By Dave Miller · off-grid sparky · 22 years wiring solar, batteries and sheds in central QLD

“After losing my first ground-mount array to a single termite swarm in 2018, I learned that burying cables just 400mm deep is a costly gamble in central Queensland.”

Forget roof mounts. For off-grid, ground mounts are the only smart option. No bullshit.

Pole Mounts: Your Off-Grid Workhorse

Most off-grid Aussies use pole mounts. Simple. Cheap. Works in the bush.

How it works

One or more poles driven into the ground. Panels bolted to a bracket. Done.

Pros

• Cost: $1,000-$3,000 for a 1-2kW setup (basic pole + brackets)
• Easy to install: You can do it yourself with a shovel and level
• Handles Aussie wind: Properly installed, no issues

Cons

• Fixed angle: Can't track sun (lose 10-15% energy vs tracking)
• Needs space: Minimum 3m x 3m per pole

Practical tips (no fluff)

• Wind proof: Coastal? Use 150mm+ diameter poles. Inland? 100mm minimum. Don't skimp.
• Ground prep: Dig 1m deep holes. Concrete the base. No exceptions.
• Angle: Set at your latitude (e.g., 30° for Sydney). Adjust seasonally if you care about 5% more power.
• Suppliers:
  Renewable Energy Solutions (RES): Pole kits from $850 (includes brackets/hardware). Good for small setups.
  Powerhouse: Full pole mounts from $1,200. Includes everything. No extra trips to Bunnings.

Tracking Systems: Save Your Money

They follow the sun. Sounds cool. In Australia? Total waste of cash for off-grid.

How it works

Motorised arms that turn panels all day. Needs a battery to run the motor.

Pros

• Up to 30% more energy than fixed mounts

Cons

• Cost: $5,000-$15,000. That's a full solar system for a 10-20% gain.
• Breaks down: Motors fail. Gears rust. In remote areas? You're screwed.
• Drains power: Uses 5-10% of your daily output to run itself.

Bottom Line

Pole mounts are the only sensible ground mount for off-grid Australia. They're cheap, reliable, and get the job done. Don't overcomplicate it. If you're spending $5k+ on tracking, you're doing it wrong.

When to Call a Professional

While many off-grid projects are achievable as DIY, certain situations require licensed professionals:

• Electrical work beyond basic 12V DC additions — requires a licensed electrician
• Structural modifications to buildings or load-bearing elements
• Gas line installation or modification
• Solar array installations above safe voltage thresholds
• Any work that affects the structural integrity of your property

Always check local regulations and obtain necessary permits before commencing work.