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Home battery · Alpha ESS · SMILE-BAT series · CEC approved July 2026

Alpha ESS SMILE-BAT-15P

A 15.07 kWh home battery.

Installed in Perth, after rebates: ~$12,250Estimate, price notes for an Alpha ESS SMILE battery this size, Feb 2026
WA Battery Scheme rebate: −$1,300With a Synergy-approved inverter and VPP enrolment
Usable capacity: 15.07kWhBetween the smaller home and medium home bands
Warranty: 10yrs

Datasheet (PDF)

SMILE-BAT-15P: the short answer

In the SMILE-BAT seriesOne of 6 sizes, from 13.99 to 45.21 kWh: 15.07kWhOne of 6 sizes, from 13.99 to 45.21 kWh
WA Battery Scheme$1,300 with a Synergy-approved inverter and VPP enrolment: Likely eligible$1,300 with a Synergy-approved inverter and VPP enrolment
Works withFrom the manufacturer's documentation; the CEC register doesn't list pairings: Alpha ESS SMILEFrom the manufacturer's documentation; the CEC register doesn't list pairings
Continuous powerRuns most of a home, but not everything at full tilt: 5kWRuns most of a home, but not everything at full tilt

Other sizes in the SMILE-BAT series

What we can tell you

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

15.07 kWh sits between the smaller home (10 to 15 kWh) and medium home (20 to 30 kWh) bands.
It is CEC-approved, which is a condition of both the federal STC discount and the WA Battery Scheme.

Key specs, in plain terms

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

Usable capacity: 15.07kWh; How much energy it stores for you to use
Continuous power: 5kW; How much it can run at once: most of a home, but not everything at full tilt
Round-trip efficiency: 97%; How much of the energy you store comes back out
Warranty: 10yr; 70% of capacity guaranteed at the end of it
Battery chemistry: LFP; Lithium iron phosphate, the long-cycle-life type
Size and weight: 30kg; 210 × 610 × 627 mm, roughly a large suitcase on the wall

Warranty and support

The warranty covers defects for 10 years. It excludes damages from improper installation or modifications. Contact Alpha ESS support to make a claim.

Product: 10 years; transferable; full replacement
At year 10: At least 70% of capacity
Throughput: 3.12 MWh
Installation: Must be installed by an SAA-accredited installer
Support: Australian officeAlpha ESS Australia; 9 years in the Australian market. Chinese manufacturer with Australian subsidiary.
Perth heat: Rated to 50°C, which covers Perth's hottest days.

Warranty document Datasheet Compare warranties

WA Battery Scheme eligibility

Likely eligible

Synergy SSL inverter pairing, VPP participation and state-rebate qualification for this battery. Rebate and STC amounts are shown in the pricing panel.

CSIP-AUS compliant: On the Synergy Supported Solutions List (SSL) for remote management.
Synergy SSL approved inverter: Pairs with Alpha ESS SMILE.
VPP activation ready: Ready for Synergy VPP participation.
WA Battery Scheme rebate: Up to $1,300 for Synergy customers (10kWh max eligible).
Synergy Battery Rewards: Earns credits during VPP activation events (up to 30/year).
Interest-free loan: Qualifies for up to $10,000 interest-free.

Under current WA rules, new rebate applications require VPP enrolment and CSIP-AUS compliance. How the scheme works · Estimate VPP earnings

Full datasheet

Every figure on file for the Alpha ESS SMILE-BAT, by section.

Cell & chemistry

Chemistry: LFP

Capacity & power

Continuous power: 5 kW
Round-trip efficiency: 96.5%

Lifespan & degradation

Capacity retained at year 10: 70%
Warranted throughput: 3.12 MWh

Physical

Dimensions (H×W×D): 210 × 610 × 627 mm
Weight: 30 kg

Operating environment

Operating temperature: -10°C to 50°C

Installation requirements

Top clearance: 200 mm
Side clearance: 150 mm
Front clearance: 150 mm
AC breaker: 40 A
Cable gauge: 6 mm²
Earthing method: TN-S
DNSP pre-approval: No
Estimated install time: 8 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.

Documents

Fault & error codes — Alpha ESS SMILE-BAT

Extracted from the installation manual

44 documented

Showing 44 of 44. The official install manual is the authoritative source — always confirm before acting.

