Trentham Energy

Closed· Confirmed

Solar Australia

Sandgate, NSW

Closed

22 October 2025

Trading since

1 July 2006

Systems installed (est.)

~5,770

Size

Large

Why we think this

Closed because Google lists Solar Australia (9 Friesian Cl, Sandgate NSW 2304) as permanently closed; SOLAR AND BATTERIES AUSTRALIA PTY LIMITED (ACN 152356351) deregistered on 30 January 2026; ABN 15152356351 (SOLAR AND BATTERIES AUSTRALIA PTY LIMITED) cancelled on 22 October 2025. Closure dated 22 October 2025, from ABR: ABN 15152356351 (SOLAR AND BATTERIES AUSTRALIA PTY LIMITED) cancelled. Against that: ABN 50629376503 (SOLAR AUSTRALIA PTY LTD) is still active; ABN 93681785375 (SOLAR AUSTRALIA (SOLAS) PTY. LTD.) is still active. Google and websites often lag a collapse, so the registers win.

The date comes from: ABR: ABN 15152356351 (SOLAR AND BATTERIES AUSTRALIA PTY LIMITED) cancelled.

The business has stopped trading: a register, Google or the industry's review sites say so.

What customers said

The 5 star reviews say

The single 5-star review, from 2016, praises the sales contact, the reliable and helpful staff, and the service department, which resolved an inverter warranty claim with the manufacturer after the install.

The 1 star reviews say

The 1-star reviews say the company went into administration or liquidation, leaving warranties unhonoured and customers unable to get service. One reviewer complains of slow responses after a complaint, an inverter that failed within warranty, and a system installed differently from what was paid for.

Complaints about after sales supportComplaints about deposits or refunds

Summaries of the reviews, written by us from the public reviews.

The evidence

  • Seen recentlyGoogle lists Solar Australia (9 Friesian Cl, Sandgate NSW 2304) as permanently closedGoogle business listing · check it
  • 22 October 2025ABN 15152356351 (SOLAR AND BATTERIES AUSTRALIA PTY LIMITED) cancelledABN register · check it
  • 30 January 2026SOLAR AND BATTERIES AUSTRALIA PTY LIMITED (ACN 152356351) deregisteredASIC company register · check it
  • 26 August 2026Archived because its website stopped working. Said founded in 2006.Solar Directory · check it
  • Seen recentlyhttp://www.solaraus.com.au/ now redirects to https://ww17.solaraus.com.au/The company's website · check it

The legal entities behind it

  • SOLAR AND BATTERIES AUSTRALIA PTY LIMITED

    ABN 15152356351 · Australian Private Company · Cancelled · since 22 October 2025

  • SOLAR AUSTRALIA PTY LTD

    ABN 50629376503 · Australian Private Company · Active · since 13 November 2019

    Trading names: Solar Australia

  • SOLAR AUSTRALIA (SOLAS) PTY. LTD.

    ABN 93681785375 · Australian Private Company · Active · since 24 October 2024

  • SOLAR AND BATTERIES AUSTRALIA PTY LIMITED

    ACN 152356351 · Company · Deregistered · since 30 January 2026

  • SOLAR AUSTRALIA PTY LTD

    ACN 629376503 · Company · Registered

  • SOLAR AUSTRALIA (SOLAS) PTY. LTD.

    ACN 681785375 · Company · Registered

  • Solar Australia

    Business name · Registered

Installer gone? We look after orphaned systems.

If the company that put in your solar or battery has closed, we can check the system, chase the manufacturer's warranty and keep it running.

Solar Australia: Closed (Sandgate, NSW) | Trentham Energy