As more Australians embrace solar power, many are adding solar battery storage to increase energy independence and lower bills. But one question homeowners often overlook is just as important as choosing the battery itself:
Where should you install your solar battery at home?
Choosing the right spot isn’t just about convenience. It can affect the battery’s efficiency, lifespan, safety, and even your eligibility for rebates and warranties.
Why Solar Battery Location Matters
Your battery needs to operate in optimal environmental conditions to maintain performance over time. An incorrect location can lead to:
- Overheating or extreme cold
- Moisture exposure or flooding
- Reduced efficiency and capacity
- Safety risks or non-compliance with regulations
That’s why industry standards, including AS/NZS 5139, define clear guidelines for where and how batteries can be installed.
Best Locations to Install a Solar Battery at Home
1. Garage (Well-Ventilated, Detached or Internal)
✅ Pros:
- Sheltered from weather
- Accessible for maintenance
- Often pre-wired or has enough space
⚠️ Considerations:
- Must meet spacing and ventilation rules
- Battery should not block vehicle access
2. Exterior Wall (South or East Facing)
✅ Pros:
- Easy heat dissipation
- Minimal indoor impact
- Good airflow and safety clearance
⚠️ Considerations:
- Needs shading to avoid sun exposure
- Must not be within 600mm of windows or doors
3. Dedicated Battery Enclosure or Cabinet
✅ Pros:
- Custom-designed for weather and fire protection
- Ideal for compact yards or high-performance systems
⚠️ Considerations:
- Cost of enclosure
- Still needs space, airflow, and inspection access
Places to Avoid
- Direct sunlight: Heat reduces performance and lifespan
- Bathrooms, laundry rooms, or habitable rooms
- Under staircases or in tight indoor corners
- Near flammable materials or ventilation outlets
Key Features of a Good Solar Battery Location
| Feature | Why It Matters |
|---|---|
| Shaded and dry | Prevents overheating, moisture damage |
| Well-ventilated | Avoids gas build-up and improves efficiency |
| Compliant with AS5139 | Required for warranty and insurance |
| Accessible | Enables easy maintenance and inspection |
| Fire-resistant surface | Reduces fire risk and ensures compliance |
Rules and Regulations to Know
- Minimum clearance: Batteries must have safe distances from entry points
- Not in habitable rooms: Bedrooms and lounges are prohibited
- Certified installation: Must be installed by a CEC-accredited professional
- Compliant products: Battery must be on the Clean Energy Council’s approved list
Solar Battery Installation Location
Q: Can I install my battery inside the house?
A: Only in non-habitable areas like garages or utility rooms, following safety clearance rules.
Q: Does battery placement affect rebates?
A: Yes — it must be installed by an accredited installer and follow AS/NZS 5139 for eligibility.
Q: Can a solar battery be placed in the sun?
A: No — heat shortens battery life. Shaded, ventilated areas are ideal.
Q: Can I place my battery on the roof?
A: Generally not recommended unless specifically designed for it. Most rebates and safety standards prefer ground or wall-mounted systems.
