• ALPHA ESS 20.2kWh
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Alpha ESS 20.2kWh Battery + Smile S5 G3 Hybrid Inverter Bundle (Up to 10kW PV Input)

Alpha ESS 20.2kWh Battery + Smile S5 G3 Hybrid Inverter Bundle (Up to 10kW PV Input)

$7,340.00
$0.00 $7,340.00
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Overview

📦 About This Bundle

The Alpha ESS 20.2 kWh Battery, combined with the Alpha ESS SMILE-S5 G3 5 kW Hybrid Inverter (supporting up to 10 kW PV input), delivers a robust and scalable energy-storage solution built for larger single-phase homes and properties with high evening energy consumption.

This advanced Alpha ESS system allows you to capture more solar energy during the day and use it at night — significantly reducing grid reliance, lowering electricity bills, and ensuring reliable backup power during blackouts. It also helps maximise savings with Australia’s federal and state battery rebates.

Whether you’re upgrading your current solar system or installing a new one, this bundle helps you:

  • Store daytime solar for peak-rate or night-time usage
  • Reduce energy bills by increasing self-consumption
  • Maintain essential household power during outages
  • Unlock valuable government rebates for significant savings

Featuring 20.2 kWh usable storage and a 5 kW hybrid inverter, this configuration provides:

  • Efficient charging from up to 10 kW rooftop PV
  • Smooth single-phase power delivery for residential applications
  • Automatic switching between solar, battery and grid power

This system typically supports major household loads — including refrigeration, lighting, EV charging, air-conditioning and everyday appliances — for 14–24 hours, depending on usage.

With a 10-year product warranty, powerful smart monitoring, and CEC-accredited installation, this Alpha ESS system delivers dependable energy independence and strong long-term returns.

🔑 Key Features

  • 20.2 kWh usable capacity — Large storage for high-demand homes
  • 5 kW single-phase hybrid inverter — Perfect for modern residential energy loads
  • Blackout protection — Ensures essentials stay powered during outages
  • Advanced LFP (Lithium Iron Phosphate) battery chemistry — Safe, stable & long-lasting
  • Modular + expandable — Add capacity as energy needs grow
  • Smart monitoring via Alpha Cloud — Real-time tracking and control
  • All-weather rated — IP65 inverter for flexible outdoor installation
  • Quiet operation — Suitable for home environments
  • 10-year comprehensive warranty — Full coverage for battery & inverter

🏷️ About the Brand – Alpha ESS

Founded in 2012, Alpha ESS is a leading global battery storage manufacturer with systems deployed in 90+ countries.

Why Australians choose Alpha ESS:

  • Strong local presence and Australian support
  • CEC-approved systems meeting Australian standards
  • High safety performance with LFP chemistry
  • Smart monitoring and seamless integration
  • Eligible for federal and state battery rebates

Alpha ESS systems are trusted for reliability, modern design and affordability.

💰 How are prices calculated?

We like to keep things simple and transparent, so you always know what you’re paying for — and what you’re saving.

Total Price = Battery Price – Federal Battery Rebate

All eligible battery systems receive a federal rebate based on usable capacity. The rebate is currently calculated as:

$350 × Usable kWh of the battery

For example, let’s say you’re looking at a battery system with 15 kWh usable capacity. The rebate would be:

$350 × 20.2 = $7,070.00 federal rebate

So if the system’s full retail price is $17,000, the displayed price on our website would be:

$14,410.00 – $7,070.00 = $7,340.00

This is the amount you’d typically pay (incl. GST) for standard installation. 

✅ No paperwork is needed — we apply the rebate upfront and handle the claim process for you.

✅ Our Online Price Includes:

  • The full battery + hybrid inverter bundle
  • Federal rebate already applied
  • Standard installation in metro areas
  • Monitoring app setup and commissioning
  • Certified installation by a CEC-accredited professional
  • GST included

📌 Final Quote May Vary Based On:

  • Your property’s location and accessibility
  • Switchboard condition or upgrade requirements
  • Distance between the switchboard and the battery location
  • Additional installation materials, if needed

We’ll provide a personalised quote before any work begins — no surprises, no pressure. 
View full details
Overview

Overview

📦 About This Bundle

The Alpha ESS 20.2 kWh Battery, combined with the Alpha ESS SMILE-S5 G3 5 kW Hybrid Inverter (supporting up to 10 kW PV input), delivers a robust and scalable energy-storage solution built for larger single-phase homes and properties with high evening energy consumption.

This advanced Alpha ESS system allows you to capture more solar energy during the day and use it at night — significantly reducing grid reliance, lowering electricity bills, and ensuring reliable backup power during blackouts. It also helps maximise savings with Australia’s federal and state battery rebates.

Whether you’re upgrading your current solar system or installing a new one, this bundle helps you:

  • Store daytime solar for peak-rate or night-time usage
  • Reduce energy bills by increasing self-consumption
  • Maintain essential household power during outages
  • Unlock valuable government rebates for significant savings

Featuring 20.2 kWh usable storage and a 5 kW hybrid inverter, this configuration provides:

  • Efficient charging from up to 10 kW rooftop PV
  • Smooth single-phase power delivery for residential applications
  • Automatic switching between solar, battery and grid power

This system typically supports major household loads — including refrigeration, lighting, EV charging, air-conditioning and everyday appliances — for 14–24 hours, depending on usage.

