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Commissioning and Handover: What to Expect When Your Commercial Solar Goes Live

Guide · Commercial solar & battery · ~5 min read

Commissioning is the stage where your commercial solar system goes from installed to operational. Knowing what happens, and what you should walk away with, helps you hold your installer to a proper standard.

What commissioning actually means

Commissioning is the formal process of testing and verifying your solar system before it's handed over for everyday use. It confirms the array, inverters, switchboard connections and any battery or energy management gear are installed correctly, wired safely and performing to the design intent.

For a commercial site, this is more involved than a home install. There's more equipment, more points of connection, and often an existing electrical infrastructure the new system has to integrate with cleanly. The aim is simple: prove it's safe, prove it works, and leave you with the evidence.

• Electrical safety checks across the full installation
• Inverter configuration and start-up verification
• Confirmation the system is generating and feeding correctly
• Checks against the original design and your network approval

The testing that happens before you go live

Before anything is energised, our in-house team works through a sequence of checks. These cover the DC side (panels and strings), the AC side (inverters and connections) and the protection devices that keep everyone safe if something goes wrong.

This is where accreditation matters. CEC and SAA standards set the bar for how testing is done and documented, and because we don't use subcontractors, the people testing your system are the same people who built it. Nothing gets lost in translation.

• Insulation resistance and polarity testing on DC strings
• Voltage, earthing and protection device verification on the AC side
• Inverter commissioning and settings aligned to your network's requirements
• A functional check that generation and metering read as expected

Grid connection and network approval

Commercial systems can't simply be switched on. Your system needs the right approvals from your network operator, and the inverter settings often have to match specific grid connection conditions for your site and region.

This step can take time and varies by network, so it pays to factor it into your project timeline rather than treat it as an afterthought. We handle the paperwork and the technical settings so your system meets the conditions attached to your connection.

Energy management and arbitrage setup

If your system includes battery storage and AI-driven energy arbitrage, commissioning also covers how that intelligence is configured. The goal is a battery that charges when power is cheap and discharges or exports when it's dear - but it has to be set up around your actual tariff and load profile.

We tune the control strategy to your site during commissioning so it starts working with your usage from the outset. How much this is worth depends on your tariff and network, which is exactly why it's configured to your site rather than a generic default.

What you should receive at handover

Handover is where ownership of the system passes to you, along with the documentation that proves it was installed and tested properly. Keep this somewhere safe - you'll want it for insurance, maintenance, future upgrades and any warranty claims.

A proper handover pack also means a new electrician down the track can understand your system quickly, instead of starting from scratch.

• Commissioning and test results for the installation
• Electrical compliance certification
• Equipment manuals and warranty details
• As-installed documentation of the system and its key settings
• A walkthrough of monitoring and how to read your system's performance

After go-live: monitoring and ongoing performance

Going live is the start, not the finish. Monitoring lets you see what the system is generating and, where arbitrage is in play, how it's responding to your tariff over time. Early weeks are a useful window to confirm real-world performance lines up with the design.

ATI installs systems from 6.6kW through to MW scale across Australia - from rooftops like the 415kW array at DB Santasalo in Bulli to sites such as a Hunter Valley vineyard. Whatever the size, the handover standard stays the same. If you're planning a commercial system and want to understand how yours would be commissioned, a site review is the practical next step.

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