With rising power prices, more batteries on the market, and plenty of Perth sunshine, it’s no surprise homeowners are asking:
“Can I go completely off-grid with solar and batteries?”
The short answer is: yes, it’s possible.
But for most Perth homes, it’s not always the smartest or most cost-effective option.
Let’s break it down properly.
What does “off-grid” actually mean?
Going off-grid means your home is completely disconnected from the electricity network. Instead of relying on the grid, your power comes from:
- Solar panels
- One or more solar batteries
- Often a backup generator (for worst-case scenarios)
- You generate, store, and manage all of your own electricity.
Is it technically possible in Perth?
Yes, it is possible to disconnect from the grid and go completely “off-grid”.
However, we usually don’t recommend it. Despite that fact that we boast:
- High sunshine hours year-round
- Mild winters compared to other states
- Plenty of roof space on most homes
- With a large solar system and multiple batteries, an off-grid setup can work
– we typically recommend is a solar and battery system that can ensure you very rarely (or never) need to pull electricity from the grid and select a plan that gives you the lowest daily connection charge with Synergy.
So, should you go off-grid in Perth?
For most households:
❌ Fully off-grid: possible, but expensive
✅ Solar + battery + grid connection: smart, flexible, and cost-effective
At Solar You, our approach is simple — we won’t recommend off-grid unless it genuinely makes sense for your lifestyle, budget, and location.
Is staying connected to the grid a bad thing?
Not at all.
For most Perth homes, the best solution isn’t off-grid; it’s grid-smart.
A grid-connected solar system with a battery allows you to:
- Use your own solar power day and night
- Store energy for evenings and outages
- Export excess power when it suits you
- Use the grid as a low-cost backup instead of expensive extra batteries
The reality of things
During the Winter months, even customers with fairly large panel setups struggle to fill their batteries throughout the day and still need to draw power from the grid.
Most customers simply wouldn’t have the roof space to fit enough panels to overcome this lack of sunlight to keep the household running and fill the battery for evening use.
If your frustration is the connection charges – by being smart with your energy consumption during Summer, you can feed in enough power to the grid to almost zero your daily service charges.
Then on the few months of rainy and overcast days where there isn’t much solar to absorb, you’re unlikely to feed much back to the grid and will be paying both the connection charge and whatever you draw from the grid (with the panels offering some relief with the power it can generate from the limited sunlight).
Having solar panels, a battery and being connected to the grid gives you the best of both worlds and is the most economical approach long-term.
If your overall goal is to save money, going off-grid in most residential environments will likley never deliver the savings to cover the setup costs.