100007criticalCall your installer
Manual (PDF)
Insulation_fault
Likely cause
Check for wet installation environment, as frequent alarms might occur due to rain. Check all solar panel strings if the alarm persists.
What to do
Improve the installation environment if necessary and inspect installation for proper conditions; contact customer service for persistent issues.
100025criticalCall your installer
Manual (PDF)
BAT_OVP
Likely cause
Battery voltage may exceed allowable range during initial installation or operation.
What to do
Check wiring and BMS communication; detach any issues found.
100027criticalCall your installer
Manual (PDF)
Battery_lose
Likely cause
Check wiring connection, DC Switch, and BMS communication.
What to do
Inspect and rectify any evident issues.
100042criticalCall your installer
Manual (PDF)
Output_short
Likely cause
Disconnect backup load to check for a short.
What to do
Untangle any shorts or contact customer service if fault cannot be cleared.
100043criticalCall your installer
Manual (PDF)
Output_overload
Likely cause
Relay for backup load may exceed limits; check loading.
What to do
Reduce load or consult customer service if too pragmatic.
100060criticalCall your installer
Manual (PDF)
Dsp_selfcheck
Likely cause
Contact customer service for internal procedure errors.
What to do
Immediate consultation warranted for repair.
100123criticalCall your installer
Manual (PDF)
DSP_communication_failure
Likely cause
Check for successful communication reestablishment after remote upgrades.
What to do
Contact customer service for continuous issues.
100166criticalCall your installer
Manual (PDF)
inverter_circuit_abnormal
Likely cause
Contact support necessary for circuit problems.
What to do
Repair requires immediate contact for further troubleshooting.
100167criticalCall your installer
Manual (PDF)
boost_circuit_abnormal
Likely cause
Suggest reaching out for restoration checks with support.
What to do
Immediate customer service for assistance is warranted.
110005criticalCall your installer
Manual (PDF)
Battery_stops_running_alarm
Likely cause
Immediate maintenance required if this occurs.
What to do
Consult customer support for troubleshooting.
110014criticalCall your installer
Manual (PDF)
Pv_over_voltage
Likely cause
Confirm open circuit voltage in abnormal weather cases.
What to do
Modification of configurations should be reviewed as needed.
110034criticalCall your installer
Manual (PDF)
Fan_Abnormal_Alarm
Likely cause
Investigate coping ventilation channels for best action towards support.
What to do
Report extensively for localized fan irregularities to service.
110039criticalCall your installer
Manual (PDF)
Machine_Type_Alarm
Likely cause
Immediate evaluation and informative connection with service is necessitated for checks.
What to do
Reach out to service support on discrepancy detections.
110050criticalCall your installer
Manual (PDF)
Output_Power_Limit_Alarm
Likely cause
Consult service providers for resolution on interactions that are affecting outputs.
What to do
Communicating needs concerning continuous supporting issues is needed.
100005warningCall your installer
Manual (PDF)
BUS_OVP1
Likely cause
If it happens occasionally, the inverter can recover automatically, no processing is required.
What to do
Please contact the customer service center for further check if it persists.
100008warningCall your installer
Manual (PDF)
GFCI_fault
Likely cause
If accompanied by an insulation resistance alarm, follow the insulation alarm's instructions. Can be a fault if the inverter struggles to connect to the grid.
What to do
Check installation; if issue persists, contact customer service for further assistance.
100010warningCall your installer
Manual (PDF)
Grid_relay_fault
Likely cause
Short-term grid anomalies may cause this. If frequent, check grid voltage high alarm guidance.
What to do
Contact customer service if the issue continues.
100026warningCall your installer
Manual (PDF)
BAT_UVP
Likely cause
Check battery voltage and that switches are closed during installations and operations.
What to do
Examine circuit breakers and ensure all connections are secure.
100030warning
Manual (PDF)
BAT1_discharge_OCP
Likely cause
Battery over-discharged, decrease backup load and restart inverter after 5 minutes.
What to do
Reduce load and reset the inverter.
100038warningCall your installer
Manual (PDF)
Output_DC_over_current
Likely cause
Short-term power grid abnormalities may trigger this.
What to do
Contact customer service if the issue persists.
100058warningCall your installer
Manual (PDF)
AFCI_check_protect
Likely cause
Restart the system to verify if error persists.
What to do
Contact support for step failures.
110006warningCall your installer
