AlphaESS Battery Storage
Reliable Solar Battery Storage for Australian Homes & Businesses
AlphaESS Battery Storage Australia is a smart and reliable energy solution designed to help Australian homes and businesses maximise solar power and reduce electricity costs. Engineered for performance, safety, and long-term durability, AlphaESS battery systems store excess solar energy for use at night, during peak pricing periods, or in grid outages.
With advanced lithium battery technology, intelligent energy management, and scalable capacity options, AlphaESS offers flexible storage solutions suited to a wide range of residential and commercial applications across Australia. Its systems are built to meet local standards and climate conditions, making them a trusted choice for efficient and sustainable energy independence.
AlphaESS Battery Has 9 Main Battery Storage Models for Australia
- SMILE-M5-S
- SMILE 5
- SMILE-M5-B
- SMILE-G3-T5~T20
- SMILE-G3-S5
- SMILE-M10-S
- SMILE-T10-HV
- SMILE-G3-B5
- StaX-M30/M50-AU
AlphaESS Battery 27.8 kWh + 10kW Hybrid Inverter Package Starting From $6,999*
AlphaESS Battery Storage Packages
30kWh
Battery + 8kWh Hybrid Inverter
- Ideal for small to medium homes & spaces
- Save up to 70% on your electricity bills
- Government rebates & incentives available
35kWh
Battery + 10kWh Hybrid Inverter
- Perfect for medium to large homes
- Maximize solar use with up to 90% independence.
- Provides reliable backup power during outages
40kWh
Battery + 12kWh Hybrid Inverter
- Best suited for large homes or high-energy users
- Provides reliable backup power during outages
- Future-proof solution with long-term savings.
AlphaESS Battery Series
Designed for homes, businesses, and large‑scale solar farms
SMILE-M5-S
SMILE-M5
SMILE-M5-B
SMILE-G3-T5~20
SMILE-G3-S5
SMILE-M10-S
SMILE-T10-HV
SMILE-G3-B5
StaX-M30M50-AU
AlphaESS Battery - SMILE-M5-S
The SMILE-M5-S is a compact and efficient residential battery storage system designed for everyday solar energy optimisation. It combines smart energy management with dependable backup capability, making it ideal for households seeking greater energy independence. With its modular design and easy installation, the system suits modern homes looking for reliable performance and long-term savings.
AlphaESS Battery - SMILE5
The SMILE5 is AlphaESS’s proven single-phase, all-in-one battery system, trusted in Australian homes for its VPP-ready design and reliable UPS backup. It offers a wide capacity range from 13.3kWh up to 80kWh, making it suitable for households wanting long-term scalability from a single hybrid inverter.
AlphaESS Battery - SMILE-M5-B
The SMILE-M5-B is an AC-coupled single-phase battery designed to retrofit onto existing solar systems without replacing your current inverter. It supports up to 200% PV oversizing and includes built-in aerosol fire protection for enhanced safety.
AlphaESS Battery - SMILE-G3-T5~T20
The SMILE-G3-T5~T20 is a flexible three-phase battery range covering 5kW to 20kW output for homes and small commercial sites with higher energy demands, with a capacity range from 9.3kWh up to 55.8kWh. TÜV-certified and tested to UL9540A standards, it’s integrated with 30+ VPP platforms for smarter energy participation.
AlphaESS Battery - SMILE-G3-S5
The SMILE-G3-S5 is a single-phase energy storage solution built for reliable residential performance and smart energy control. It supports efficient solar self-consumption while providing backup power during outages. With modern safety features and intelligent monitoring, it offers homeowners a balanced combination of convenience, performance, and energy savings.
AlphaESS Battery - SMILE-M10-S
The SMILE-M10-S is AlphaESS’s higher-output single-phase hybrid battery, delivering up to 10kW for larger Australian homes with heavier loads. It uses the same rebate-ready 13.99kWh battery module as the SMILE-M5-S, scaling up to 27.98kWh, and supports up to 20kW of solar input across 4 MPPTs.
AlphaESS Battery - SMILE-T10-HV
The SMILE-T10-HV is a high-voltage battery system designed for advanced residential and light commercial applications. Its high-efficiency architecture supports greater energy throughput and strong system performance, particularly for properties with larger solar arrays. Engineered for durability and scalability, it provides dependable energy storage for long-term use.
