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This Auckland Home Went All Out with A 52 Solar Panel System

  • Writer: Sunny
    Sunny
  • Dec 17, 2025
  • 2 min read

Location: Flat Bush, Auckland

solar panel system on auckland home

Industry: Residential

System Installed: 18.72 kW Solar + 17.4 kWh Battery Storage

Installation Date: December 2025

Installer: Solar Hub NZ Limited


Project Background

A residential property in the growing Auckland suburb of Flat Bush was seeking to reduce its long-term energy costs and environmental footprint. The homeowner reached out to Solar Hub NZ for a high-performance solar system tailored to the home’s unique structure and energy profile.


The Challenge

The home featured a TPO membrane roof, a lightweight, waterproof roofing material that poses challenges for traditional solar mounting systems due to its sensitivity and the need to avoid penetrations. A customised solution was needed to ensure both optimal energy production and full protection of the roofing membrane.


Additionally, the property’s high energy usage — over 26,000 kWh per year — demanded a system that could maximise available roof space for solar production, while maintaining battery storage for peak-time usage.


The Solar Hub Solution

To overcome the roofing challenge, Solar Hub deployed its specialised "sticky panel" installation method — a non-invasive adhesive mounting solution designed specifically for membrane roofs. This technique preserved the roof’s integrity while enabling efficient solar panel placement across a broad surface area.

  • System Size: 18.72 kW

  • Solar Panels: 52 x GoodWe 360W modules — selected for their compact size and sticky adhesive backs, which allowed more panels to be installed across the roof.

  • Inverter: 15 kW Deye Hybrid Inverter

  • Battery: 17.4 kWh Micromall Lithium-Ion Storage

  • Mounting: Non-penetrative adhesive solution, ideal for membrane roofing


Outcome & Results

  • Estimated Annual Bill Savings: Over $5,000*

  • Projected Bill Savings over System Lifetime (25 years): Over $170,000*

  • Projected Lifetime Net Savings: Over $110,000*

  • Grid Consumption Offset: 84%

  • Export to Grid: 57% of generated energy

  • Self-Consumption: 43%

  • Environmental Benefits:

    • 3 tonnes of CO₂ avoided annually

    • Equivalent to 232,997 km of car travel or planting 476 trees


*DISCLAIMER: These savings projections are calculated according to Ecotricitie's export rates https://ecotricity.co.nz/solar


The system design not only maintained the waterproofing and structural integrity of the roof, but also enabled greater panel coverage thanks to the lower-wattage, space-efficient 360W modules.

Why Solar Hub?

Solar Hub’s ability to engineer and install on complex roof types highlights its end-to-end capability. The use of adhesive-mounted panels on a TPO membrane roof showcases a deep understanding of both structural requirements and solar performance optimisation. The project also benefited from:

  • In-house design and engineering

  • 10-year inverter and battery warranties

  • 10-year workmanship guarantee

  • Seamless documentation for smart meter upgrade


Get a free quote today to find out exactly how much you could be saving

 
 
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