Manual (PDF)
over_temperature_alarm
Likely cause
Please verify whether installation subject to sunlight or heating.
What to do
Contact support for persistent alarm.
110023warningCall your installer
Manual (PDF)
Grid_Freq_Alarm
Likely cause
Regular occurrences need verification by service for setup adjustments.
What to do
Report processes of restoration situations promptly to support.
110048warningCall your installer
Manual (PDF)
No_Pv_Input_Alarm
Likely cause
Limited abnormal conditions drawn from selections may hint at high risk.
What to do
Engage customer support for installation evaluations on segments.
100012info
Manual (PDF)
PV_Reverse
Likely cause
Cables of PV strings might be reversed.
What to do
Reconnect the cables correctly.
100041infoCall your installer
Manual (PDF)
Output_DC_over_voltage
Likely cause
Temporary grid issues may cause this alarm.
What to do
Reach out to customer service for ongoing issues.
100046infoCall your installer
Manual (PDF)
DC_Input_Disturbance
Likely cause
Usually self-recovery occurs for brief disturbances.
What to do
Check with customer service if the situation frequently arises.
100052infoCall your installer
Manual (PDF)
Backup_ovp
Likely cause
Self-recovery suggests brief issues, notify for any consistent repetition.
What to do
Consult customer service if issues persist.
100054infoCall your installer
Manual (PDF)
Dc_bus_undervolt
Likely cause
Typically self-resolving, observe condition.
What to do
Reach out to customer service if recurring.
100122infoCall your installer
Manual (PDF)
EEPROM_RW_Failure
Likely cause
Typically follows a remote upgrade, if regular state resumes no work needed.
What to do
Seek customer service for ongoing failures.
100145infoCall your installer
Manual (PDF)
12V_auxiliary_power_Fault
Likely cause
Self-resolution for occasional issues; notify more frequent occurrences.
What to do
Reach out to support if recurring.
100165infoCall your installer
Manual (PDF)
data_storage_error
Likely cause
Check if seldom occurring; if frequently, notify support.
What to do
Engage support for help if issues persist.
110004infoCall your installer
Manual (PDF)
dc_power_alarm
Likely cause
Confirm setting high voltage alarm if interrupts occur.
What to do
Consult customer service for additional guidance.
110021infoCall your installer
Manual (PDF)
Grid_Loss_Alarm
Likely cause
Short-term grid issues often self-resolve without actions.
What to do
Report issues if they cause outages persistently.
110022infoCall your installer
Manual (PDF)
Grid_Volt_Alarm
Likely cause
Examine grid abnormalities and configurations if this continues.
What to do
Check all conditions and notify support if unsure.
110024infoCall your installer
Manual (PDF)
10min_Grid_Volt_Alarm
Likely cause
Monitor grid voltage settings to confirm valid protection.
What to do
Reach out for parameters confirmation if issues arise;
110027infoCall your installer
Manual (PDF)
LN_Reverse_Alarm
Likely cause
Double-check live and neutral wire connections if this persists.
What to do
Consult support for further verification if setups persist on incorrect configurations.
110029infoCall your installer
Manual (PDF)
GFCI_Alarm
Likely cause
Regular checking on alert and correct overall verification needed.
What to do
Engage support promptly for reevaluation of service conditions.
110030infoCall your installer
Manual (PDF)
ISO_Alarm
Likely cause
Cycles of persistence should be verified; reach support for checks.
What to do
Assess directly with service for ongoing operating commands.
110036infoCall your installer
Manual (PDF)
FLASH_ID_Alarm
Likely cause
Restart interactions with support targeted directly and solve persisting issues.
What to do
Constant reporting for support leading upcoming results is needed.
110037infoCall your installer
Manual (PDF)
ReadFlash_Alarm
Likely cause
System checks with functioning require quick connect with support.
What to do
Reports on starting implementations for troubleshooting are advised.
110040infoCall your installer
Manual (PDF)
Inv_Volt_Low_Alarm
Likely cause
Confirm voltage settings with customer service when light levels aggregate usual range.
What to do
Direct talk with support for any anomaly found in collective system interruptions.
110049infoCall your installer
Manual (PDF)
Input_Power_Limit_Alarm
Likely cause
Normal protocol for-limited light; if anomalies developed, notify support.
What to do
Direct action sought and quick resolution measures for verification needed.
110059infoCall your installer
Manual (PDF)
grid_waveform_abnormal_alarm
Likely cause
Preliminary alarms occasionally so trigger normal operation on confirmations.
What to do
Constant conversations to confirm local authority measurements are necessary;

