Alpha-ESS – SMILE 5 – 5kVA | 5.7 – 34.2kWh Lithium Energy Storage Solution

(1 customer review)

5kW Single Phase Hybrid Inverter with 11.4kWh Lithium Iron Phosphate Batteries

  • 5kW Single Phase Hybrid PV Inverter
  • 1 – 6 x 5.7kWh Lithium Iron Phosphate Batteries with 10 000 Cycle Life
  • Dual MPPT Design
  • Virtual Power Plant ready – eg. coordinate power supply across a residential estate.
  • DC / AC / Hybrid Configurations
  • Sleek, modern design takes up minimal space
  • 24/7 Monitoring through Alpha Cloud
  • Use without solar panels as backup system only
  • Use with solar panels as a complete Hybrid PV system
  • 10 Year Battery Warranty



For larger quantities, please contact us for specialised pricing.

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The SMILE 5 Household Photovoltaic Energy Storage System (ESS) is a new type of complete power solution, combining the power and reliability of award winning inverter manufacturers with the flexibility and longevity of state of the art Lithium Iron Phosphate batteries. All packaged into a sleek, modern package with advanced control and monitoring features.
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Lithium Iron Phosphate, the safest chemistry of all lithium battery types

product Compatibility 1

Designed to be perfectly compatible in new and retrofitted systems

product Reliability

Designed for the European market, thus offering superb performance and longevity

product Multi

Multiple operating modes available

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Modular Design

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Intelligent Control

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Long Lifespan

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Easy Visualization


How it works

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DC Coupled

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AC Coupled

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Basic Specifications

smile5 dimensions
 4600W (DE)
Battery Capacity5.7kWh
Max. Capacity 34.4kWh
Dimensions 600 x 250 x 1800mm
Weight 180kg
Certifications TUV, CE, IEC
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Alpha Cloud

Built on the Microsoft Azure cloud server

Real-time monitoring anywhere with web and mobile apps

Remote control of system for maximum savings

alpha Cloud

Additional information

Weight N/A
Dimensions N/A

No Batteries, 1 x 5.7kWh LiPo4 Battery, 2 x 5.7kWh LiPo4 Batteries, 3 x 5.7kWh LiPo4 Batteries, 4 x 5.7kWh LiPo4 Batteries, 5 x 5.7kWh LiPo4 Batteries, 6 x 5.7kWh LiPo4 Batteries


Charge Controller Type


Inverter Power Rating


Inverter Type


Storage Capacity

5.7kWh, 11.4kWh, 17.1kWh, 22.8kWh, 28.5kWh, 34.2kWh

Storage Type

Lithium Iron (LiFePO4)

1 review for Alpha-ESS – SMILE 5 – 5kVA | 5.7 – 34.2kWh Lithium Energy Storage Solution

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  1. Richard (verified owner)

    Verified reviewVerified review - view originalExternal link

    Although there were some troubleshooting issues, with the help of Yashvir and Kershlyn, our ESS unit was installed. Yashvir especially was very pleasant and proactive, I cannot commend him enough. Five stars

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