SOLAR BATTERY STORAGE SYSTEM

100KWh

Large businesses, warehouses, and factories

$68,999^*

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100kWh Solar Battery

A 100kWh solar battery is designed for large-scale energy needs across commercial, on-grid, hybrid, and off-grid systems in Australia.

In Australia, more businesses and organisations are adopting solar energy, and adding battery storage is becoming increasingly practical. A 100kWh system can provide reliable power during the night or outages, offering consistent performance for commercial operations. It delivers a balanced capacity that suits the needs of many medium to large-scale users.

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Big Family Home

What is a 100kWh Solar Battery?

When we say “100kWh solar battery,” that refers to its total storage capacity: roughly 100 kilowatt‑hours of energy ready to use.

These batteries are typically lithium-ion commercial-grade units, often VPP‑ready (Virtual Power Plant capable), so you can integrate into larger energy networks if you choose. Some models are made by big names in the industry — that kind of capacity is more common in utility or commercial setups.

How Much Power Does 100kWh Actually Provide?

Let’s break it down:

Running a 20 kW small factory pump for about 5 hours
Keeping lighting and computers in an office going overnight for maybe 15–20 hours, depending on load
Back‑up power in a warehouse or farm for a full night or even longer, depending on efficiency

In practice, usable capacity might be slightly less (say 90 kWh), depending on depth‑of‑discharge specs. But for rough planning, assume 100 usable kWh for simple calculations.

What is a Kilowatt-Hour?

Kilowatt-hour (kWh) is a unit used to measure energy over time. If a device uses 1 kW of power continuously for one hour, it consumes 1 kWh of energy. A 100kWh solar battery is a high-capacity energy storage system designed for large-scale commercial, on-grid, hybrid, and off-grid applications across

How Many Kilowatt‑Hours Do You Need?

You’ll need to look at your typical energy use. Many Australian businesses find that small business operations, workshops, or farms consume around 50–150 kWh per day. If you want to cover most of your night or cloudy days, a 100kWh battery gives that buffer. You might go smaller if solar panel capacity is limited, or larger if you want multi‑day autonomy. Usually it’s a mix of solar generation plus loads—so base it on what you use after solar panels have done their work during daytime.

Benefits of Installing a 100kWh Solar Battery

Key Points

Capacity & Use

Ideal for large properties and commercial businesses, helps reduce peak demand charges by shifting day power to night.

System Components

Stacked lithium battery modules (e.g., 50kWh + 50kWh) paired with high-capacity inverters (over 50kW capacity).

Performance & Weight

A 100kWh unit weighs over 1,400kg, requiring specific installation methods.

Backup Capability

Provides 1–3 days of backup in hybrid or off-grid systems, depending on energy usage.

Any Downsides to Be Aware Of?

High upfront cost
You need proper planning—oversizing or undersizing can reduce ROI
Battery lifespan and cycle limits matter—you might need servicing or replacement after years
Installation space and compliance (Electrical safety certificates, installer accreditation) add complexity

But if you plan well, those cons soften pretty fast.

100KWh Solar Battery Prices in Australia

Prices typically start from around A$68,999 for a 100kWh battery system, depending on brand and configuration, and installation usually adds A$1,000–3,000, depending on your site setup. If you’re also installing a solar system (like a 100kW array), that could cost an extra A$80,000–120,000. Altogether, a full package of battery, solar panels, and install might land somewhere between A$150,000–190,000, based on what your system needs.

Get a free quote from Aussie Solar Tech to find the right 100kWh battery system for your business.

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100KWh Battery Lifespan & Warranty Info

Most commercial lithium-ion battery systems offer:

10‑year warranty on capacity (e.g. maintain 70–80% capacity after that)
Cycle life around 3,000–5,000 full cycles—so daily cycling could still give 8–15 years lifespan
Maintenance requirements are low, but monitoring and occasional calibration is smart

Is 100kW Solar Battery Enough for Commercial Use?

Wondering if 100kWh is enough for your business? For many medium to large commercial setups, it’s just right. It can comfortably power workshops, small factories, offices, and farms during evenings and blackouts.

While it may not fully replace grid power for high-demand businesses, it can significantly reduce dependence on the grid. For many Australian businesses, a 100kWh battery offers a practical balance between cost and capacity, making it a strong option for commercial use.

Frequently Asked Questions

How long will a 100 kWh battery last?

A 100 kWh battery can typically provide backup for 10–20 hours, depending on the load.

How much does a 100 kWh solar battery cost?

Prices for a 100 kWh solar battery start from around A$68,999 in Australia.

How many solar panels are needed to charge a 100 kWh battery?

You will typically need 55–60 solar panels (400W each) to charge a 100 kWh battery in one sunny day.

What type of inverter is needed for a 100 kWh battery?

You’ll need a compatible hybrid or commercial-grade inverter designed for high-capacity storage.

Is a 100 kWh battery good for businesses?

Yes, it provides strong backup for shops, offices, and small commercial sites.

Can a 100kWh battery be used in on-grid systems?

Yes, a 100kWh solar battery is commonly used in on-grid and hybrid systems to store excess solar energy and reduce electricity costs.

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Sungrow Battery

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SolarEdge Battery

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Growatt Battery

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GoodWe Battery

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