About Alpha ESS

Years in the Australian market: 9+ (CEC-approved products since 2017)
Local support: Not verified
CEC-listed products: 76 models

View full profile →

What it costs in Perth

$17,500

Estimated installed price, before rebates

Estimateprice notes for an Alpha ESS SMILE battery this sizeFeb 2026

WA Battery Scheme: −$1,300
Federal STCs: −$3,950
You’d pay about: $12,250

The WA Battery Scheme pays $1,300 on this size when it is installed with a Synergy-approved inverter and enrolled in a VPP. STCs assume about $39.9 a certificate. Estimated installed price from price notes for an Alpha ESS SMILE battery this size, February 2026. Installer quotes vary.

Explore your options

Which size band is your home?

Usable capacity, for one battery system

Smaller home: 10 to 15 kWh
Medium home: 20 to 30 kWh
Big home: 30 to 40 kWh
Very big home: 40+ kWh

This battery sits between the smaller home and medium home bands. The WA rebate caps at 10 kWh, but that is a rebate limit, not a sizing guide.

Does waiting change the rebate?

Estimated federal rebate (STCs) for this 15.07 kWh battery

How it compares

The Alpha ESS SMILE-BAT-15P against the closest-sized batteries from other brands.

Specification	Alpha ESS SMILE-BAT-15PAlpha ESS	Solplanet APL15.0-SSolplanet	KSTAR BP48100PF1A-G2-3PKSTAR

Usable capacity?	15.07 kWhbest value	15.07 kWhbest value	15.05 kWh
Continuous power?	5 kW	Not verified	Not verified
Peak power?	Not verified	Not verified	Not verified

Round-trip efficiency?	97%	Not verified	Not verified
Warranty	10 years	Not verified	Not verified
Chemistry	LFP	LFP	LFP

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

More from Alpha ESS

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

Alpha ESS Inverters

M30-INV-AU

30 kW · 3φ

M50-INV-AU

50 kW · 3φ

SMILE-B3-PLUS

3 kW

SMILE-B3-PLUS II

3 kW

SMILE-B3-PLUS III

3 kW

SMILE-B3-PLUS IV

3 kW

View all Alpha ESS inverters

View full Alpha ESS manufacturer profile

Want to take the next step?

Get a quote from an installer from our network that covers your area. You choose whether to act on it. No obligation.

This model is one entry in the desk's index of solar batteries for Perth: every CEC-approved battery on one comparable dataset.

Product Information Disclaimer:

Product specifications, pricing, and availability are subject to change without notice. We make no warranties regarding product performance, longevity, or suitability for your specific needs.

Always verify specifications with the manufacturer and installer before purchase. Warranty terms are set by manufacturers and may have conditions not disclosed here. Battery performance degrades over time.

Explore your options Compare batteries

Spotted something outdated?

Home battery · Alpha ESS · SMILE-BAT series · CEC approved July 2026

Alpha ESS SMILE-BAT-15P

A 15.07 kWh home battery.

Installed in Perth, after rebates: ~$12,250Estimate, price notes for an Alpha ESS SMILE battery this size, Feb 2026
WA Battery Scheme rebate: −$1,300With a Synergy-approved inverter and VPP enrolment
Usable capacity: 15.07kWhBetween the smaller home and medium home bands
Warranty: 10yrs

Datasheet (PDF)

SMILE-BAT-15P: the short answer

In the SMILE-BAT seriesOne of 6 sizes, from 13.99 to 45.21 kWh: 15.07kWhOne of 6 sizes, from 13.99 to 45.21 kWh
WA Battery Scheme$1,300 with a Synergy-approved inverter and VPP enrolment: Likely eligible$1,300 with a Synergy-approved inverter and VPP enrolment
Works withFrom the manufacturer's documentation; the CEC register doesn't list pairings: Alpha ESS SMILEFrom the manufacturer's documentation; the CEC register doesn't list pairings
Continuous powerRuns most of a home, but not everything at full tilt: 5kWRuns most of a home, but not everything at full tilt

Other sizes in the SMILE-BAT series

What we can tell you

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

15.07 kWh sits between the smaller home (10 to 15 kWh) and medium home (20 to 30 kWh) bands.
It is CEC-approved, which is a condition of both the federal STC discount and the WA Battery Scheme.

