Hybrid inverter · Alpha ESS · CEC approved December 2025

Alpha ESS SMILE5-INV

CEC listing: SMILE5-INV (AS4777-2 2020)

A 5 kW single-phase hybrid inverter that is battery-ready and on Synergy's approved inverter list.

On Synergy's approved inverter list: YesSynergy's Supported Solutions List covers inverters approved for battery control. A battery system needs an inverter on this list to be eligible for the WA Battery Scheme. Other scheme conditions apply.
Rated power: 5kWHow much solar it can run at once
Battery-ready: YesHybrid: a battery plugs straight in, no second box

Datasheet (PDF)

SMILE5-INV: the short answer

Feed-in credits (DEBS)DEBS pays for exports only when the inverter is 5 kW or less: YesDEBS pays for exports only when the inverter is 5 kW or less
On Synergy's approved inverter listMatched to this exact model. Other scheme conditions apply: YesMatched to this exact model. Other scheme conditions apply

What we can tell you

Read from the figures on this page. No review written yet.

It is a hybrid inverter: solar and a battery run from the one unit, so adding a battery later doesn't need a second box.
It runs on a standard single-phase supply.
On Synergy's approved inverter list. Synergy's Supported Solutions List covers inverters approved for battery control. A battery system needs an inverter on this list to be eligible for the WA Battery Scheme. Other scheme conditions apply.
It is CEC-approved, which a new install needs to qualify for STCs.

Key specs, in plain terms

The numbers that matter for a home. The full datasheet is below.

Rated power: 5kW; How much solar it can turn into usable power at once
Max efficiency: Not on file: we don't have this figure from the manufacturer's documents yet; How much of the solar you make reaches the house
Phases: Single; Runs on a standard single-phase supply
Type: Hybrid; Runs solar and a battery from one unit
Warranty: 5yr; How long Alpha ESS Co Ltd stands behind it

Not on file: we don’t have this figure from the manufacturer’s documents yet, so we leave it blank rather than print a typical value. Ask your installer to confirm it on the quote. Seen it in a document? Tell us

Full datasheet

Every figure on file for the Alpha ESS SMILE5-INV, by section.

Full datasheet, by section
Specification	Value
Rebate eligibility
On Synergy's approved inverter list	Yes
Installation requirements
Top clearance	200 mm
Side clearance	150 mm
AC breaker	40 A
Cable gauge	6 mm²
Earthing method	TN-S
DNSP pre-approval	Yes
Estimated install time	5 hrs

Parsed from the manufacturer datasheet, install manual, and warranty document. Confirm against the linked PDFs before relying on a value for a quote or installation.

Features and CEC approval

Battery compatible: Yes
Backup capable: Yes
CEC approved: 22 Dec 2025
Approval expiry: 3 Nov 2027
Status: Active
Listed for STCs: Yes

About Alpha ESS

Years in the Australian market: 9 years
Australian office: Yes
Category: Mid-Tier
CEC-approved inverters: 43
CEC-approved batteries: 76

View full profile →

Explore your options

Compare quotes from installers you choose

WA compliance

On Synergy's approved inverter list: Yes
ESM compliant: Check

On Synergy's approved inverter list. Synergy's Supported Solutions List covers inverters approved for battery control. A battery system needs an inverter on this list to be eligible for the WA Battery Scheme. Other scheme conditions apply.Western Power approval is required for every grid-connected install. Under Emergency Solar Management, a new system must be remotely manageable, or take an export limit instead. Ask your installer to confirm this inverter’s ESM status.

Perth performance

Estimate for a full-size array on this inverter

Daily yield: 21.3 kWh
Annual yield: 7,756 kWh

At 5 peak sun hours a day (BOM) with a 15% system derate.

Australian office

Has local presence

Website

alphaess.au

9 years in Australian market

How it compares

The Alpha ESS SMILE5-INV against the closest-power inverters from other brands.

Specification	Alpha ESS SMILE5-INVAlpha ESS	Energizer FORCE 5.0HSEnergizer	Energizer Force 5.0HT+Energizer

Rated power?	5 kW	5 kW	5 kW
Max efficiency?	Not on file	Not on file	Not on file
MPPT trackers?	Not on file	Not on file	Not on file

Phases	Single-phase	Single-phase	Three-phase
Type	Hybrid	Hybrid	Hybrid
Battery ready	Yes	Yes	Yes
Warranty	5 years	Not on file	Not on file

Specs from the CEC register and datasheet enrichment. Indicative: confirm exact figures with your installer.

Documents

5-year inverter warranty

Alpha ESS SMILE5-INV

The warranty covers defects for 5 years. It excludes voids from non-accredited installations. Claims can be submitted via provided support contact.

AI-summarised from the manufacturer warranty document. Always confirm against the linked PDF before relying on it for a claim.

Coverage shape: Full-replacement coverage
If you sell the home: Does not transfer with the home
What voids it: Non-accredited installation, modification, tampering voids warranty.
Environment limits: Operating Temperature Range -10℃~50℃; extreme temperatures void warranty.

