(Cape Town homeowners, take note)
Load shedding isn’t going anywhere — and for many Cape Town homeowners, backup power has gone from luxury to necessity. But here’s the catch: if your inverter or lithium battery bank isn’t installed and certified correctly, you could lose more than just your lights. Every year, South African insurers reject claims for fires and damage caused by non-compliant backup systems. The solution? A simple, yet critical document — the Certificate of Compliance.
Why the Certificate of Compliance (CoC) Matters
A Certificate of Compliance (CoC) is a legal document issued by a qualified, registered electrician that confirms your electrical work meets the requirements of the Occupational Health and Safety Act and SANS 10142 wiring regulations.
If your backup system is tied into your DB board (even partially), you must have a valid CoC for the installation. Without it:
- Your insurance can reject claims after an electrical fire or equipment failure.
- You can be held legally liable for damage caused to neighbouring properties.
- Selling your property becomes complicated — buyers and conveyancers will request the CoC before transfer.
The Lithium Battery Risk You Can’t Ignore
Lithium batteries are highly efficient, but they carry a unique hazard called thermal runaway — an uncontrolled rise in temperature that can cause a fire or explosion. This can be triggered by something as simple as overcharging or a manufacturing defect.
Lithium battery fires are particularly dangerous because:
- They create their own oxygen supply, so they can’t be smothered.
- Standard water or foam extinguishers don’t work — in fact, water can react violently with battery components, making the fire worse.
- They release highly toxic fumes that are dangerous to inhale.
It’s not just the batteries. Substandard components or improper wiring can cause electrical arcing and overheating, also leading to fires. Cutting corners on certified equipment is a high-risk decision that can compromise your safety and void your cover.
Your Responsibilities as a Homeowner
- Hire a registered electrician — check credentials with the Department of Employment and Labour.
- Insist on a CoC after installation — this is your proof the work meets national safety standards.
- Understand CoC rules — any modification to your system voids the existing certificate, so you’ll need a new one if changes are made.
- Ensure proper placement and ventilation for lithium batteries.
- Schedule annual professional maintenance to keep your system safe and compliant.
- Keep panels clean and watch for warning signs like unusual smells, noises, or visible damage.
If your system is completely stand-alone (for example, a portable generator or plug-in UPS), a CoC is usually not required — but as soon as it connects to your DB board, it’s non-negotiable.
Emergency Preparedness
If something does go wrong, your reaction matters:
- Know where your system’s emergency shutdown switch is located.
- Have a clear evacuation plan — especially in multi-occupant or commercial settings.
- Never try to put out a lithium battery fire with a standard extinguisher — leave immediately and call emergency services.
- For commercial systems, consider a separate room or building with a fire suppression system.
Insurance Considerations
To protect your investment:
- Inform your insurer about your backup system and declare all components, including panels and batteries.
- Check if your insurer has specific installation or safety requirements.
- Ensure your system is installed by an accredited professional so your cover remains valid.
Meeting these requirements will help ensure a smooth claims process if you ever need it.
Final Word
Your backup system is an asset — but without the right compliance, it can quickly become a liability. Install it correctly, certify it with a valid CoC, maintain it annually, and keep your insurer informed. The cost of getting it right is far less than the cost of a failed claim after something goes wrong.
Yours faithfully,
Jodi of Team Hot Prop
