.
- 03Will a Tesla Powerwall keep my power on during a blackout?Yes, when paired with a Backup Gateway 2, the Powerwall 3 provides full-home backup and switches over automatically — strong enough to start heavy loads like pool pumps and air conditioners.
- 04How long does a Tesla Powerwall installation take?Most installations take one day on-site, though the full process from assessment to final grid connection approval with Essential Energy typically spans one to three weeks.
- 05Is Tesla Powerwall better than Sigenergy or Sungrow?Not necessarily better — different. The Powerwall’s main advantage is its integrated inverter and brand recognition; other brands we install offer more modular capacity or stronger value. We’ll recommend the best fit for your roof, budget and usage.
- 06Do you install Tesla Powerwall outside Tweed Heads?Yes. Our teams service the entire Northern Rivers and Far North Coast region, including Banora Point, Kingscliff, Casuarina, Pottsville, Murwillumbah, Mullumbimby, Byron Bay, Ballina and Lismore.
Ready to Talk Tesla Powerwall?
Book a free, no-obligation assessment with our Clean Energy Council accredited team and get a fixed quote tailored to your home or business.