Closed· Confirmed
Integrated Solar Solutions
Acacia Ridge, QLD
Closed
15 January 2026
Trading since
6 March 2000
Systems installed (est.)
~100
Size
Medium
Why we think this
Closed because ABN 56145955111 (INTEGRATED SOLAR SOLUTIONS PTY LTD) cancelled on 6 November 2017; Business name INTEGRATED SOLAR SOLUTIONS cancelled on 15 January 2026. Closure dated 15 January 2026, from ASIC business names: Business name INTEGRATED SOLAR SOLUTIONS cancelled. Against that: ABN 99854416820 (SPARKES, TREVOR MICHAEL) is still active; ABN 53000983700 (DOWNER EDI ENGINEERING POWER PTY LTD) is still active. Google and websites often lag a collapse, so the registers win.
The date comes from: ASIC business names: Business name INTEGRATED SOLAR SOLUTIONS cancelled.
The business has stopped trading: a register, Google or the industry's review sites say so.
What customers said
2 SolarQuotes reviews
The 5 star reviews say
There are no 5-star reviews to summarise.
The 1 star reviews say
The customer was sold a 6kW system on a promise of zero bills and quarterly rebates. After the October 2019 install, feed-in did not work and the first bill was $421.82. The company blamed Origin Energy, attended twice, and feed-in later worked, but the customer says they are $1200 out of pocket from missing rebates and bills.
Summaries of the reviews, written by us from the public reviews.
The evidence
The legal entities behind it
SPARKES, TREVOR MICHAEL
ABN 99854416820 · Individual/Sole Trader · Active · since 17 August 2023
Trading names: INTEGRATED SOLAR SOLUTIONS
DOWNER EDI ENGINEERING POWER PTY LTD
ABN 53000983700 · Australian Private Company · Active · since 6 March 2000
Trading names: xDNA, Downer Defence Systems, Downer Defence Services, Downer Professional Services, DOWNER EDI ENG. POWER, DOWNER ENGINEERING POWER, INTEGRATED SOLAR SOLUTIONS, RALPH M LEE MOTOR REWINDS
INTEGRATED SOLAR SOLUTIONS PTY LTD
ABN 56145955111 · Australian Private Company · Cancelled · since 6 November 2017
Trading names: INTEGRATED SOLAR SOLUTIONS, SUNLINC, Trading name, SUNLINC, SUNLINC
INTEGRATED SOLAR SOLUTIONS
Business name · Cancelled · since 15 January 2026
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