SOLAR BATTERY STORAGE SYSTEM

10KWh

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10kWh Solar Battery

As more Aussie households lean into solar, one question keeps popping up — how much battery storage do you really need to make it all work? While there’s no one-size-fits-all answer, a 10kWh solar battery has become a pretty solid choice for many homes across the country. It strikes a balance — not too small to feel limited, and not too big to blow the budget.

Whether you’re trying to cut down on your power bills, move toward energy independence, or simply keep the lights on during a blackout — understanding what a 10kWh battery actually offers is a smart place to start. Let’s break it all down.

DISCOVER THE BEST SOLAR BATTERY FOR YOUR SOLAR SYSTEM

10KWh
Solar Battery

Medium homes and small business

$

3,999

*

Small Home

13KWh
Solar Battery

Larger homes and small businesses

$

4,199

*

Medium Home

20KWh
Solar Battery

Larger homes and medium business

$

6,599

*

Big Family Home

What is a 10kWh Solar Battery?

A 10kWh solar battery is a rechargeable energy storage unit that can hold up to 10 kilowatt-hours of electricity — usually produced from your solar panels. In practical terms, that means the battery can store 10,000 watts of power for one hour, or 1,000 watts for 10 hours. It stores the excess energy your solar system generates during the day, then feeds it back into your home when the sun goes down or during peak usage times.

You might not think much about what’s going on behind the scenes, but that stored power can run appliances, lights, or even keep your air conditioning going — all without pulling energy from the grid. And for folks dealing with high electricity prices in Australia (which let’s be honest, is most of us), this can mean real savings.

How Much Energy Does a 10kWh Battery Provide?

A 10kWh solar battery can run quite a bit — but exactly how much depends on what you’re powering. Here’s a simple idea:

LED lights (10–15): 5–10 hours
Fridge: 10–20 hours
Washing machine (per cycle): ~1.2kWh
TV: 100–200 watts/hour
Air conditioner: 2–4kWh/hour

So, if you’re running essentials during a power outage — fridge, lights, a fan, maybe your internet and phone charging — a 10kWh battery could easily last through the night. For full-house usage, especially with heating or cooling, it might not last 24 hours, but it’ll definitely make a noticeable difference.

What is Kilowatt-Hour (KWh)?

If you’re new to the world of solar and batteries, “kWh” might sound a bit technical. But it’s actually pretty straightforward. A kilowatt-hour (kWh) is just a measure of energy. It’s how much power you use over time. So if you run a 1,000-watt appliance (like a microwave) for one hour, you’ve used 1kWh.

That’s why when you see a “10kWh” battery, it means it can deliver 1,000 watts of power for 10 hours — or something more powerful for a shorter time. It’s not about how fast the battery delivers energy, but how much energy it can store and release over time.

Advantages of a 10KWh Solar Battery

Energy savings – Lower electricity bills by using stored solar at night
Backup power – Stay powered during grid outages
Energy independence – Rely less on your energy retailer
Supports sustainability – Makes better use of your solar investment
Scalable – Can be added to or expanded in some systems

Plus, with solar feed-in tariffs getting lower in most Australian states, storing excess energy makes more financial sense than ever.

Disadvantages to Consider

Upfront cost – Can be expensive initially
Limited storage – Not enough for large homes with heavy usage
Battery degradation – All batteries lose capacity over time
Not always worth it – Payback period can be longer if you’re a low energy user

You really need to weigh cost vs usage. If you’re home during the day and already use most of your solar directly, a battery may not give a fast return.

Is 10KWh Enough for the Average Australian Home?

For many homes, yes — a 10kWh battery is more than enough to make solar truly practical. The average Aussie household uses around 15–25kWh per day, depending on location and lifestyle. If you’re running solar panels during the day and storing excess in your battery, that 10kWh can cover your evening and overnight needs quite comfortably.

A lot of Aussies find that with a 6.6kW solar system and a 10kWh battery, they can reduce their reliance on the grid by over 70%. Add a bit of smart usage — like running dishwashers and washing machines during the day — and you’re in pretty good shape.

Best Use Cases for a 10KWh Battery

A 10kWh battery is a great fit for:

3–4 person households with moderate electricity usage
Solar system owners who want to reduce grid reliance
Homes in blackout-prone areas — gives backup when the grid goes down
People working from home — keeping devices and internet stable
Night-time energy users — using stored solar after sunset

It’s also popular for semi-off-grid setups and rural properties looking for backup.

Installation & Setup

Installation must be done by a licensed solar installer (Clean Energy Council-accredited). The whole job usually takes a few hours to a day, depending on system complexity. Good installers will also assess your usage, location, and budget—helping you decide whether a hybrid or AC-coupled system fits best. Ask about smart monitoring too — helps you track savings and usage easily.

How Long Does It Last? (Lifespan & Warranty)

Most 10kWh solar batteries last between 10 to 15 years, depending on usage and environment. They come with warranties that typically guarantee 70–80% capacity after 10 years or a certain number of cycles (like 6,000–10,000).

Brands like Tesla Powerwall, Sungrow, BYD, and SolarEdge offer solid options with good support in Australia.

Government Incentives & Costing

Installing a 10kWh solar battery in Australia is a smart move for energy independence, but it comes with a notable upfront cost. Thankfully, several state-based rebates and financial incentives can help bring that cost down, especially if you’re eligible under local energy programs.

Average Cost
For a 10kWh battery System, pricing starts from around A$3,999, and installation can add another AU$1,000 to AU$3,000, depending on your home’s layout, the inverter brand, and any extra monitoring systems.

Available Rebates

Victoria: You could be eligible for up to $2,950 rebate through the Solar Homes Program
South Australia: Some homes may still benefit under the Home Battery Scheme, if they meet the remaining eligibility
New South Wales: A few local councils offer incentives for home battery adoption
National: While standalone batteries don’t earn STCs, hybrid systems (solar + battery) might still qualify for indirect support

To unlock these benefits, make sure your installation is carried out by a CEC-accredited installer and that your property meets any specific criteria, such as income thresholds or location zoning.

Frequently Asked Questions

Can a 10kWh battery power a whole house?
Only if your energy needs are light or highly efficient. For larger households, it may not last a full day but will handle night-time needs comfortably.

Can I add a second battery later?
Yes — many systems are modular. Just check your inverter supports expansion.

Do I need solar panels to use a battery?
Not necessarily, but it’s way more cost-effective when paired with solar.

Is there any government rebate for solar batteries in Australia?
Yes — some states like Victoria, South Australia, and NSW offer battery rebates or loans. Eligibility and amounts vary.

WE INSTALL CEC APPROVED POPULAR SOLAR BATTERIES IN AUSTRALIA

Tesla Powerwall

Great for storing solar energy at home because it is very efficient and lasts a long time.

Sungrow Battery

Works well and is affordable. It can be used in homes and businesses.

Sigenergy Battery

A dependable storage option that focuses on being eco-friendly and simple to use.

SolarEdge Battery

Works best with SolarEdge inverters and gives you excellent monitoring and control.

Growatt Battery

A small, affordable option that works well for homeowners looking to store solar energy efficiently.

SAJ Battery

A reliable and budget-friendly battery that’s easy to install and ideal for home use.