AlphaESS Battery - SMILE-G3-B5
The SMILE-G3-B5 is a modular battery unit developed to expand compatible energy storage systems with additional capacity. It provides reliable performance and efficient energy retention while maintaining system stability. Designed for flexibility, it supports customised energy solutions for homes and businesses that require greater storage capability.
AlphaESS Battery - StaX-M30M50-AU (Coming soon)
The StaX-M30 and M50-AU systems are large-capacity energy storage solutions designed for commercial and industrial applications. Built for high performance and scalability, they support significant energy storage requirements and advanced power management. These upcoming systems are engineered to deliver reliable large-scale storage, helping businesses optimise energy use and improve resilience.
Specifications of AlphaESS Battery Series
The most advanced home battery system with integrated solar inverter technology
12.5 kWh
Usable Energy Capacity
60 A
Peak Power Output
95%
Round-Trip Efficiency
10 Years
Comprehensive Warranty
Core technical features of AlphaESS Battery Series:
The AlphaESS battery series is characterized by its modular design, safe lithium-ion chemistry, and advanced smart management features. Key technical pillars across the residential and commercial lineups include:
1. Battery Chemistry & Safety
- LiFePO4 (LFP) Technology: All models utilize Lithium Iron Phosphate cells, which are thermally stable and safer than traditional lithium-ion chemistries.
- Aerosol Fire Defense: Newer G3 models include built-in aerosol suppression systems and anti-explosion valves to contain fire risks automatically.
- IP65/IP66 Protection: Most units are rated IP65 or higher, allowing for both indoor and outdoor installations in varied climates
2. Modular Scalability
- Expansion Flexibility: Systems are designed with a “plug-and-play” modular approach, allowing users to start with a single module (typically 3.8 kWh to 10.1 kWh) and expand as energy needs grow.
- Bypass Technology: The patented BypassTech in G3 and StaX models isolates faulty battery modules without disrupting the entire system, ensuring continuous operation.
- Mixed-Battery Support: Newer systems allow for the mixing of older and newer battery modules within the same stack.
3. Performance & Efficiency
- High Round-Trip Efficiency: The series typically delivers a round-trip efficiency of 90% to 95%, minimizing energy loss during charging and discharging.
- UPS Backup: Systems provide an uninterruptible power supply (UPS) function with a switchover time of <10ms to <15ms, keeping critical loads running during grid outages.
- High Discharge Rates: Certain high-voltage (HV) models support up to 1.2C discharge rates, allowing more appliances to run simultaneously compared to standard 48V systems.
4. Intelligent Management
- AlphaCloud & App Control: Users can monitor energy production, consumption, and battery health in real-time via the AlphaCloud mobile and web platforms.
- VPP Ready: Modern units are designed for Virtual Power Plant (VPP) participation, enabling automatic energy trading and grid support.
- Smart Tariffs: The systems can be programmed to prioritize charging during off-peak hours and discharging during peak hours to maximize savings.
5. Longevity & Warranty
- Cycle Life: Most residential models are rated for 10,000 cycles, representing a lifespan of roughly 10–15 years under standard conditions.
- Warranty: Typically backed by a 5-year product warranty and a 10-year performance warranty that guarantees at least 70% to 80% capacity retention.
Technical Overview – AlphaESS Battery Series
The table below summarises the technical overview of the AlphaESS Battery storage system offered in Australia.
