Alpha ESS 39.9kWh Battery + SMILE5-INV 5kW Hybrid Inverter

The Alpha ESS 39.9 kWh Battery, paired with the SMILE5-INV 5KW Hybrid Inverter (supporting up to 7.5 kW PV input), delivers a powerful and scalable home energy storage solution designed for large homes, EV charging households, small commercial sites, and off-grid capable living.

This advanced Alpha ESS system enables you to store a large amount of solar energy, significantly reduce grid reliance, and maintain essential operations during blackouts — while accessing federal and state rebates for strong financial returns.

This configuration helps you:

• Use more solar during night-time and peak-rate hours
• Lower electricity bills with increased self-consumption
• Maintain household and business continuity during outages
• Benefit from generous government rebates

With 39.9 kWh usable battery storage and a 5 kW hybrid inverter, this system offers:

• Efficient charging from up to 7.5 kW rooftop PV
• Smooth single-phase power delivery for residential circuits
• Seamless automatic transition between solar, battery and grid

This setup can typically support large household loads — including HVAC systems, refrigeration, water pumps, EV charging, and continuous appliances — for 28–48 hours, depending on usage.

With a 10-year manufacturer warranty, Alpha Cloud smart monitoring, and CEC-accredited installation, this system provides powerful energy independence, reliability, and outstanding long-term savings.

🔑 Key Features

• 39.9 kWh usable capacity — Designed for high-demand homes + light commercial applications
• 5 kW single-phase hybrid inverter — Efficient performance for residential loads
• Blackout protection — Maintains critical circuits during grid failure
• Advanced LFP (Lithium Iron Phosphate) battery technology — Safer, more durable, long cycle life
• Modular + scalable — Storage can grow with energy demand
• Smart monitoring via Alpha Cloud — Real-time performance tracking and control
• All-weather rated — IP65 inverter for outdoor-friendly installation
• Quiet operation — Low-noise for home and business environments
• 10-year comprehensive warranty — Full protection 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:

• 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 × 39.9 = $13,965.00 federal rebate

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

$23,760.00 – $13,965.00 = $9,795.00

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.