Key specs, in plain terms

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

Usable capacity: 15.07kWh; How much energy it stores for you to use
Continuous power: 5kW; How much it can run at once: most of a home, but not everything at full tilt
Round-trip efficiency: 97%; How much of the energy you store comes back out
Warranty: 10yr; 70% of capacity guaranteed at the end of it
Battery chemistry: LFP; Lithium iron phosphate, the long-cycle-life type
Size and weight: 30kg; 210 × 610 × 627 mm, roughly a large suitcase on the wall

Warranty and support

The warranty covers defects for 10 years. It excludes damages from improper installation or modifications. Contact Alpha ESS support to make a claim.

Product: 10 years; transferable; full replacement
At year 10: At least 70% of capacity
Throughput: 3.12 MWh
Installation: Must be installed by an SAA-accredited installer
Support: Australian officeAlpha ESS Australia; 9 years in the Australian market. Chinese manufacturer with Australian subsidiary.
Perth heat: Rated to 50°C, which covers Perth's hottest days.

Warranty document Datasheet Compare warranties

WA Battery Scheme eligibility

Likely eligible

Synergy SSL inverter pairing, VPP participation and state-rebate qualification for this battery. Rebate and STC amounts are shown in the pricing panel.

CSIP-AUS compliant: On the Synergy Supported Solutions List (SSL) for remote management.
Synergy SSL approved inverter: Pairs with Alpha ESS SMILE.
VPP activation ready: Ready for Synergy VPP participation.
WA Battery Scheme rebate: Up to $1,300 for Synergy customers (10kWh max eligible).
Synergy Battery Rewards: Earns credits during VPP activation events (up to 30/year).
Interest-free loan: Qualifies for up to $10,000 interest-free.

Under current WA rules, new rebate applications require VPP enrolment and CSIP-AUS compliance. How the scheme works · Estimate VPP earnings

Full datasheet

Every figure on file for the Alpha ESS SMILE-BAT, by section.

Cell & chemistry

Chemistry: LFP

Capacity & power

Continuous power: 5 kW
Round-trip efficiency: 96.5%

Lifespan & degradation

Capacity retained at year 10: 70%
Warranted throughput: 3.12 MWh

Physical

Dimensions (H×W×D): 210 × 610 × 627 mm
Weight: 30 kg

Operating environment

Operating temperature: -10°C to 50°C

Installation requirements

Top clearance: 200 mm
Side clearance: 150 mm
Front clearance: 150 mm
AC breaker: 40 A
Cable gauge: 6 mm²
Earthing method: TN-S
DNSP pre-approval: No
Estimated install time: 8 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.

Documents

Fault & error codes — Alpha ESS SMILE-BAT

Extracted from the installation manual

44 documented

Showing 44 of 44. The official install manual is the authoritative source — always confirm before acting.

