Home Solar Batteries
Stop Selling Your Solar Back for Cents.
A home battery keeps every kilowatt you generate - powering your evenings, protecting you from blackouts, and cutting your bills for years to come.
Get even more from your solar
Power bills keep climbing and the grid keeps surprising you - outages at the worst moments, peak-rate charges that wipe out your solar savings. You already know solar is the right move. But without a battery, you're still at the mercy of the grid for most of your day.
Home battery storage changes that equation entirely. At Off The Grid, we design and install battery systems that store your surplus solar and put it to work when you actually need it - in the evenings, during price peaks, and when the lights go out. One system, properly designed, gives you genuine energy independence.
The truth about solar without a battery
Feed-in tariffs have fallen sharply. Sending excess solar back to the grid now earns just a few cents per kilowatt-hour - while you buy that same power back at peak rates of 30 cents or more after dark.
You're funding everyone else's electricity while paying full price for your own. And a solar system alone won't keep your fridge running when the grid goes down - panels switch off the moment power fails.
The right battery changes both of those problems at once. Your home runs on stored solar through the evening, your essentials stay on during outages, and your bill shrinks significantly from day one.
Find the right battery for your life
There's no single battery that suits every home. Here's how we match the right solution to your roof, your household and your goals.
Solution 1: Whole-Home Evening Power
Most households use the bulk of their power between 5pm and 10pm - exactly when solar panels stop generating. A well-sized battery bridges that gap completely:
- Store 10-30+ kWh of surplus daytime solar to power your evenings without touching the grid
- Automatically discharge during the most expensive peak-rate periods to cut your bills
- Systems like the Tesla Powerwall 3 (13.5 kWh usable, up to 11 kW continuous output) can run most Australian homes through an entire evening peak - lights, air-con, appliances and all
- Smart app control lets you see exactly what you're generating, storing and spending in real time
- Expandable - add another unit later as your household grows or you add an EV
Evening self-sufficiency is where the bill savings happen fastest.
Solution 2: Blackout Protection and Whole-Home Backup
When the grid goes down, most homes go dark. A battery-backed system keeps your essentials running automatically - no generator, no manual switching, no disruption:
- Seamless switchover in under a second when grid power fails, so most households barely notice
Protect your fridge, freezer, internet, lights and security system through extended outages - Tesla Powerwall 3 features Storm Watch - it auto-charges to full when severe weather is forecast, so your home is prepared before the storm arrives
- SigenStor systems keep essential circuits live through blackouts with integrated backup, keeping your family comfortable and connected
- 24/7 remote monitoring by our team means issues are flagged and resolved before they become problems
Your home stays running. Your family stays comfortable. The grid is just the backup.
Solution 3: Modular, Scalable Storage for Growing Homes
Not every home needs the same solution on day one. If you want to start smart and grow over time, modular battery systems let you invest in stages without replacing what you've already built:
- Anker SOLIX X1 starts at 5 kWh and stacks up to 30 kWh per system - add modules as your needs grow without energy loss between mixed-age batteries
- SigenStor integrates inverter, battery, energy management and EV charging into one clean unit, so future upgrades don't mean more boxes on the wall
- Dyness Powerbox provides a cost-effective, stackable LiFePO4 option that works with most hybrid inverters - practical reliability without the premium price tag
- All systems are sized to your real household loads, not a one-size-fits-all package
Start where your budget is today. Grow to where your life is heading.
Solution 4: Solar Self-Consumption Optimisation
Even a great solar system loses value if it's exporting cheap and buying back expensive. Smart battery management captures that margin and keeps it in your home:
- Time-of-Use and Self-Consumption modes automatically charge your battery when solar is abundant and discharge when tariffs are highest
- SigenStor's AI-driven energy scheduling learns your usage patterns and optimises charge cycles to stretch every stored kilowatt-hour further
- Anker SOLIX X1 supports six smart operating modes including peak shaving and grid export arbitrage, maximising the return on your solar investment
- Feed-in tariff changes won't affect you as much - you're using your own energy instead of selling it at a loss
Every kilowatt you generate stays where it belongs - in your home, not the grid.
Only the best brands.
A solar company you can count on
We design for your home, not a brochure
Every battery system we install starts with a detailed assessment of your household's actual energy use, your existing solar setup and your goals. We don't recommend the most expensive option - we recommend the right one. That focus on fit over features means better performance, better savings and fewer surprises down the track.
Premium products, properly installed
We work with leading battery brands including Tesla, Sigenergy, Anker SOLIX and Dyness - systems that carry 10-year warranties, operate safely across Australia's extreme temperatures, and are engineered for daily cycling over decades. Every installation is carried out by accredited technicians to Australian Standards, with compliance documentation provided.
One partner, from first conversation to long-term support
We handle design, approvals, installation and ongoing monitoring. You don't manage multiple contractors or deal with separate warranty parties. If something needs attention, you call us - and we sort it. That's what over 20 years of combined experience looks like in practice.
24/7 monitoring that works for you
Our remote monitoring system tracks your battery's health, charge cycles and output around the clock. If performance drops, we're alerted before you are. You get a live dashboard to check your system any time, and we handle proactive maintenance so your investment keeps delivering.
How it works
1.
Free Consultation
We review your current solar setup, energy bills and household usage to understand exactly how a battery will perform for you - including an honest estimate of bill savings and payback period.
2.
System Design & Quote
We match the right battery size, brand and configuration to your home. If your existing solar or switchboard needs upgrading to support a battery, we tell you upfront - no surprises.
3.
Accredited Installation
Our CEC-accredited technicians install your system to Australian Standards. We handle grid connection approvals and provide compliance certification on completion.
4.
Monitoring & Support
Your system goes live with 24/7 remote monitoring activated. We run regular health checks, push software updates and respond quickly if anything needs attention.
Ready to keep the power you generate?
Find out how a home battery system designed for your household can cut your bills and protect you from outages.
No obligation. Honest advice. Local experts.
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Your Questions, Answered
How long does a home battery last?
Most quality home batteries - including Tesla Powerwall, SigenStor and Anker SOLIX X1 - carry 10-year warranties and are designed for daily cycling across that entire period. With LiFePO4 chemistry, many systems maintain strong performance well beyond their warranty term.
Can I add a battery to my existing solar system?
In most cases, yes. We assess your current inverter, panels and switchboard to determine the best integration path. Some older systems may require a switchboard upgrade - we identify this in the initial consultation so there are no surprises.
How much can I save?
Savings depend on your household's usage patterns, your current tariff and your solar system size. We model this honestly during your free assessment so you get a realistic picture, not a best-case number.
What happens during a blackout?
Your battery activates automatically, typically within a fraction of a second. Essential appliances keep running with no manual action required.