Affordable 20kW Solar Battery Prices in Sydney — Power Your Property with Smart Energy Solutions | Ads Sola

As Sydney continues to embrace renewable energy, more homeowners and businesses are investing in solar solutions to reduce electricity bills and lower their carbon footprint. One of the most powerful and efficient systems on the market is the 20kW solar system, especially when combined with a solar battery. But how much does a 20kW solar battery cost in Sydney? Is it really affordable? And how do you ensure you’re getting the best value?

At Ads Solar, we’re committed to making clean energy accessible and affordable for every Australian. In this guide, we’ll break down everything you need to know about 20kW solar battery prices in Sydney, their benefits, installation considerations, and how to find the best deals.

Affordable 20kW Solar Battery Prices in Sydney

What is a 20kW Solar System with Battery Storage?

A 20kW solar system is a high-capacity solar power setup, typically made up of 50–54 solar panels (each around 370–400W). When paired with a solar battery, the system can store excess energy generated during the day for use at night or during power outages.

Key features of a 20kW solar system with battery:

Ideal for large homes, farms, commercial properties, or energy-intensive businesses.
Can generate around 70–90 kWh of electricity per day depending on sunlight and panel quality.
Compatible with high-capacity lithium-ion batteries such as Tesla Powerwall, LG Chem, Sungrow, and others.
Can provide energy independence and long-term electricity bill savings.

Why Choose a Solar Battery for Your 20kW System?

Adding a battery to your solar system turns it from grid-dependent to energy-resilient. Here’s why more Sydneysiders are investing in solar battery storage solutions:

1. Maximise Solar Usage

Without a battery, unused solar power is exported to the grid, often at low feed-in tariffs. With a battery, you can store that excess energy and use it when needed.

2. Reduce Electricity Bills

Store energy during the day and use it during peak evening hours when electricity rates are higher. This greatly reduces reliance on the grid.

3. Protection Against Power Outages

Solar batteries provide backup power during blackouts — critical for homes with medical equipment or businesses that rely on continuous power.

4. Increased Energy Independence

Own your power and reduce your vulnerability to rising electricity costs.

5. Support a Sustainable Future

Reduce your carbon footprint and contribute to a cleaner planet by using 100% renewable energy.

How Much Does a 20kW Solar Battery Cost in Sydney?

Now for the big question: what is the price of a 20kW solar battery system in Sydney?

Average Cost Range

System Type: Estimated Cost (After STC Rebates)

20kW Solar System (Panels Only): $16,000 — $20,000

20kW Solar + 10kWh Battery: $24,000 — $30,000

20kW Solar + 20kWh Battery: $28,000 — $36,000

20kW Solar + 30kWh+ Battery: $35,000 — $45,000

Note: Prices may vary based on your property, energy usage, battery brand, installation complexity, and whether you’re installing for residential or commercial use.

At Ads Solar, we offer affordable 20kW solar battery packages in Sydney, designed to meet your budget and performance expectations. We also provide customised solar quotes based on your needs.

What Affects 20kW Solar Battery Prices in Sydney?

Several factors can influence the final cost of your system. Understanding these can help you make a smart, informed investment.

1. Battery Size (kWh)

Battery capacity determines how much energy you can store. A 10kWh battery is cheaper than a 20kWh or 30kWh option, but larger batteries offer more backup and longer autonomy.

2. Battery Brand and Technology

Top brands like Tesla Powerwall 2, LG Chem RESU, and Sungrow SBR vary in pricing. Lithium-ion batteries are the most efficient and widely used.

3. Installation Costs

Labour, cabling, electrical upgrades, and site-specific work can influence costs. A complex roof or switchboard upgrade can increase the final bill.

4. Inverter Compatibility

Your inverter must support both solar panels and battery integration. Hybrid inverters cost more but simplify battery connections.

5. Government Incentives and Rebates

You may be eligible for:

STC (Small-scale Technology Certificates) for your solar panels.
NSW Government Battery Rebates or Interest-Free Loans under the Empowering Homes program.

What’s Included in a 20kW Solar Battery Package?

When you choose Ads Solar, your 20kW solar battery system package typically includes:

High-efficiency Tier-1 Solar Panels (50–54 panels)
Hybrid or Battery-Compatible Inverter
Solar Battery (10kWh — 30kWh+)
Full system design and installation
Wi-Fi monitoring system
Electrical compliance and grid connection
Warranty on panels, inverter, and battery
After-sales service and technical support

We provide end-to-end solar services from consultation to installation and beyond — giving you peace of mind and guaranteed performance.

Affordable 20kW Solar Battery Installation Sydney — Why Choose Ads Solar?

With hundreds of installations completed across New South Wales, Ads Solar is a trusted provider of solar battery systems in Sydney. Here’s what sets us apart:

Tailored Solar Solutions

Every property is different. We analyse your energy usage and property layout to design a solar battery system that suits your exact needs.

Competitive Pricing

We offer some of the best prices for 20kW solar systems with batteries in Sydney, without compromising on quality.

Certified Installers

Our Clean Energy Council (CEC) accredited installers ensure safe, compliant, and professional installations.

Premium Brands

We only use high-quality solar panels, inverters, and batteries from globally recognised manufacturers.

Flexible Finance Options

Can’t pay upfront? No worries. We offer interest-free payment plans, solar leasing, and green loans to make your solar investment easier.

Ongoing Support

Enjoy lifetime support, performance monitoring, and maintenance services post-installation.

Is a 20kW Solar Battery System Right for You?

This system is ideal for:

Large family homes with high energy use
Properties with electric vehicles or pool heaters
Businesses running multiple appliances, computers, or machinery
Warehouses, retail spaces, and hospitality venues
Rural and off-grid properties seeking energy independence

If your monthly power bill is over $800–$1000, a 20kW solar system with battery can deliver fast ROI and long-term savings.

How Much Can You Save?

A 20kW solar system in Sydney can generate around 25,000–32,000 kWh per year. With battery storage, you could save $8,000–$12,000 annually, depending on usage and tariff rates.

Over 10 years, that’s a potential saving of $80,000–$120,000 — not to mention the rising cost of electricity and potential grid failures you’ll be shielded from.

FAQs — Affordable 20kW Solar Battery Prices in Sydney

Q: What’s the lifespan of a solar battery?A: Most lithium-ion batteries last between 10–15 years with proper maintenance. Many come with 10-year warranties.

Q: Can I add a battery later to my 20kW solar system?A: Yes, but it’s often cheaper and more efficient to install both together. Hybrid inverters support future upgrades.

Q: Are there government rebates for solar batteries in Sydney?A: NSW offers various rebates and loans. Ads Solar can help you check eligibility and apply.

Q: How long does installation take?A: Installation typically takes 2–4 days, depending on the complexity and size of the system.

Q: Is the investment worth it?A: Absolutely. With skyrocketing energy prices and declining feed-in tariffs, self-consumption and energy independence are the smartest long-term strategy.

Ready to Go Solar? Contact Ads Solar Today!

Whether you’re looking for affordable 20kW solar battery prices in Sydney, or need expert advice on the right solution for your home or business, Ads Solar is here to help.

Our team of energy experts will guide you every step of the way — from free consultation and custom quotes to professional installation and support.