SOLAR BATTERY STORAGE SYSTEM
50KWh
Large Homes & Small Business
$12,999*
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50kWh Solar Battery
A 50kWh solar battery is a high-capacity energy storage solution designed for large homes, farms, workshops, small businesses and commercial properties with higher energy demand. It stores excess solar energy generated during the day so you can use that power at night, during peak electricity rates or during grid outages.
For Australian properties with larger daily electricity usage, a 50kWh battery can help reduce grid reliance, improve backup power support and make better use of your solar system. The right setup will depend on your energy consumption, solar panel capacity, inverter size, backup requirements and installation design.
DISCOVER THE BEST SOLAR BATTERY FOR YOUR SOLAR SYSTEM
40KWh
Solar Battery
High-usage small & medium homes
$
9,799
*
Medium Homes
- Complete Energy Solution
- 24/7 Power Backup
- Seamless Integration
- High-Quality Energy Storage
50KWh
Solar Battery
Large homes & business
$
12,999
*
Large Homes
- Complete Energy Solution
- 24/7 Power Backup
- Seamless Integration
- High-Quality Energy Storage
60KWh
Solar Battery
Large homes & businesses
$
17,199
*
Large Homes
- Complete Energy Solution
- 24/7 Power Backup
- Seamless Integration
- High-Quality Energy Storage
What Can a 50kWh Solar Battery Power?
Here’s a simple way to picture it:
- Essential loads such as lights, fridges, fans and basic appliances
- Office equipment such as computers, printers, Wi-Fi, POS systems and security systems
- Refrigeration, lighting and selected small business equipment
- Selected home and business loads during peak-rate periods or power outages
- Backup support for large homes, farms, workshops, offices, clinics and retail spaces
With the right solar system and inverter setup, a 50kWh battery can support both grid-connected and off-grid applications. For grid-connected homes or businesses, it can help store solar energy for peak-rate periods and backup use. For off-grid sites, it can provide stronger energy support when the system is properly designed.
Average 50kWh Battery Backup Time by Household or Business Load
The backup time of a 50kWh solar battery depends on how much electricity your home, farm or business uses during the backup period. Lower energy usage can make the battery last longer, while heavy loads such as air conditioning, heating, EV charging or business equipment will drain it faster.
| Average Load | Estimated Backup Time |
|---|---|
| 1kW essential load | Up to 50 hours |
| 2kW household load | Up to 25 hours |
| 5kW medium load | Up to 10 hours |
| 10kW high load | Up to 5 hours |
| 15kW heavy load | Up to 3.3 hours |
These backup times are estimates only. Actual performance may vary depending on usable battery capacity, inverter output, appliance usage, battery condition and whether solar panels are generating power during the day.
How Much Battery Storage Do You Need?
This is where it gets personal. Every business is different. A small café running a few fridges, lights, and coffee machines might use around 20–30kWh per day, whereas a commercial warehouse with machinery or refrigeration units might chew through 60–100kWh daily, easy.
So if your daily usage hovers around 40–60kWh, a 50kWh battery could be the sweet spot — either covering most of your needs or acting as a solid backup during peak demand or outages.
Is 50KWh Enough for Commercial Use?
A 50kWh battery can be suitable for many small to medium commercial properties, depending on daily electricity use, peak demand, backup requirements and the size of the solar system.
It may suit applications such as:
- Retail shops
- Clinics and small offices
- Small farms or wineries
- Warehouses with moderate energy use
Businesses with higher or continuous loads, such as workshops, refrigeration facilities or larger commercial sites, may require 80–100kWh or more. The right battery size should be based on the property’s actual energy consumption, peak loads, inverter capacity and required backup duration
50KWh Solar Battery Price in Australia
As of 2026, prices for a 50kWh solar battery in Australia start from around A$12,999, depending on the brand, battery chemistry (like LFP or NMC), and whether it’s a modular or all-in-one unit.
Prices can vary based on:
Depth of Discharge (DoD)
Scalability (can you add more units later?)
Smart features (remote monitoring, VPP-ready)
If you’re considering a 50kWh system for your home & business, getting a tailored quote is the best next step.
Return on Investment (ROI) & Payback Period
Note: This is an illustrative estimate based on a battery price of A$12,999, assuming 20 kWh of solar energy is stored daily, 90% battery efficiency, an electricity rate of A$0.30/kWh and a feed-in tariff of A$0.05/kWh. Actual savings and payback may vary.
Federal Battery Rebate for 50kWh Solar Batteries
A 50kWh solar battery may be eligible for the Australian Government’s Cheaper Home Batteries Program if it meets the approved battery, solar connection and installer requirements.
From 1 May 2026, STC support is calculated in tiers:
| Usable Battery Capacity | STC Support |
|---|---|
| 0–14kWh | 100% STC factor |
| Above 14–28kWh | 60% STC factor |
| Above 28–50kWh | 15% STC factor |
For a 50kWh battery, STC support can apply up to the first 50kWh of usable capacity. The final rebate amount depends on usable capacity, battery model, installation date, STC value and eligibility conditions.
Lifespan and Warranty Insights
Most commercial-grade solar batteries come with a warranty of 10–15 years, with 4,000–6,000 cycles depending on battery chemistry and usage. That’s roughly one full charge and discharge per day for over 15 years.
Look out for:
Cycle life guarantee
End-of-warranty capacity (e.g., still holds 70–80% at year 10)
Manufacturer reputation
Support & servicing availability in Australia
Lithium iron phosphate (LiFePO₄) batteries are a popular choice for longer lifespan and thermal safety.
Is It Worth the Investment for Your Home or Business?
If your energy use is consistent, daytime-heavy, or you sometimes face grid instability, investing in a 50kWh solar battery can be a smart move for both homes and businesses.
Over time, you may notice real savings and practical benefits through:
- Feed-in tariffs or Virtual Power Plant (VPP) programs — depending on your retailer, location and system setup, you may earn credits or improve returns by exporting excess solar energy or joining an eligible VPP.
- Federal and state battery incentives — eligible programs may help reduce upfront costs, depending on location, battery size, system setup and installer requirements.
- Avoided downtime during outages — keep selected home or business loads running when the grid is down, if your system includes a compatible backup setup.
- Reduced peak energy rates — store solar power during the day and use it when electricity prices are higher.
It’s not just about saving money. A 50kWh battery can also help improve energy control, backup support and long-term energy flexibility.
Frequently Asked Questions
Can I go completely off-grid with a 50kWh battery?
Yes, if your usage matches and you have enough solar input. But check your winter generation levels.
How much does a 50kWh solar battery cost?
The 50kWh solar battery price starts from around $12,999 AUD. The final cost ay vary depending on the battery brand, system design, inverter type, installation requirements, and available rebates.
How long will a 50 kWh battery last?
The runtime of a 50 kWh battery depends on how much energy you use. For example, if your home uses about 5 kW of power at a time, a 50 kWh battery could theoretically last around 10 hours (50 kWh ÷ 5 kW = 10 hours). Actual duration varies based on appliances running, battery discharge limits, and inverter efficiency.
Can I stack batteries to go beyond 50kWh?
Yes. Most commercial battery systems are modular, allowing multiple units to be stacked to reach 80kWh, 100kWh, or more, depending on inverter and system design
How fast is 50kW charging?
A 50kWh solar battery typically charges in 4 to 10+ hours depending on the solar array size and sunlight conditions
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.
- Growatt Battery
A small, affordable option that works well.
- GoodWe Battery
A solar storage battery that is reliable, long-lasting, and very efficient.
- LG Chem Battery
Reliable and powerful. Perfect for homes or small businesses needing long-lasting backup.