Read the official warranty document (PDF)

Fault & error codes — Alpha ESS SMILE5-INV

From the install manual

10 documented

Showing 10 of 10. The official install manual is the authoritative source — always confirm before acting.

100007criticalCall your installer
Manual (PDF)
Insulation Fault
Likely cause
Moisture may be present in installation environment causing the fault.
What to do
Check the installation environment and improve if necessary; consider contacting support if frequent.
100008criticalCall your installer
Manual (PDF)
GFCI Fault
Likely cause
Could indicate issues with insulation or other faults.
What to do
Check insulation resistance and ensure all connections are secure.
100025criticalCall your installer
Manual (PDF)
Battery Overvoltage
Likely cause
Occurs during initial installation or operational peak.
What to do
Check battery connections and BMS communication.
100027criticalCall your installer
Manual (PDF)
Battery Loose Connection
Likely cause
Improperly secured battery connections.
What to do
Ensure all battery terminals are securely connected.
100061criticalCall your installer
Manual (PDF)
Battery Malfunction
Likely cause
General indicator of battery system issues.
What to do
Contact support for further troubleshooting.
100005warning
Manual (PDF)
BUS Overvoltage 1
Likely cause
The inverter may recover automatically; if persistent, contact customer service.
What to do
Monitor the inverter; if the issue persists, contact support.
100012warning
Manual (PDF)
PV Reverse
Likely cause
Reversed connections on the PV strings.
What to do
Reconnect wires correctly.
100026warningCall your installer
Manual (PDF)
Battery Undervoltage
Likely cause
Check whether the battery voltage is within range.
What to do
Check connections and battery health.
100038warningCall your installer
Manual (PDF)
Output DC Over Current
Likely cause
Short-term grid abnormalities, possible inverter fault if persistent.
What to do
Monitor output conditions; if unresolved, contact support.
110024warningCall your installer
Manual (PDF)
Grid Voltage Alarm
Likely cause
Grid voltage may exceed acceptable range.
What to do
Check grid voltage levels and adjust settings if needed.

More Alpha ESS Co Ltd inverters

SMILE-B5 (AS4777-2 2020)

5 kW · 1φ

SMILE-B5 II (AS4777-2 2020)

5 kW · 1φ

SMILE-B5 III (AS4777-2 2020)

5 kW · 1φ

SMILE-B5 IV (AS4777-2 2020)

5 kW · 1φ

SMILE-B5 V (AS4777-2 2020)

5 kW · 1φ

SMILE-B5 VI (AS4777-2 2020)

5 kW · 1φ

View all Alpha ESS Co Ltd inverters

More from Alpha ESS

Other CEC-approved products from Alpha ESS available in Australia.

Alpha ESS Batteries

M38314-108SNW

97.61 kWh · LFP

M38314-120SNW

108.45 kWh · LFP

M38314-132SNW

119.3 kWh · LFP

M38314-144SNW

130.14 kWh · LFP

M38314-156SNW

140.99 kWh · LFP

M38314-168SNW

151.83 kWh · LFP

View all Alpha ESS batteries

View full Alpha ESS manufacturer profile

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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.

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Hybrid inverter · Alpha ESS · CEC approved December 2025

Alpha ESS SMILE5-INV

CEC listing: SMILE5-INV (AS4777-2 2020)

A 5 kW single-phase hybrid inverter that is battery-ready and on Synergy's approved inverter list.

On Synergy's approved inverter list: YesSynergy's Supported Solutions List covers inverters approved for battery control. A battery system needs an inverter on this list to be eligible for the WA Battery Scheme. Other scheme conditions apply.
Rated power: 5kWHow much solar it can run at once
Battery-ready: YesHybrid: a battery plugs straight in, no second box

Datasheet (PDF)

SMILE5-INV: the short answer

Feed-in credits (DEBS)DEBS pays for exports only when the inverter is 5 kW or less: YesDEBS pays for exports only when the inverter is 5 kW or less
On Synergy's approved inverter listMatched to this exact model. Other scheme conditions apply: YesMatched to this exact model. Other scheme conditions apply

What we can tell you

Read from the figures on this page. No review written yet.

It is a hybrid inverter: solar and a battery run from the one unit, so adding a battery later doesn't need a second box.
It runs on a standard single-phase supply.
On Synergy's approved inverter list. Synergy's Supported Solutions List covers inverters approved for battery control. A battery system needs an inverter on this list to be eligible for the WA Battery Scheme. Other scheme conditions apply.
It is CEC-approved, which a new install needs to qualify for STCs.

Key specs, in plain terms

The numbers that matter for a home. The full datasheet is below.

Rated power: 5kW; How much solar it can turn into usable power at once
Max efficiency: Not on file: we don't have this figure from the manufacturer's documents yet; How much of the solar you make reaches the house
Phases: Single; Runs on a standard single-phase supply
Type: Hybrid; Runs solar and a battery from one unit
Warranty: 5yr; How long Alpha ESS Co Ltd stands behind it

Full datasheet

Every figure on file for the Alpha ESS SMILE5-INV, by section.

