Trentham Energy

Closed· Confirmed

On Grid Off Grid Solar

Kiama, NSW

Closed

19 November 2025

Trading since

16 August 2003

Systems installed (est.)

~800

Size

Large

Why we think this

Closed because ABN 52743193926 (PARKER, JONATHAN JAMES) cancelled on 2 December 2025; Business name ON GRID OFF GRID SOLAR cancelled on 19 November 2025. Closure dated 19 November 2025, from ASIC business names: Business name ON GRID OFF GRID SOLAR cancelled.

The date comes from: ASIC business names: Business name ON GRID OFF GRID SOLAR cancelled.

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

The evidence

  • 2 December 2025ABN 52743193926 (PARKER, JONATHAN JAMES) cancelledABN register · check it
  • 19 November 2025Business name ON GRID OFF GRID SOLAR cancelledASIC business names register · check it

The legal entities behind it

  • PARKER, JONATHAN JAMES

    ABN 52743193926 · Individual/Sole Trader · Cancelled · since 2 December 2025

    Trading names: Illawarra Solar Energy, ON GRID OFF GRID SOLAR, AUSTRALIAN COMMERCIAL FISHING LICENCES, Trading name, john parker

  • ON GRID OFF GRID SOLAR

    Business name · Cancelled · since 19 November 2025

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.

On Grid Off Grid Solar: Closed (Kiama, NSW) | Trentham Energy