Alpha ESS is a globally recognised provider of advanced solar energy systems, renowned for its reliable inverters and innovative energy storage systems. Headquartered in China, Alpha ESS Co Ltd is a leading Chinese company with a global footprint. The company’s SMILE series is designed for residential and commercial applications, offering scalable, high-performance Alphaess battery systems that integrate seamlessly with solar batteries and existing solar systems.
These systems empower homeowners and businesses alike to improve self consumption, reduce reliance on the grid, and ensure blackout protection. With a focus on thermal stability, power supply consistency, and efficient operation, Alpha ESS supports a more sustainable energy future.
Alpha ESS offers multiple product series to cater to different energy demands. These include the SMILE M5, SMILE5, SMILE-G3, and SMILE-B3 Plus, SMILE T10 each with unique specifications to suit varying use cases from residential backup to off grid solutions.
The Alphaess SMILE5 series is ideal for homes aiming to boost their solar ROI while enjoying blackout protection capabilities. This all-in-one unit supports both DC and AC coupling and is expandable over time.
Targeted at higher consumption homes and small commercial installations, the SMILE-G3 series offers high-output Alphaess batteries suitable for peak shaving and VPPs.
The SMILE-B3 Plus is a retrofitting-friendly home battery designed for properties with existing solar. This cost-effective solution is lightweight, AC-coupled, and simple to install.
| Feature | SMILE5 | SMILE-G3 | SMILE-B3 Plus |
| Battery Chemistry | LiFePO₄ | LiFePO₄ | LiFePO₄ |
| Rated Energy (per module) | 5.7 kWh | 3.8 kWh | 5.04 kWh |
| Usable Capacity | 5.7–34.2 kWh | 10.1–60.5 kWh | 5.04–30.24 kWh |
| Output Power | 5 kW | 3.68–5 kW | 3–5 kW |
| Scalability | Up to 6 modules | Up to 6 modules | Up to 6 modules |
| Depth of Discharge | 100% | 95% | 90% |
| IP Rating | IP65 | IP65 | IP65 |
| Cycle Life | >6,000 | >6,000 | >6,000 |
| Warranty | 10 years | 10 years | 10 years |
Each model’s model number can be verified on the Clean Energy Council’s approved list, ensuring quality and rebate eligibility.
Solar Galaxy offers hassle-free Alpha ESS installation Australia-wide, including South Australia. Our SAA-accredited installers conduct full site assessments and ensure compatibility with your current setup.
Made with safe and stable lithium iron phosphate chemistry
| Brand | Alpha ESS | Tesla Powerwall | Sungrow SBR HV | Sigenergy SigenStor |
| Modular | Yes | No | Yes | Yes |
| Capacity | 5.7–34.2 kWh | 13.5 kWh | 9.6–25.6 kWh | 5–48 kWh |
| Warranty | 10 years | 10 years | 10 years | 10 years |
| All-in-One | Yes | Yes | No | Yes |
| Coupling | AC/DC | AC | DC | AC/DC |
“Fortunately, Alpha ESS was the only provider that could produce a scalable system that met our needs,” said a VIC homeowner.
“We’re happy with the full charge we get even in winter. It’s a bit more upfront, but the system is suitable for our large household,” added a South Australia customer.
While Alpha ESS has gained praise for its versatility and affordability, some mixed feedback from earlier users regarding app performance and VPP integration has improved in recent firmware updates.
A recent Alpha ESS battery review noted the system’s strength in seamless operation and solid performance. The review highlighted hassle-free setup and quick charging times, with the battery remaining fully charged overnight.
With its expanding product line and robust support infrastructure, Alpha ESS continues to offer competitive, reliable, and scalable alpha ess systems for the Australian market, whichever size system you need. Whether you’re installing a system for backup, VPP participation, or off grid solutions, Alpha provides strong value with technical flexibility.
Need help choosing the right system? Our Solar Galaxy experts will help you evaluate your energy needs, explain dc coupling vs AC options, and handle the process from consultation to installation. Start your journey with us today.
We offer a curated selection of leading battery brands known for their efficiency, safety features, smart controls, and long cycle life. These brands are compliant with Australian standards and eligible for government rebates.