Full datasheet, by section
Specification	Value
Rebate eligibility
On Synergy's approved inverter list	Yes
Installation requirements
Top clearance	200 mm
Side clearance	150 mm
AC breaker	40 A
Cable gauge	6 mm²
Earthing method	TN-S
DNSP pre-approval	Yes
Estimated install time	5 hrs

Parsed from the manufacturer datasheet, install manual, and warranty document. Confirm against the linked PDFs before relying on a value for a quote or installation.

Features and CEC approval

Battery compatible: Yes
Backup capable: Yes
CEC approved: 22 Dec 2025
Approval expiry: 3 Nov 2027
Status: Active
Listed for STCs: Yes

About Alpha ESS

Years in the Australian market: 9 years
Australian office: Yes
Category: Mid-Tier
CEC-approved inverters: 43
CEC-approved batteries: 76

View full profile →

Explore your options

Compare quotes from installers you choose

WA compliance

On Synergy's approved inverter list: Yes
ESM compliant: Check

Perth performance

Estimate for a full-size array on this inverter

Daily yield: 21.3 kWh
Annual yield: 7,756 kWh

At 5 peak sun hours a day (BOM) with a 15% system derate.

Australian office

Has local presence

Website

alphaess.au

9 years in Australian market

How it compares

The Alpha ESS SMILE5-INV against the closest-power inverters from other brands.

Specification	Alpha ESS SMILE5-INVAlpha ESS	Energizer FORCE 5.0HSEnergizer	Energizer Force 5.0HT+Energizer

Rated power?	5 kW	5 kW	5 kW
Max efficiency?	Not on file	Not on file	Not on file
MPPT trackers?	Not on file	Not on file	Not on file

Phases	Single-phase	Single-phase	Three-phase
Type	Hybrid	Hybrid	Hybrid
Battery ready	Yes	Yes	Yes
Warranty	5 years	Not on file	Not on file

Specs from the CEC register and datasheet enrichment. Indicative: confirm exact figures with your installer.

Documents

5-year inverter warranty

Alpha ESS SMILE5-INV

The warranty covers defects for 5 years. It excludes voids from non-accredited installations. Claims can be submitted via provided support contact.

AI-summarised from the manufacturer warranty document. Always confirm against the linked PDF before relying on it for a claim.

Coverage shape: Full-replacement coverage
If you sell the home: Does not transfer with the home
What voids it: Non-accredited installation, modification, tampering voids warranty.
Environment limits: Operating Temperature Range -10℃~50℃; extreme temperatures void warranty.

Read the official warranty document (PDF)

Fault & error codes — Alpha ESS SMILE5-INV

From the install manual

10 documented

Showing 10 of 10. The official install manual is the authoritative source — always confirm before acting.

100007criticalCall your installer
Manual (PDF)
Insulation Fault
Likely cause
Moisture may be present in installation environment causing the fault.
What to do
Check the installation environment and improve if necessary; consider contacting support if frequent.
100008criticalCall your installer
Manual (PDF)
GFCI Fault
Likely cause
Could indicate issues with insulation or other faults.
What to do
Check insulation resistance and ensure all connections are secure.
100025criticalCall your installer
Manual (PDF)
Battery Overvoltage
Likely cause
Occurs during initial installation or operational peak.
What to do
Check battery connections and BMS communication.
100027criticalCall your installer
Manual (PDF)
Battery Loose Connection
Likely cause
Improperly secured battery connections.
What to do
Ensure all battery terminals are securely connected.
100061criticalCall your installer
Manual (PDF)
Battery Malfunction
Likely cause
General indicator of battery system issues.
What to do
Contact support for further troubleshooting.
100005warning
Manual (PDF)
BUS Overvoltage 1
Likely cause
The inverter may recover automatically; if persistent, contact customer service.
What to do
Monitor the inverter; if the issue persists, contact support.
100012warning
Manual (PDF)
PV Reverse
Likely cause
Reversed connections on the PV strings.
What to do
Reconnect wires correctly.
100026warningCall your installer
Manual (PDF)
Battery Undervoltage
Likely cause
Check whether the battery voltage is within range.
What to do
Check connections and battery health.
100038warningCall your installer
Manual (PDF)
Output DC Over Current
Likely cause
Short-term grid abnormalities, possible inverter fault if persistent.
What to do
Monitor output conditions; if unresolved, contact support.
110024warningCall your installer
Manual (PDF)
Grid Voltage Alarm
Likely cause
Grid voltage may exceed acceptable range.
What to do
Check grid voltage levels and adjust settings if needed.

More Alpha ESS Co Ltd inverters

SMILE-B5 (AS4777-2 2020)

5 kW · 1φ

SMILE-B5 II (AS4777-2 2020)

5 kW · 1φ

SMILE-B5 III (AS4777-2 2020)

5 kW · 1φ

SMILE-B5 IV (AS4777-2 2020)

5 kW · 1φ

SMILE-B5 V (AS4777-2 2020)

5 kW · 1φ

SMILE-B5 VI (AS4777-2 2020)

5 kW · 1φ

View all Alpha ESS Co Ltd inverters