Feature | SMILE-M5-S | SMILE-M10-S | SMILE5 | SMILE-G3-S5 | SMILE-G3-B5 | SMILE-T10-HV | SMILE-G3-T5~T20 | SMILE-M5-B | StaX-M30/M50 |
System Compatibility | Single-Phase | Single-Phase | Single-Phase | Single-Phase | Single-Phase (AC-coupled) | Three-Phase | Three-Phase | Single-Phase (AC-coupled) | Three-Phase |
Nominal Output | 5 kW | 8/9/10 kW | — | 5 kW | 5 kW | 10 kW | 5/10/15/20 kW | — | 30/50 kW |
Battery Module Capacity | 5 kWh or 13.99 kWh | 13.99 kWh (SMILE-M-BAT-13.9P) | — | 9.3 kWh | 9.3 kWh | 8.2 kWh | 9.3–55.8 kWh (T5/T10); 18.6–55.8 kWh (T15/T20) | — | 12 kWh/module |
System Capacity Range | 5–30 kWh / 13.99–27.98 kWh | 13.99–27.98 kWh | 13.3–80 kWh | 9.3–37.2 kWh (95% DoD) | 9.3–37.2 kWh | 8.2–49.2 kWh | 9.3–55.8 kWh / 18.6–55.8 kWh | — | 53.75–193.5 kWh |
Cell Tech | LiFePO4 | LiFePO4 | LiFePO4 | LiFePO4 | LiFePO4 | LiFePO4 | LiFePO4 | LiFePO4 | LiFePO4 |
Max Charge/Discharge (module) | 100A/100A (5kWh) or 105A/105A (13.99kWh) | 105A/105A | — | 52.5A/52.5A | 52.5A/52.5A | 32A/32A | Varies by module | — | 30/50 kW |
Module Weight | 49.5kg (5kWh) / 115kg (13.99kWh) | 108 kg | — | 81 kg | 81 kg | 88 kg | — | — | — |
Module Dimensions (W×H×D) | 620x240x390mm / 620x240x710mm | 620x240x710mm | — | 610x634x210mm | 610x634x210mm | 580x820x213mm | — | — | — |
MPPTs | — | 4 | — | — | — | — | — | — | — |
Max PV Input | — | Up to 20 kW | — | — | — | — | — | Up to 200% PV oversizing | — |
IP Rating | IP65 | IP65 | — | IP65 | IP65 (outdoor) | IP65 | — | — | IP66 |
Operating Temp | 0–50°C charge / -10–50°C discharge | -10–50°C | — | -20–50°C | -20–50°C | -10–49°C | — | — | -20–50°C |
UPS Switchover | <10ms | UPS-capable | <10ms | <10ms | <10ms | <10ms | <10ms | <10ms | <10ms |
Warranty | — | — | — | — | — | — | — | — | 10yr product + 10yr battery |
Advanced Features of AlphaESS Battery Series
Engineered for maximum performance and seamless integration
Smart & Scalable Design
The AlphaESS Battery offers a range of advanced features designed to maximise efficiency, safety, and flexibility for Australian homes. Key highlights include:
LiFePO₄ battery technology for enhanced safety and long lifespan
Intelligent Energy Management System (EMS) for optimised energy usage
Real-time monitoring and remote control via app or web portal
Modular, scalable design for flexible capacity expansion
Hybrid, grid-tied, and off-grid system compatibility
Backup power with UPS functionality during outages
High efficiency with deep discharge capability
Multiple communication interfaces (Wi-Fi, Ethernet, CAN, RS-485)
Durable, weather-resistant construction for indoor or outdoor installation
Professional Installation Process
As certified AlphaESS installers, we ensure a seamless installation experience
Site Assessment
We evaluate your home’s energy needs and electrical system to design the optimal Battery storage setup.
System Design
Our engineers create a custom installation plan for your AlphaESS Battery and solar integration.
Professional Installation
Certified technicians install your AlphaESS Battery system with minimal disruption to your home.
Activation & Monitoring
We activate your system and set up the AlphaESS (AlphaPartner) app for real-time monitoring and control.
Why choose AlphaESS Battery storage in Australia?
Choosing AlphaESS for battery storage in Australia is a popular decision due to its leading market position, modular flexibility, and advanced safety features tailored for the local climate. In 2022, AlphaESS captured a 23% market share in Australian energy storage installations, ranking as the #1 brand by volume.
1. Exceptional Scalability and Flexibility
- Modular Design: Unlike many “all-in-one” competitors, AlphaESS allows you to start with a smaller capacity (e.g., 2.9 kWh to 10.1 kWh) and add modules later as your household needs or budget grow.
- Retrofit Friendly: The series includes AC-coupled options like the SMILE-B3, which can be added to existing solar systems without replacing the current inverter.
- High Capacity Potential: Systems can scale significantly, with some residential models reaching up to 60.5 kWh or even 80 kWh through parallel connections.
2. Advanced Safety and Durability
- LFP Chemistry: AlphaESS uses Lithium Iron Phosphate (LiFePO4), which is chemically more stable and safer than the NMC chemistry used in some other brands, significantly reducing fire risks.
- Australian Climate Readiness: Units are typically IP65-rated, allowing for outdoor installation, and are designed to operate reliably in temperatures ranging from -10°C to 50°C.
- Integrated Safety: Newer models feature built-in aerosol fire suppression and intelligent battery management systems (BMS) to protect against overcharging and thermal runaway.
3. Financial Benefits and Efficiency
- Cost-Effectiveness: AlphaESS is often priced lower than premium competitors like Tesla Powerwall, with installed costs typically ranging from 6,499 to 10,999 AUD.
