What If the Installation Records Can’t Be Trusted? The Forensic Problem Behind Australia’s Battery Boom

Australia’s rapid uptake of residential battery storage is changing the type of electrical systems fire investigators are encountering at residential fire scenes.

But a recent investigation into allegations surrounding the federal Cheaper Home Batteries Program raises another issue that has received far less attention. What happens when the records we rely on to understand how a battery system was installed cannot automatically be trusted?

Freedom of Information documents obtained by ABC News revealed 95 tip-offs made to the Clean Energy Regulator alleging conduct including staged installation photographs, forged signatures, the use of unlicensed workers and incomplete or unsafe battery installations. The allegations remain untested and are currently under investigation.

Allegations of misconduct should not be treated as evidence that a particular installation was defective, nor should a defective installation automatically be treated as the cause of a subsequent fire. But from a fire investigator’s perspective, the allegations raise a much broader issue about the integrity of evidence.

The installation record can become part of the fire investigation

When investigating a fire involving a residential battery system, we are not simply looking at the remains of the battery. We are attempting to reconstruct what existed before the fire.

How was the system configured? Who installed it? Was it correctly connected? What components were used? Were there abnormalities during commissioning? Had faults previously been recorded? Was the system modified after installation?

A significant fire can destroy many of the physical answers to those questions. This is why photographs, electrical documentation, commissioning records, equipment serial numbers, monitoring data and installer records can become extremely important pieces of evidence.

Fire investigation guidance places considerable emphasis on systematic documentation and the preservation of information. Kirk’s Fire Investigation notes that photographs, evidence records, electrical information and other documentary material form part of the information used to reconstruct a fire scene, while photographs should accurately represent what was actually present.

The integrity of digital photographs matters as well. Investigative guidance recommends preserving original images and maintaining them in an unaltered state because manipulation or loss of provenance can undermine their evidentiary value. That makes the allegations surrounding staged photographs particularly relevant to fire investigators.

Why installation photographs matter

Under the Small-scale Renewable Energy Scheme, installers seeking small-scale technology certificates, or STCs, are required to provide evidence about installations. The Clean Energy Regulator currently requires geotagged and time-stamped photographs at different stages of a battery installation, including job setup, mid-installation, testing and commissioning. Photos are also required to verify battery and inverter serial numbers.

Since March 2026, additional geotagged and time-stamped photographs of critical labels and signage have also been required. Those photographs serve a regulatory purpose.

But following a fire, they may serve another purpose entirely. They may show the pre-fire configuration of equipment that has subsequently been heavily damaged or destroyed. They may identify the original position of cables, the clearances around the battery, the number and model of battery modules installed and they may also help establish whether the configuration found after the fire was consistent with the configuration claimed when the rebate was obtained.

If a photograph was staged, altered or taken at another time or location, the problem therefore extends beyond the administration of a government rebate. Potential evidence about the pre-fire condition of the installation may also have been compromised.

Compliance is not the same thing as causation

Finding something wrong with an installation does not establish the cause of a fire.

A fire investigator cannot simply identify a non-compliant cable, an incorrectly positioned component or an unlicensed installer and conclude that the battery caused the fire. The scientific method still applies.

The investigator must determine the area of origin, identify and test reasonable ignition hypotheses, examine the electrical system and consider the fire development and damage.

Most importantly, there must be a technically supportable connection between the identified condition and the ignition sequence.

Was there evidence of a loose connection? Was there abnormal resistance heating possible at the identified connection? Was there evidence of electrical arcing? Did the battery management system record abnormal cell temperature, voltage or current? Was there evidence of an internal battery failure? Did a fault occur elsewhere in the electrical installation? Could the battery have been damaged by a fire originating somewhere else?

These are very different questions from simply asking whether the paperwork was compliant.

Fire investigation methodology requires hypotheses to be developed and tested against the available evidence rather than selecting a cause because it initially appears plausible. Kirk’s describes this process as drawing upon multiple sources of information, developing alternative hypotheses and testing them against the available data.

That principle becomes especially important where there are concerns about the reliability of part of the documentary record.

The scale of the rollout makes this significant

More than 530,000 batteries have reportedly been installed under the federal program since July 2025. ABC reported that more than 3,600 had been inspected by the regulator by September 2026.

The Clean Energy Regulator's published results to 30 June 2026 recorded 3,425 inspections covering 478,176 installed batteries at that point in the rollout. Across more than 285,000 individual inspection checklist items, 93.49 per cent were recorded as compliant, 1.28 per cent required rectification and 5.23 per cent were identified as areas for improvement. Importantly, the regulator itself states that it is too early to draw strong conclusions about overall technical compliance across the scheme.

The available information does not justify a conclusion that hundreds of thousands of Australian batteries are unsafe. But the sheer speed and scale of deployment means insurers, loss adjusters, electrical engineers and fire investigators will inevitably encounter increasing numbers of fire claims where a battery installation forms part of the investigation.

We need to be prepared for that.

What I would obtain following a battery fire

For a fire involving a residential or commercial battery installation, I would want the investigation to extend beyond the physical battery remains. Where available, investigators should obtain the original installation photographs together with their metadata, rather than screenshots or compressed copies.

I would also seek the electrical certificate of compliance, the installer’s electrical licence and battery accreditation details, commissioning and testing documentation, battery and inverter serial numbers, equipment specifications, as-built drawings or system diagrams, STC applications and declarations, retailer and installer records, warranty and maintenance history and any previous fault reports.

Digital evidence may be equally valuable.

Battery management system information, inverter logs, monitoring-platform data, fault codes, temperature records and operating history may provide information about what the system was doing immediately before the incident.

Where recovery or litigation is contemplated, the battery, inverter, associated conductors and relevant electrical equipment should also be preserved so that appropriate examination and testing can occur.

Photographs and documents should then be treated as pieces of evidence to be corroborated against one another and against the physical scene.

Not as facts simply because they exist in a file.

The real issue is evidence integrity

The Clean Energy Regulator has said investigations into the allegations are active and that compliance action can include removal from the scheme and civil or criminal enforcement. The government is also moving toward a national technical regulatory framework for consumer energy resources. On 11 September 2026, energy ministers endorsed a framework providing for a National Consumer Energy Resources Technical Code covering technologies including battery and solar inverters. Stronger technical oversight is welcome.

But there is an important lesson here for those of us investigating fires.

A rebate approval is not proof that an installation was safe. An installer declaration is not proof that the work occurred exactly as described. A photograph is not necessarily proof of the condition of a system unless its provenance can be established. And evidence that an installation was non-compliant is not, by itself, evidence that the non-compliance caused the fire. Each of those propositions has to be tested.

The transition toward household energy storage is happening quickly. Fire investigation practices need to evolve just as quickly.

As batteries become an increasingly normal part of Australian homes, one of our most important tasks will be ensuring that we preserve and interrogate not only the physical evidence left after the fire, but also the digital and documentary trail that tells us what existed before it.

Because sometimes the most important evidence in a battery fire may have been created long before the fire ever occurred.