Contact Vendor

AlphaESS

SMILE-G3-S5

Name: AlphaESS SMILE-G3-S5
Brand: AlphaESS

Residential AIO

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

AC Phase

AC Rated Power

5 kW

MPPT Count

Battery Capacity Min

3.8 kWh

Backup / EPS Supported

true

IP Rating

IP65

Highly modular and scalable from 3.8kWh up to 60.5kWh usable energy.
VPP-ready architecture allows homeowners to participate in virtual power plants.
Supports 200% PV input power oversizing for maximum solar capture.

ResidentialInstaller comparisonEU market

Applicable Countries

DE - GermanyIT - ItalyES - SpainFR - FranceBE - BelgiumNL - Netherlands

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 Phase	1P
AC Rated Power	5 kW
Max AC Output Current	21.7 A
Power Factor Range	0.8 leading...0.8 lagging
THD	3 %
MPPT Count	2
Max DC Voltage	580 V
MPPT Voltage Range	100-550 V
Max Current per MPPT	15 A
Recommended PV Power	10 kWp
Max Efficiency	97.3 %
EU Efficiency	96.6 %

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 Chemistry	LFP
Battery Voltage Class	HV
Battery Capacity Min	3.8 kWh
Battery Capacity Max	60.5 kWh
Max Charge Power	5 kW
Max Discharge Power	5 kW
Round-trip Efficiency	95 %

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 Supported	true
Backup Rated Power	5 kW
Switch Time	10 ms
Black Start	Yes
Parallel Support	Yes
Max Parallel Units	3 units
Generator Input Supported	true

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 Modes	Self-consumption, TOU, VPP
Export Limitation Supported	true
Meter Type Supported	RS485
Remote Monitoring Platform	AlphaCloud
API Supported	true

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 Rating	IP65
Operating Temp Range	-10...50
Max Altitude	3000 m
Humidity Range	0~90%
Wiring Terminal Type	-
Max Cable Size	-
Dimensions (W x H x D)	610 x 212 x 366 mm
Weight	19.5 kg
Noise	35 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	Type II
AC Surge Protection	-
AFCI	Yes
Anti-islanding	Yes
Certifications	VDE-AR-N 4105, CE, IEC 62109, EN 50549

Typical System Setup

Maximized Solar Home

Large single-phase residential PV systems needing optimized storage.

Grid Type: Single-phase on-grid

Suitable For: Single-family homes with EV charging or high daytime loads.

Main Components

SMILE-G3-S5 Inverter, 2x 10.1P Battery Modules, Smart Meter

Notes

Utilizes the 10kWp PV oversizing capability.

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

Full Backup Resilience

Providing continuous power to essential circuits during grid failure.

Grid Type: Hybrid with UPS Backup

Suitable For: Home offices or areas with occasional grid instability.

Main Components

SMILE-G3 Inverter, 3x 10.1P Modules, Critical Load Sub-panel

Notes

Supports black start and UPS-grade switching.

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-S5 Datasheet

Open file

Type: PRODUCT_IMAGE

SMILE-G3-S5 Product Image

Open file

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