Energidea
AlphaESS SMILE-G3-B5

AlphaESS

SMILE-G3-B5

Residential AIO

All-in-one residential storage system for installation and compliance comparison.

AC Phase

1P

AC Rated Power

5 kW

MPPT Count

0

Battery Capacity Min

3.8 kWh

Backup / EPS Supported

true

IP Rating

IP65

  • Seamless retrofit solution compatible with all existing grid-tied PV systems.
  • VPP-ready architecture allows homeowners to participate in virtual power plants.
  • Modular scaling from 3.8kWh to 60.5kWh allows for easy future expansion.
ResidentialInstaller comparisonEU market

Applicable Countries

DE - GermanyIT - ItalyES - SpainFR - FranceBE - BelgiumNL - Netherlands
Core comparison fields are incomplete (>30% missing). Not recommended for direct comparison yet.

Installer AI Prompt

Generate installer-ready prompt templates for ChatGPT or Gemini.

Core Electrical

Data source

AC Phase

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

AC Rated Power

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Max AC Output Current

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Power Factor Range

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

THD

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

MPPT Count

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Max DC Voltage

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

MPPT Voltage Range

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Max Current per MPPT

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Recommended PV Power

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Max Efficiency

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

EU Efficiency

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

AC Phase1P
AC Rated Power5 kW
Max AC Output Current21.7 A
Power Factor Range0.8 leading...0.8 lagging
THD3 %
MPPT Count0
Max DC Voltage-
MPPT Voltage Range-
Max Current per MPPT-
Recommended PV Power-
Max Efficiency95.94 %
EU Efficiency94.71 %

Battery

Data source

Battery Chemistry

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Battery Voltage Class

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Battery Capacity Min

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Battery Capacity Max

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Max Charge Power

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Max Discharge Power

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Round-trip Efficiency

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Battery ChemistryLFP
Battery Voltage ClassHV
Battery Capacity Min3.8 kWh
Battery Capacity Max60.5 kWh
Max Charge Power5 kW
Max Discharge Power5 kW
Round-trip Efficiency95 %

Backup

Data source

Backup / EPS Supported

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Backup Rated Power

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Switch Time

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Black Start

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Parallel Support

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Max Parallel Units

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Generator Input Supported

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Backup / EPS Supportedtrue
Backup Rated Power5 kW
Switch Time10 ms
Black StartYes
Parallel SupportYes
Max Parallel Units3 units
Generator Input Supportedtrue

EMS & Communication

Data source

EMS Modes

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Export Limitation Supported

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Meter Type Supported

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Remote Monitoring Platform

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

API Supported

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

EMS ModesSelf-consumption, TOU, VPP
Export Limitation Supportedtrue
Meter Type SupportedRS485
Remote Monitoring PlatformAlphaCloud
API Supportedtrue

Environment & Mechanical

Data source

Cooling Method

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

IP Rating

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Operating Temp Range

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Max Altitude

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Humidity Range

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Dimensions (W x H x D)

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Weight

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Noise

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Cooling Method-
IP RatingIP65
Operating Temp Range-10...50
Max Altitude3000 m
Humidity Range0~90%
Wiring Terminal Type-
Max Cable Size-
Dimensions (W x H x D)610 x 212 x 366 mm
Weight19.5 kg
Noise35 dB(A)

Compliance & Warranty

Data source

DC Surge Protection

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

AC Surge Protection

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

AFCI

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Anti-islanding

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

Certifications

Source URL: https://www.alpha-ess.co.uk/images/datasheet/Datasheet_EU_SMILE-G3-S3.6S5B5_V09.24062025_UK2.pdf

Source Version: V09.24062025

DC Surge Protection-
AC Surge Protection-
AFCI-
Anti-islandingYes
CertificationsVDE-AR-N 4105, CE, IEC 62109, EN 50549

Typical System Setup

Retrofit Storage

Adding storage to an existing solar PV installation without replacing the inverter.

Grid Type: Single-phase on-grid

Suitable For: Homeowners with older solar systems wanting higher self-consumption.

Main Components

Existing PV Inverter, SMILE-G3-B5, 10.1P Battery Module

Notes

Connects to the AC bus of the house.

Disclaimer: For reference only. Final system configuration should be confirmed based on local regulations, grid requirements, and project conditions.

Files

Type: DATASHEET_PDF

SMILE-G3-B5 Datasheet

Open file

Type: PRODUCT_IMAGE

SMILE-G3-B5 Product Image

Open file

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