With a 10-year product warranty, powerful smart monitoring, and CEC-accredited installation, this Alpha ESS system delivers dependable energy independence and strong long-term returns.

🔑 Key Features

  • 20.2 kWh usable capacity — Large storage for high-demand homes
  • 5 kW single-phase hybrid inverter — Perfect for modern residential energy loads
  • Blackout protection — Ensures essentials stay powered during outages
  • Advanced LFP (Lithium Iron Phosphate) battery chemistry — Safe, stable & long-lasting
  • Modular + expandable — Add capacity as energy needs grow
  • Smart monitoring via Alpha Cloud — Real-time tracking and control
  • All-weather rated — IP65 inverter for flexible outdoor installation
  • Quiet operation — Suitable for home environments
  • 10-year comprehensive warranty — Full coverage for battery & inverter

🏷️ About the Brand – Alpha ESS

Founded in 2012, Alpha ESS is a leading global battery storage manufacturer with systems deployed in 90+ countries.

Why Australians choose Alpha ESS:

  • Strong local presence and Australian support
  • CEC-approved systems meeting Australian standards
  • High safety performance with LFP chemistry
  • Smart monitoring and seamless integration
  • Eligible for federal and state battery rebates

Alpha ESS systems are trusted for reliability, modern design and affordability.

💰 How are prices calculated?

We like to keep things simple and transparent, so you always know what you’re paying for — and what you’re saving.

Total Price = Battery Price – Federal Battery Rebate

All eligible battery systems receive a federal rebate based on usable capacity. The rebate is currently calculated as:

$350 × Usable kWh of the battery

For example, let’s say you’re looking at a battery system with 15 kWh usable capacity. The rebate would be:

$350 × 20.2 = $7,070.00 federal rebate

So if the system’s full retail price is $17,000, the displayed price on our website would be:

$14,410.00 – $7,070.00 = $7,340.00

This is the amount you’d typically pay (incl. GST) for standard installation. 

✅ No paperwork is needed — we apply the rebate upfront and handle the claim process for you.

✅ Our Online Price Includes:

  • The full battery + hybrid inverter bundle
  • Federal rebate already applied
  • Standard installation in metro areas
  • Monitoring app setup and commissioning
  • Certified installation by a CEC-accredited professional
  • GST included

📌 Final Quote May Vary Based On:

  • Your property’s location and accessibility
  • Switchboard condition or upgrade requirements
  • Distance between the switchboard and the battery location
  • Additional installation materials, if needed

We’ll provide a personalised quote before any work begins — no surprises, no pressure. 
Plan Your Install

🛠️ Plan Your Install

Before we can confirm your quote or schedule an installation, we need to understand a bit about how and where you'd like the battery installed.

  • ✅ Whether you're installing the battery inside (garage) or outside (side of house)
  • ✅ Whether your system is being installed as an AC-Coupled setup (added to an existing solar system), or a DC-Coupled setup (as part of a new installation or replacing an exising inverter)

These options affect:

  • How the system is wired
  • Where components can be safely mounted
  • What rebates may apply
  • The type of photos we’ll need from you

Choose your scenario below:

🏠 Garage Install – DC-Coupled
Garage DC-Coupled

A battery and a hybrid inverter were installed inside the garage, replacing the old inverter.

📷 Photos we need from you:

  • Photo of your Switchboard
  • Garage wall where the battery will go
  • Wide shot of the garage area
  • Existing solar inverter (if applicable)
🏠 Garage Install – AC-Coupled
Garage AC-Coupled

Battery added to existing solar system, installed in the garage.

📷 Photos we need from you:

  • Existing solar inverter
  • Photo of your Switchboard
  • Proposed battery location in garage
  • Wide shot of garage area
🏡 Outdoor Install – DC-Coupled
Outdoor DC-Coupled

Battery and hybrid inverter installed outside, replacing the old inverter.

📷 Photos we need from you:

  • Photo of your Switchboard
  • Outdoor wall where battery + inverter will go
  • Photo of outdoor wall where battery will go
  • Existing solar inverter (if applicable)
🏡 Outdoor Install – AC-Coupled
Outdoor AC-Coupled

Battery added to existing solar system, installed outside the home.

📷 Photos we need from you:

  • Existing inverter location
  • Wall where battery will go
  • Photo of your Switchboard
  • Wide shot of outdoor area (for clearance/access)

📤 Send these photos with your quote request — or upload them using our quote form to fast-track your assessment.
FAQs

❓ Frequently Asked Questions

Q: What is Alpha ESS?

A: Alpha ESS is a premium home energy storage system that stores excess solar energy to use at night, during power outages, or when electricity prices are high.

Q: What battery sizes are available?

A: You currently offer these capacity options:  10.1 kWh — 13.3 kWh — 20.2 kWh — 26.6 kWh — 30.3 kWh — 39.9 kWh — 40.4 kWh — 50.5 kWh

Q: How long is the warranty?

A: 10-year battery warranty, 10-year inverter warranty for the Smile series

Q: Ready to future-proof your home?

A: Alpha ESS gives you reliable energy, bill savings & blackout protection — day and night.
Downloads

📁 Downloads
📄 Alphas ESS Battery Brochure 📄 Hybrid Inverter Spec Sheet

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