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Alpha ESS Co Ltd
Rated Power
3 kW
Max Efficiency
—
Phases
Single Phase
Max Input Voltage
—
Min Input Voltage
—
Max Input Current
—
Output Voltage
—
Max Output Current
—
Country of Origin
Unknown
Series
SMILE-B3-PLUS
Warranty
5 years
Weight
60 kg
Dimensions
640×250×725mm
IP Rating
IP65
Operating Temp
-25°C to 60°C
Cooling
Natural
Battery Compatible
No
Backup Capable
Yes
VPP Ready
Yes
ESM Compliant
No
Black Start
No
Grid Forming
No
Export Limiting
No
Remote Monitoring
No
CEC Approved
22 Jan 2022
Approval Expiry
19 Aug 2026
Status
Active
Eligible for Rebates
Yes
Years in AU Market
9 years
Australian Office
Yes
CEC-Approved Batteries
52
CEC-Approved Inverters
36
Trust Level
Moderate
Category
Mid-Tier
$600–$1,200
Perth installed price estimate · medium confidence
Prices vary by installer, configuration, and site complexity. Get exact quotes via our installer matching.
From May 1, 2026, all new battery installations in WA require CSIP-AUS compliant inverters. Verify ESM status with your installer.
Perth's high ambient temperatures (regularly 35°C+) can reduce inverter efficiency and trigger thermal throttling. For installations in direct sun or non-ventilated garages, consider inverters with active cooling and wide operating temperature ranges. All grid-connected installations require Western Power approval.
Compare this inverter with batteries for a complete system analysis
Based on 5 PSH/day (BOM) with 15% system derate.
Australian Office
Has local presence
Website
www.alpha-ess.com.auSMILE-B3-PLUS (AS4777-2 2020)
3 kW · 1φ
SMILE-B3-PLUS III (AS4777-2 2020)
3 kW · 1φ
SMILE-B3-PLUS IV (AS4777-2 2020)
3 kW · 1φ
SMILE-B3-PLUS V (AS4777-2 2020)
3 kW · 1φ
SMILE-B3-PLUS VI (AS4777-2 2020)
3 kW · 1φ
SMILE-B5 (AS4777-2 2020)
5 kW · 1φ
Other CEC-approved products from Alpha ESS Co Ltd available in Australia.
M4856-P
2.8 kWh · LFP
SMILE-B3-PLUS (AS4777-2 2020)
4.79 kWh · LFP
SMILE-B3-PLUS II (AS4777-2 2020)
9.58 kWh · LFP
SMILE-B3-PLUS III (AS4777-2 2020)
14.36 kWh · LFP
SMILE-B3-PLUS IV (AS4777-2 2020)
19.15 kWh · LFP
SMILE-B3-PLUS V (AS4777-2 2020)
23.94 kWh · LFP
Get matched with SAA-accredited Perth installers who can recommend the best inverter and battery combination for your home.
About this data
All inverter specifications are sourced from the CEC Approved Products Register. Specifications are provided as published by the CEC and may differ from manufacturer datasheets. Verify current specifications with the manufacturer or your installer before purchasing. Not all listed models may be currently available in Western Australia.