- High Cycle Life: Rated for up to 10,000 cycles, these batteries are built for long-term use (10–15 years) and offer high round-trip efficiency of up to 95–97%.
- Rebate Eligibility: All models are CEC-approved, making them eligible for Australian government incentives like the federal Small-scale Technology Certificate (STC) subsidy and state-specific battery rebates.
Benefits Of Using AlphaESS Battery in Australia
Choosing AlphaESS in Australia offers four primary advantages:
1. Market-Leading Value
- Ranked #2 in Australia: the second-most installed residential battery brand by volume.
- Cost-Effective: Typically $1,000–$3,000 cheaper than premium brands like Tesla, while maintaining similar performance standards.
2. Maximum Flexibility
- Modular “LEGO” Design: You can start with a single 3.8 kWh or 5 kWh module and stack up to 60.5 kWh as your needs grow.
- AC or DC Coupled: Works for both new solar systems and retrofitting into your existing setup without replacing your inverter.
3. Optimized for Australia
- Rebate Ready: Fully CEC-approved, making it eligible for federal STC subsidies and state-specific battery loans (up to $4,000 savings in some states).
- VPP Support: Native integration with Australian Virtual Power Plants (VPPs), such as Amber Electric, to earn grid-sharing credits.
- Safe Chemistry: Uses LiFePO4 (Cobalt-free), which is significantly more stable in high Australian temperatures compared to standard lithium-ion.
4. Protection & Reliability
- Blackout Backup: Features a built-in UPS that switches to battery power in <20ms during an outage.
- Robust Warranty: A 10-year warranty (backed by Munich Re) ensures your battery retains at least 70%–80% of its original capacity.
Conclusion
In conclusion, AlphaESS battery storage systems offer a reliable and future-ready solution for managing solar energy more efficiently. With advanced LiFePO₄ technology, intelligent energy management, scalable capacity, and dependable backup power, these systems are designed to deliver long-term performance and energy independence. Whether for residential or commercial use, AlphaESS provides a flexible, safe, and efficient way to maximise solar savings and maintain power security for years to come.
Alpha ESS Battery FAQs
Is AlphaESS a good battery brand?
Yes. AlphaESS is one of Australia’s leading battery brands, holding around 23% market share and ranking as the #1 brand by installation volume in 2022. Its SMILE series uses safe LiFePO₄ (LFP) chemistry, offers up to 10,000 charge cycles, and is backed by a 10-year warranty guaranteeing at least 70–80% capacity retention.
How much does an AlphaESS battery cost in Australia?
Pricing depends on capacity and inverter size. AlphaESS packages on this page start from $10,399 for a 30kWh battery with an 8kW hybrid inverter, with 35kWh and 40kWh options available for medium to large homes. Final pricing depends on your energy usage, installation complexity, and eligible rebates.
What battery chemistry does AlphaESS use, and is it safe?
All AlphaESS SMILE models use LiFePO₄ (Lithium Iron Phosphate) cells, which are more thermally stable than standard lithium-ion chemistries. Newer G3 models add aerosol fire suppression and anti-explosion valves, and most units are IP65/IP66-rated for safe indoor or outdoor installation.
Can AlphaESS batteries be expanded later?
Yes. AlphaESS uses a modular “plug-and-play” design, letting you start with a single module (roughly 3.8kWh to 10.1kWh) and add more later as your energy needs grow. Some residential setups can scale up to 60.5kWh or higher through parallel connections, and patented BypassTech isolates faulty modules without shutting down the whole system.
Is AlphaESS compatible with existing solar systems and VPPs?
Yes. AlphaESS offers AC-coupled options like the SMILE-B3 that can be retrofitted to existing solar systems without replacing your current inverter. Systems are also VPP-ready, supporting integration with Australian Virtual Power Plants such as Amber Electric for automatic energy trading and grid credits.
What happens during a power outage with an AlphaESS battery?
AlphaESS batteries include a built-in UPS (uninterruptible power supply) function with a switchover time of under 10–20 milliseconds, so backup power kicks in automatically during grid outages to keep essential circuits running.
Is AlphaESS eligible for Australian government battery rebates?
Yes. All AlphaESS models are CEC (Clean Energy Council) approved, making them eligible for the federal STC subsidy and state-specific battery rebates and loans, which can save up to $4,000 in some states, plus the current federal battery rebate promotion.
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