Guwing Green

Our Work

Bespoke Projects.

A working notebook of installs that would not take a template. Heritage tiles. Copper façades. Standing-seam roofs. Commercial switchboards with no room to breathe. Each one engineered around the brief, the budget and the building.

Want to talk through a tricky roof? Our SAA-accredited engineering team has likely been on one like it before — and is happy to share what worked and what we'd do differently.

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100 kW solar install in Russell Lea NSW
FEATURED100 kW

Featured Build

100 kW · Russell Lea NSW

Sized for client load and futureproofed for ongoing maintenance and expansion. The switchboard location wasn't ideal for inverters or cabling, so cable routes and inverter mounting were specifically engineered to make future service simple.

20+

years combined engineering experience

30 MW

solar designed and delivered

40 MW

battery storage installed

The Notebook

Selected Bespoke Installs

A short collection of installs across Sydney where templates didn't apply. Tap any project for a quick brief.

  • 7.4 kW solar install in Avalon Beach NSW
    7.4 kW

    Avalon Beach NSW

    Aluminium standing-seam roof needed a special mounting design. A micro-inverter system was used as the site suffered from extensive shading throughout the day.

    • Coastal
    • Micro-inverter
    • Standing-seam
  • 7.4 kW solar install in Balgowlah NSW
    7.4 kW

    Balgowlah NSW

    Multiple roof orientations and a complex surrounding environment made this challenging. Designed to flex up in future — including a battery and EV charger powered by the solar system.

    • Battery-ready
    • EV-ready
    • Multi-array
  • 11.1 kW solar install in Bilgola Beach NSW
    11.1 kW

    Bilgola Beach NSW

    Copper façade of the house and roof. Custom mounts and a hand-made copper conduit to hide every cable. Panel and micro-inverter selection had to account for the corrosive nearby beach environment.

    • Heritage
    • Custom mount
    • Copper conduit
  • 1.95 kW solar install in Five Dock NSW
    1.95 kW

    Five Dock NSW

    After modelling site consumption, the client needed to add ~4.5 kW. The old tile section had no spare tiles, so the 5-panel addition was placed on the extension to avoid roof leaks.

    • Retrofit
    • Tile roof
    • Extension
  • 12.71 kW solar install in Coogee NSW
    12.71 kW

    Coogee NSW

    Multiple-string array on tilt frames with a long cable run, paired with a 20 kWh battery and blackout protection. An intricate build delivered over three days on site.

    • Tilt frames
    • 20kWh battery
    • Blackout backup
  • 10.56 kW solar install in Henley NSW
    10.56 kW

    Henley NSW

    A full replacement of the original terracotta tiled roof was needed to get this project across the line and keep the home leak-free for the long haul after install.

    • Re-roof
    • Terracotta
    • Watertight

20+

years combined engineering experience

30 MW

solar designed and delivered

40 MW

battery storage installed

95+

5-star Google reviews

Have a tricky roof? We'll design around it.

Heritage, copper, standing-seam, awkward orientations or commercial constraints — share the brief and our engineers will respond with a real plan, not a brochure.

Talk to an engineer