Energidea
AlphaESS Smile-B3-Plus

AlphaESS

Smile-B3-Plus

Residential AIO

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

AC Phase

1P

AC Rated Power

3 kW

MPPT Count

-

Battery Capacity Min

4.79 kWh

Backup / EPS Supported

true

IP Rating

IP65

  • Seamless retrofit solution that works with all existing grid-tied PV systems.
  • Highly modular design allows capacity expansion up to 30.24kWh.
  • Integrated IP65 protection for flexible indoor or outdoor installation options.
ResidentialInstaller comparisonEU market

Applicable Countries

DE - GermanyIT - ItalyUK - United KingdomBE - BelgiumES - SpainFR - France
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.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

AC Rated Power

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Max AC Output Current

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Power Factor Range

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

THD

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

MPPT Count

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Max DC Voltage

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

MPPT Voltage Range

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Max Current per MPPT

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Recommended PV Power

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Max Efficiency

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

EU Efficiency

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

AC Phase1P
AC Rated Power3 kW
Max AC Output Current13 A
Power Factor Range0.8 leading...0.8 lagging
THD3 %
MPPT Count-
Max DC Voltage-
MPPT Voltage Range-
Max Current per MPPT-
Recommended PV Power-
Max Efficiency90 %
EU Efficiency-

Battery

Data source

Battery Chemistry

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Battery Voltage Class

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Battery Capacity Min

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Battery Capacity Max

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Max Charge Power

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Max Discharge Power

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Round-trip Efficiency

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Battery ChemistryLFP
Battery Voltage ClassLV
Battery Capacity Min4.79 kWh
Battery Capacity Max28.74 kWh
Max Charge Power3 kW
Max Discharge Power3 kW
Round-trip Efficiency95 %

Backup

Data source

Backup / EPS Supported

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Backup Rated Power

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Switch Time

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Black Start

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Parallel Support

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Max Parallel Units

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Backup / EPS Supportedtrue
Backup Rated Power3 kW
Switch Time10 ms
Black StartYes
Parallel SupportYes
Max Parallel Units6 units
Generator Input Supported-

EMS & Communication

Data source

EMS Modes

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Export Limitation Supported

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Meter Type Supported

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Remote Monitoring Platform

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

API Supported

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

EMS ModesSelf-consumption, Time-of-use, UPS
Export Limitation Supportedtrue
Meter Type SupportedRS485
Remote Monitoring PlatformAlphaCloud
API Supportedtrue

Environment & Mechanical

Data source

Cooling Method

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

IP Rating

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Operating Temp Range

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Max Altitude

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Humidity Range

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Dimensions (W x H x D)

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Weight

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Noise

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Cooling Method-
IP RatingIP65
Operating Temp Range-10...50
Max Altitude3000 m
Humidity Range15%...85%
Wiring Terminal Type-
Max Cable Size-
Dimensions (W x H x D)610 x 236 x 625 mm
Weight64 kg
Noise30 dB(A)

Compliance & Warranty

Data source

DC Surge Protection

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

AC Surge Protection

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

AFCI

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Anti-islanding

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

Certifications

Source URL: https://www.alphaess.com/smile-b3-plus-3kw-residential-energy-storage-system

DC Surge Protection-
AC Surge Protection-
AFCI-
Anti-islandingYes
CertificationsVDE-AR-N 4105, CE, UN38.3, IEC62619

Typical System Setup

AC Retrofit

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

Grid Type: On-grid with Storage

Suitable For: Homeowners with older solar installations wanting to increase self-consumption.

Main Components

Smile-B3-Plus, SMILE-BAT-5P, Existing String Inverter, Smart Meter

Notes

Connects directly 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.

Backup / UPS

Providing emergency power to essential circuits during grid outages.

Grid Type: On-grid with Backup

Suitable For: Homes in areas with occasional grid instability.

Main Components

Smile-B3-Plus, Essential Load Sub-panel

Notes

Switching time less than 10ms ensures computers and routers remain online.

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

Files

Type: DATASHEET_PDF

Smile-B3-Plus Datasheet

Open file

Type: PRODUCT_IMAGE

Smile-B3-Plus Product Image

Open file

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