• Alpha Ess 50.5kWh
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Alpha ESS 50.5kWh Battery + Smile S5 G3 Hybrid Inverter Bundle (Up to 10kW PV Input)

Alpha ESS 50.5kWh Battery + Smile S5 G3 Hybrid Inverter Bundle (Up to 10kW PV Input)

$10,155.00
$0.00 $10,155.00
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Overview

📦 About This Bundle

The Alpha ESS 50.5 kWh Battery, combined with the Alpha ESS SMILE-S5 G3 5 kW Hybrid Inverter (supporting up to 10 kW PV input), delivers an ultra-high-capacity energy storage solution designed for large homes, commercial sites, farms, and off-grid capable installations requiring consistent and reliable power around the clock.

This powerful Alpha ESS system allows you to store a massive amount of solar energy, dramatically reduce dependence on the grid, and maintain uninterrupted operation during blackouts — all while taking full advantage of Australia’s federal and state battery rebate programs.

This system helps you:

  • Maximise self-consumption of solar day and night
  • Significantly reduce electricity bills
  • Maintain essential loads during power outages
  • Unlock government rebate savings for a lower upfront cost

Featuring 50.5 kWh usable storage and a 5 kW hybrid inverter, this bundle delivers:

  • Reliable charging from up to 10 kW PV
  • Smooth single-phase integration for home + small site applications
  • Seamless auto-switching between battery, solar, and grid power

This system can typically power heavy household or commercial loads — including HVAC, EV charging, pumps, refrigeration and continuous appliances — for 36–60 hours, depending on usage.

With a 10-year product warranty, advanced Alpha Cloud smart monitoring and professional CEC-accredited installation, this solution delivers ultimate energy independence and superior long-term savings.

🔑 Key Features

  • 50.5 kWh usable capacity — Extreme storage for large homes & off-grid capability
  • 5 kW single-phase hybrid inverter — Ideal for residential + light-commercial usage
  • Blackout protection — Keeps critical loads powered during outages
  • Advanced LFP (Lithium Iron Phosphate) chemistry — Maximum safety & long battery life
  • Modular + expandable — Easily scale storage as power needs increase
  • Smart monitoring via Alpha Cloud — Remote system control & real-time tracking
  • All-weather rated — IP65 inverter suitable for outdoor installations
  • Quiet operation — Perfect for residential environments
  • 10-year comprehensive warranty — Battery + inverter fully covered

🏷️ 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:

  • Local Australian service & support capability
  • CEC-approved and compliant with Australian standards
  • Industry-leading safety using LFP technology
  • Modern design + intelligent monitoring features
  • Eligible for national and state rebate programs

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 × 50.5 = $17,675.00 federal rebate

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

$27,830.00 – $17,675.00 = $10,155.00

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 50.5 kWh Battery, combined with the Alpha ESS SMILE-S5 G3 5 kW Hybrid Inverter (supporting up to 10 kW PV input), delivers an ultra-high-capacity energy storage solution designed for large homes, commercial sites, farms, and off-grid capable installations requiring consistent and reliable power around the clock.

This powerful Alpha ESS system allows you to store a massive amount of solar energy, dramatically reduce dependence on the grid, and maintain uninterrupted operation during blackouts — all while taking full advantage of Australia’s federal and state battery rebate programs.

This system helps you:

  • Maximise self-consumption of solar day and night
  • Significantly reduce electricity bills
  • Maintain essential loads during power outages
  • Unlock government rebate savings for a lower upfront cost

Featuring 50.5 kWh usable storage and a 5 kW hybrid inverter, this bundle delivers:

  • Reliable charging from up to 10 kW PV
  • Smooth single-phase integration for home + small site applications
  • Seamless auto-switching between battery, solar, and grid power

This system can typically power heavy household or commercial loads — including HVAC, EV charging, pumps, refrigeration and continuous appliances — for 36–60 hours, depending on usage.

With a 10-year product warranty, advanced Alpha Cloud smart monitoring and professional CEC-accredited installation, this solution delivers ultimate energy independence and superior long-term savings.

🔑 Key Features

  • 50.5 kWh usable capacity — Extreme storage for large homes & off-grid capability
  • 5 kW single-phase hybrid inverter — Ideal for residential + light-commercial usage
  • Blackout protection — Keeps critical loads powered during outages
  • Advanced LFP (Lithium Iron Phosphate) chemistry — Maximum safety & long battery life
  • Modular + expandable — Easily scale storage as power needs increase
  • Smart monitoring via Alpha Cloud — Remote system control & real-time tracking
  • All-weather rated — IP65 inverter suitable for outdoor installations
  • Quiet operation — Perfect for residential environments
  • 10-year comprehensive warranty — Battery + inverter fully covered

🏷️ 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:

  • Local Australian service & support capability
  • CEC-approved and compliant with Australian standards
  • Industry-leading safety using LFP technology
  • Modern design + intelligent monitoring features
  • Eligible for national and state rebate programs

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 × 50.5 = $17,675.00 federal rebate

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

$27,830.00 – $17,675.00 = $10,155.00

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

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

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

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

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 1 : What is the AlphaESS SMILE-M5-S?

A: The AlphaESS SMILE-M5-S is an all-in-one residential energy storage system featuring a 5kW hybrid inverter and expandable LiFePO4 battery storage from 5kWh to 30kWh.

Q 2 : How much battery capacity does the SMILE-M5-S offer?

A: The system is expandable from 5kWh up to 30kWh using stackable battery modules, making it suitable for different household energy needs.

Q 3 : What battery technology is used in the AlphaESS SMILE-M5-S?

A: The system uses high-quality Lithium Iron Phosphate (LiFePO4 or LFP) battery technology, known for its safety, long lifespan, and reliability.

Q 4 : What inverter is included with the SMILE-M5-S?

A: The system includes a 5kW single-phase hybrid inverter that can manage solar generation, battery storage, and grid interaction.

Q 5 : Can the AlphaESS SMILE-M5-S provide backup power during outages?

A: Yes. The system includes UPS (Uninterruptible Power Supply) backup functionality, helping keep essential appliances running during power outages.

Q 6 : How much solar PV can the SMILE-M5-S support?

A: The inverter supports up to 10,000W of solar PV input power, allowing homeowners to maximize solar energy generation and storage.

Q 7 : Does the SMILE-M5-S support WiFi monitoring?

A: Yes. The system supports both WiFi and Ethernet connectivity, enabling convenient energy monitoring and system management.
Downloads

📁 Downloads
📄 Alpha ESS Battery  📄Alpha ESS Manual DataSheet

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