Alpha Ess Smile-G3-S5

Prices shown are Dealer prices for companies ONLY and excl. VAT.

NEW Generation! The NEW Almighty Knight!
5kW single phase Residential Hybrid Energy Storage System (ESS) is the 3rd Generation of the successful Alpha Smile 5!

Hybrid inverter

  • Max. PV input: max. 10.0 kW (200% PV Input)
  • Max PV Input Current: 15A
  • Nominal Output: 5 kW AC
  • Max. Charging/Discharging Current: 60 A
  • Backup: UPS (200% overload for 30s if using min. 2 batteries))
  • Off-Grid or Hybrid capable
  • Parallel function (in Off-Grid mode)
  • 3 Modi: DC, AC or Hybrid coupled (with grid forming function)
  • Weight: 12kg
  • Product warranty: 5 years (10 years warranty optional)

Battery Module

This outstanding LFP (LiFePO4) battery is ONLY sold together with the Alpha Smile G3 Inverter as a set or for Smile G3 owners who want to expand their system!

  • Capacity: 10.1kWh (DOD 95%)
  • Usable Capacity: 9.6kWh
  • Nominal Voltage: 96 V
  • Performance warranty: 10 years or 8,000 cycles
  • Product warranty: 5 years 
  • Storage capacity up to 60.5 kWh
  • 6 Max. modules in parallel

Only qualified Installers (certified by Alpha ESS or Solaris) are allowed to install and commission the Alpha ESS products!


New Generation of the successful Smile 5!
This new residential ESS is an All-in-One System with 5kW hybrid single-phase inverter and 10.1kWh battery module.

This product can capture more precise data for stricter VPP requirements like:
CT+EMS communication + DSP response time <100ms (other systems: >10s)
Control accuracy (zero export): 10-20W (other systems ca. 100W)
Also, in off-grid scenario, the NEW Alpha G3-S5 has better performance (200% overload for 30s if using min. 2 batteries) and can work parallel.
In Hybrid coupled mode (with any additional PV Inverter) the NEW Alpha G3-S5 has grid forming function in case of blackout (power cut) and the PV Inverter will continue working!

Lithium iron phosphate, the safest chemistry of all lithium battery types
German design, super performance and long lifespan
Compatible with both new installations and retrofits (AC- or DC-coupled)
Multiple operation modes available
Long Lifetime
Modular design
Intelligent design

Off-Grid Parallel

How It Works



Datasheet Alpha Ess Smile-G3Datasheet Alpha Ess Smile-G3    


Alpha Smile G3-S5 Manual_EN_SMILE-G3_V01.01092022Operation & Maintenance Manual Alpha Ess Smile-G3    



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