Take Control of Your Energy with Alpha ESS
As one of the world’s leading solar battery manufacturers, Alpha ESS delivers high-performance, affordable, and intelligent energy storage solutions designed for Australian conditions. With more than 12 years of global expertise, Alpha ESS combines innovation, safety, and scalability, making it a trusted choice for both homeowners and businesses looking to lower electricity costs and gain energy independence.
In 2022 and 2023, Alpha ESS ranked #1 in Australia for total solar battery installations (by volume), according to SunWiz. In 2025, they remain #2 in market share, just behind Sungrow, proof of their continued reliability and strong market reputation.
Whether you are a homeowner looking to reduce energy bills or a business aiming for sustainability, Alpha ESS offers a powerful range of batteries that fit your needs.
Why Choose Alpha ESS for Your Solar Battery System
Australian CEC-Approved & Rebate-Eligible
Alpha ESS solar batteries are Clean Energy Council (CEC) approved, they meet Australia’s highest standards for safety, reliability, and performance. This makes them eligible for government rebates, such as the Cheaper Home Batteries Program, helping you save thousands on installation.
Trusted Global Brand with Local Support
Alpha ESS has a local office in Australia and provides excellent technical support, spare parts, and warranty management directly through their Australian distributor network. This ensures faster service, clear communication, and peace of mind for every installation.
Modular Design for Flexibility
Alpha ESS batteries feature a modular and stackable design, allowing you to start small and expand later as your energy needs grow. You can easily add more battery modules to increase capacity, perfect for households upgrading to EVs or expanding their solar systems.
Smart Technology for Maximum Control
Each Alpha ESS battery connects to the Alpha Cloud platform, built on Microsoft Azure, allowing you to –
Monitor your system’s performance in real time
Check energy generation, usage, and savings
Remotely control your system through the Alpha ESS mobile app
Access historical data to optimise your energy usage patterns
Key Technical Advantages
Cobalt-Free, Safe & Sustainable LiFePO₄ Chemistry
Unlike older lithium-ion batteries, Alpha ESS uses Lithium Iron Phosphate (LiFePO₄) technology, which is –
Thermally stable – safer with minimal risk of overheating
Long-lasting – over 8,000 cycles at 80% depth of discharge
High efficiency – less energy loss during charging/discharging
AC & DC Coupling Options
Alpha ESS systems are compatible with both AC and DC configurations –
AC-coupled – Perfect for adding a battery to an existing solar setup without replacing the inverter.
DC-coupled – Ideal for new installations, where the solar panels and batteries are connected to a single hybrid inverter, maximising energy efficiency.
Built-In Energy Management System (EMS)
The integrated EMS automatically manages charging, discharging, and grid interaction. It optimises when to use solar energy, when to charge the battery, and when to draw from the grid, ensuring you get the best savings and self-consumption rate possible.
Backup Power Capability
Alpha ESS batteries support blackout protection, ensuring your lights, fridge, and essential appliances keep running even during outages.
Alpha ESS SMILE 5
System Power Output – 5 kW
Battery Capacity Options – 2.9 kWh / 5.7 kWh / 10.1 kWh / 13.3 kWh
Expandable Capacity Range – From 2.9 kWh up to 80 kWh
Battery Chemistry – LiFePO₄ (Lithium Iron Phosphate)
Max Charging / Discharging Current – 100 A
Operating Temperature Range – –10°C to 50°
IP Protection Rating – IP65 (Outdoor) / IP21 (Indoor)
System Type – DC-coupled, AC-coupled, and hybrid-compatible
Backup Power Capability – Yes – UPS Function
Warranty – 5-Year Product Warranty + 10-Year Battery Performance Warranty
Alpha ESS offers a range of battery models suited for both residential and commercial applications. Below are some of their most popular systems –
SMILE-B3
The Alpha ESS SMILE-B3 is a compact and efficient AC-coupled solar battery system designed specifically for homes that already have solar panels installed but no battery storage yet. It’s the perfect retrofit solution for homeowners looking to store excess solar power, reduce grid reliance, and enjoy energy security, without replacing their existing inverter.
Alpha ESS Smile B3
System Type – AC-Coupled
Rated Power Output – 3 kW
Battery Capacity Range – 2.9 kWh – 17.2 kWh (Expandable up to 6 modules)
Battery Chemistry – LiFePO₄ (LFP)
Depth of Discharge (DoD) – 96%
Max Charge / Discharge Current – 60 A
Operating Temperature Range – –10 °C to +50 °C
IP Protection Rating – IP65 (Outdoor) / IP21 (Indoor)
Dimensions (W × D × H)- 610 × 219 × 650 mm
Installation Type – Floor-standing or wall-mounted
Monitoring- Alpha ESS Cloud Platform (App + Web)
Warranty- 5 Years Product Warranty + 10 Years Performance Warranty
Appha ESS Smile T10 HV
The Alpha ESS SMILE-T10-HV is a high-performance 10 kW three-phase solar battery system designed for larger homes, commercial sites, and properties with higher energy demands. Equipped with 8.2 kWh high-voltage battery modules, it delivers exceptional power, efficiency, and flexibility, making it ideal for both residential and small commercial applications.