100007criticalCall your installer
Manual (PDF)
Insulation_fault
Likely cause
Check for wet installation environment, as frequent alarms might occur due to rain. Check all solar panel strings if the alarm persists.
What to do
Improve the installation environment if necessary and inspect installation for proper conditions; contact customer service for persistent issues.
100025criticalCall your installer
Manual (PDF)
BAT_OVP
Likely cause
Battery voltage may exceed allowable range during initial installation or operation.
What to do
Check wiring and BMS communication; detach any issues found.
100027criticalCall your installer
Manual (PDF)
Battery_lose
Likely cause
Check wiring connection, DC Switch, and BMS communication.
What to do
Inspect and rectify any evident issues.
100042criticalCall your installer
Manual (PDF)
Output_short
Likely cause
Disconnect backup load to check for a short.
What to do
Untangle any shorts or contact customer service if fault cannot be cleared.
100043criticalCall your installer
Manual (PDF)
Output_overload
Likely cause
Relay for backup load may exceed limits; check loading.
What to do
Reduce load or consult customer service if too pragmatic.
100060criticalCall your installer
Manual (PDF)
Dsp_selfcheck
Likely cause
Contact customer service for internal procedure errors.
What to do
Immediate consultation warranted for repair.
100123criticalCall your installer
Manual (PDF)
DSP_communication_failure
Likely cause
Check for successful communication reestablishment after remote upgrades.
What to do
Contact customer service for continuous issues.
100166criticalCall your installer
Manual (PDF)
inverter_circuit_abnormal
Likely cause
Contact support necessary for circuit problems.
What to do
Repair requires immediate contact for further troubleshooting.
100167criticalCall your installer
Manual (PDF)
boost_circuit_abnormal
Likely cause
Suggest reaching out for restoration checks with support.
What to do
Immediate customer service for assistance is warranted.
110005criticalCall your installer
Manual (PDF)
Battery_stops_running_alarm
Likely cause
Immediate maintenance required if this occurs.
What to do
Consult customer support for troubleshooting.
110014criticalCall your installer
Manual (PDF)
Pv_over_voltage
Likely cause
Confirm open circuit voltage in abnormal weather cases.
What to do
Modification of configurations should be reviewed as needed.
110034criticalCall your installer
Manual (PDF)
Fan_Abnormal_Alarm
Likely cause
Investigate coping ventilation channels for best action towards support.
What to do
Report extensively for localized fan irregularities to service.
110039criticalCall your installer
Manual (PDF)
Machine_Type_Alarm
Likely cause
Immediate evaluation and informative connection with service is necessitated for checks.
What to do
Reach out to service support on discrepancy detections.
110050criticalCall your installer
Manual (PDF)
Output_Power_Limit_Alarm
Likely cause
Consult service providers for resolution on interactions that are affecting outputs.
What to do
Communicating needs concerning continuous supporting issues is needed.
100005warningCall your installer
Manual (PDF)
BUS_OVP1
Likely cause
If it happens occasionally, the inverter can recover automatically, no processing is required.
What to do
Please contact the customer service center for further check if it persists.
100008warningCall your installer
Manual (PDF)
GFCI_fault
Likely cause
If accompanied by an insulation resistance alarm, follow the insulation alarm's instructions. Can be a fault if the inverter struggles to connect to the grid.
What to do
Check installation; if issue persists, contact customer service for further assistance.
100010warningCall your installer
Manual (PDF)
Grid_relay_fault
Likely cause
Short-term grid anomalies may cause this. If frequent, check grid voltage high alarm guidance.
What to do
Contact customer service if the issue continues.
100026warningCall your installer
Manual (PDF)
BAT_UVP
Likely cause
Check battery voltage and that switches are closed during installations and operations.
What to do
Examine circuit breakers and ensure all connections are secure.
100030warning
Manual (PDF)
BAT1_discharge_OCP
Likely cause
Battery over-discharged, decrease backup load and restart inverter after 5 minutes.
What to do
Reduce load and reset the inverter.
100038warningCall your installer
Manual (PDF)
Output_DC_over_current
Likely cause
Short-term power grid abnormalities may trigger this.
What to do
Contact customer service if the issue persists.
100058warningCall your installer
Manual (PDF)
AFCI_check_protect
Likely cause
Restart the system to verify if error persists.
What to do
Contact support for step failures.
110006warningCall your installer
Manual (PDF)
over_temperature_alarm
Likely cause
Please verify whether installation subject to sunlight or heating.
What to do
Contact support for persistent alarm.
110023warningCall your installer
Manual (PDF)
Grid_Freq_Alarm
Likely cause
Regular occurrences need verification by service for setup adjustments.
What to do
Report processes of restoration situations promptly to support.
110048warningCall your installer
Manual (PDF)
No_Pv_Input_Alarm
Likely cause
