Summation of Supplies – Why This Is the Defect Nobody Told You About

Pat Southwell

Published on: 02/09/2026

Summation of supplies is one of the most misunderstood topics in modern solar and battery installations—and Pat Southwell admits it wasn't something he immediately understood either. In this honest and practical breakdown, he explains why it's becoming a major compliance issue, the simple four-step process he now uses on every job, and the key mistake that leads to most defects.

Compliance & Standards

Battery Rebate Safety: These Key Tests Are Essential

Pat Southwell

Published on: 02/09/2026

With the launch of the Federal Government's Cheaper Home Batteries Rebate Scheme, we're about to see a serious uptick in grid-connected battery installations across Australia — and authorities will be ramping up inspections to make sure these are done safely. Here's two key tests installers must undertake on new systems.

Battery Systems

Hidden Defects in Solar Battery Installations: What Inspectors Look For

Pat Southwell

Published on: 02/09/2026

Solar battery installation inspections are essential. They ensure systems are safe, compliant, and function optimally. While my previous blog outlined the common defects found during battery inspections, this instalment will focus on harder-to-spot issues.

Battery Systems

Common Battery Installation Issues: Insights from an Electrical Inspector

Pat Southwell

Published on: 02/09/2026

As home battery systems start to go mainstream, the focus on the safety and compliance of these systems becomes ever more critical. In this post, I will navigate the complexities of grid-connected battery system installations.

Battery Systems

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