Alpha ESS Three-Phase Hybrid
System Type – Three-Phase Hybrid
Rated Power Output – 10 kW
Battery Capacity Range – 8.2 kWh – 49.2 kWh
Battery Chemistry – LiFePO₄ (Lithium Iron Phosphate)
Depth of Discharge (DoD) – 95%
Max Charging / Discharging Current – 40 A
Maximum PV Input – 16 kW
Operating Temperature Range – –10 °C to +50 °C
IP Protection Rating – IP65 (Outdoor) / IP21 (Indoor)
Monitoring – Alpha Cloud Platform (App + Web)
Warranty – 5-Year Product Warranty + 10-Year Battery Performance Warranty
Frequently Asked Questions (FAQs)
1.What is an Alpha ESS solar battery?
Alpha ESS batteries are smart energy storage systems that store excess solar power generated during the day, so you can use it at night or during power outages. They help reduce electricity bills, improve energy independence, and ensure a reliable power supply for homes and businesses.
2.What makes Alpha ESS batteries different from others?
Alpha ESS combines advanced LiFePO₄ (Lithium Iron Phosphate) battery chemistry with intelligent energy management software. Their systems are safe, durable, modular, and CEC-approved, offering long cycle life, real-time monitoring through the Alpha Cloud app, and compatibility with Virtual Power Plant (VPP) programs across Australia.
3.Which Alpha ESS battery model should I choose?
That depends on your energy needs and system type –
SMILE-B3 – Perfect for retrofitting to existing solar systems (AC-coupled).
SMILE-5 – Ideal for new single-phase installations (hybrid-coupled).
SMILE-T10-HV – Best for large homes and businesses with three-phase power.
All models can be expanded modularly to increase capacity as your needs grow.
4.What is the battery capacity range for Alpha ESS systems?
Alpha ESS batteries come in flexible sizes ranging from 2.9 kWh up to 80 kWh, depending on the model. For example, the SMILE-B3 can be expanded to 17.2 kWh, the SMILE-5 up to 80 kWh, and the SMILE-T10-HV up to 49.2 kWh.
5.Can I add an Alpha ESS battery to my existing solar system?
Absolutely. The SMILE-B3 model is specifically designed for AC-coupled retrofits, meaning it can connect to most existing solar inverters. If you are installing a new solar system, the SMILE-5 or SMILE-T10-HV hybrid models are excellent options.
6.How long do Alpha ESS batteries last?
Alpha ESS batteries are designed for over 8,000 charge cycles (at 80% depth of discharge), which translates to 10 – 15 years of reliable use, depending on daily cycling.
7.Are Alpha ESS batteries eligible for government rebates?
Yes. Since Alpha ESS systems are Clean Energy Council (CEC) approved, they are eligible for federal battery rebate programs, such as the Cheaper Home Batteries Program incentives.
8.Can I monitor my Alpha ESS battery remotely?
Yes. All Alpha ESS systems connect to the Alpha Cloud monitoring platform, available via mobile app or web browser. You can track your solar generation, energy consumption, savings, and battery performance in real time.
9.Is the Alpha ESS battery compatible with Virtual Power Plants (VPPs)?
Yes. Alpha ESS systems are VPP-ready, they can integrate with approved VPP networks. This allows you to sell stored energy back to the grid, reduce demand charges, and potentially earn credits or payments.
Why Australians Choose Alpha ESS
Affordable, efficient, and scalable solar battery systems
CEC-approved and rebate-eligible across multiple states
Local support and service network in Australia
Smart technology with app-based monitoring
Safe, reliable, and built with long-life LiFePO₄ chemistry
Get a Free Quote for Your Alpha ESS Battery Whether you are upgrading your existing solar system or installing a new solar + battery package,RKS Energy Solutions can design the perfect Alpha ESS setup for your home or business.
Our expert team will –
Assess your energy needs and roof capacity
Recommend the ideal Alpha ESS battery configuration
Provide a customised quote including installation and monitoring setup
Help you claim government rebates and maximise your return on investment
Call us today at (02) 9659 1034
Email us at info@rksolar.net
Take the next step toward energy independence with Alpha ESS, the trusted name in solar battery storage.
Experience You Can Trust – Over 15 Years in the Solar Industry
Fully Australian-Based – Operating from our headquarters in Castle Hill, NSW, we are a 100% local company. This allows us to quickly deploy our service team to client sites whenever troubleshooting or maintenance is needed.
Dedicated Technical Support – Our in-house technical team is always ready to assist with service support and resolve any troubleshooting queries efficiently.
Industry-Leading Training – Our team stays current with the latest solar technologies through regular manufacturer training. This ensures faster service and minimal downtime for our clients.
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