Limited abnormal conditions drawn from selections may hint at high risk.
What to do
Engage customer support for installation evaluations on segments.
100012info
Manual (PDF)
PV_Reverse
Likely cause
Cables of PV strings might be reversed.
What to do
Reconnect the cables correctly.
100041infoCall your installer
Manual (PDF)
Output_DC_over_voltage
Likely cause
Temporary grid issues may cause this alarm.
What to do
Reach out to customer service for ongoing issues.
100046infoCall your installer
Manual (PDF)
DC_Input_Disturbance
Likely cause
Usually self-recovery occurs for brief disturbances.
What to do
Check with customer service if the situation frequently arises.
100052infoCall your installer
Manual (PDF)
Backup_ovp
Likely cause
Self-recovery suggests brief issues, notify for any consistent repetition.
What to do
Consult customer service if issues persist.
100054infoCall your installer
Manual (PDF)
Dc_bus_undervolt
Likely cause
Typically self-resolving, observe condition.
What to do
Reach out to customer service if recurring.
100122infoCall your installer
Manual (PDF)
EEPROM_RW_Failure
Likely cause
Typically follows a remote upgrade, if regular state resumes no work needed.
What to do
Seek customer service for ongoing failures.
100145infoCall your installer
Manual (PDF)
12V_auxiliary_power_Fault
Likely cause
Self-resolution for occasional issues; notify more frequent occurrences.
What to do
Reach out to support if recurring.
100165infoCall your installer
Manual (PDF)
data_storage_error
Likely cause
Check if seldom occurring; if frequently, notify support.
What to do
Engage support for help if issues persist.
110004infoCall your installer
Manual (PDF)
dc_power_alarm
Likely cause
Confirm setting high voltage alarm if interrupts occur.
What to do
Consult customer service for additional guidance.
110021infoCall your installer
Manual (PDF)
Grid_Loss_Alarm
Likely cause
Short-term grid issues often self-resolve without actions.
What to do
Report issues if they cause outages persistently.
110022infoCall your installer
Manual (PDF)
Grid_Volt_Alarm
Likely cause
Examine grid abnormalities and configurations if this continues.
What to do
Check all conditions and notify support if unsure.
110024infoCall your installer
Manual (PDF)
10min_Grid_Volt_Alarm
Likely cause
Monitor grid voltage settings to confirm valid protection.
What to do
Reach out for parameters confirmation if issues arise;
110027infoCall your installer
Manual (PDF)
LN_Reverse_Alarm
Likely cause
Double-check live and neutral wire connections if this persists.
What to do
Consult support for further verification if setups persist on incorrect configurations.
110029infoCall your installer
Manual (PDF)
GFCI_Alarm
Likely cause
Regular checking on alert and correct overall verification needed.
What to do
Engage support promptly for reevaluation of service conditions.
110030infoCall your installer
Manual (PDF)
ISO_Alarm
Likely cause
Cycles of persistence should be verified; reach support for checks.
What to do
Assess directly with service for ongoing operating commands.
110036infoCall your installer
Manual (PDF)
FLASH_ID_Alarm
Likely cause
Restart interactions with support targeted directly and solve persisting issues.
What to do
Constant reporting for support leading upcoming results is needed.
110037infoCall your installer
Manual (PDF)
ReadFlash_Alarm
Likely cause
System checks with functioning require quick connect with support.
What to do
Reports on starting implementations for troubleshooting are advised.
110040infoCall your installer
Manual (PDF)
Inv_Volt_Low_Alarm
Likely cause
Confirm voltage settings with customer service when light levels aggregate usual range.
What to do
Direct talk with support for any anomaly found in collective system interruptions.
110049infoCall your installer
Manual (PDF)
Input_Power_Limit_Alarm
Likely cause
Normal protocol for-limited light; if anomalies developed, notify support.
What to do
Direct action sought and quick resolution measures for verification needed.
110059infoCall your installer
Manual (PDF)
grid_waveform_abnormal_alarm
Likely cause
Preliminary alarms occasionally so trigger normal operation on confirmations.
What to do
Constant conversations to confirm local authority measurements are necessary;

About Alpha ESS

Years in the Australian market: 9+ (CEC-approved products since 2017)
Local support: Not verified
CEC-listed products: 76 models

View full profile →

What it costs in Perth

$17,500

Estimated installed price, before rebates

Estimateprice notes for an Alpha ESS SMILE battery this sizeFeb 2026

WA Battery Scheme: −$1,300
Federal STCs: −$3,950
You’d pay about: $12,250

Explore your options

Which size band is your home?

Usable capacity, for one battery system

Smaller home: 10 to 15 kWh
Medium home: 20 to 30 kWh
Big home: 30 to 40 kWh
Very big home: 40+ kWh

This battery sits between the smaller home and medium home bands. The WA rebate caps at 10 kWh, but that is a rebate limit, not a sizing guide.

Does waiting change the rebate?

Estimated federal rebate (STCs) for this 15.07 kWh battery

How it compares

The Alpha ESS SMILE-BAT-15P against the closest-sized batteries from other brands.

Specification	Alpha ESS SMILE-BAT-15PAlpha ESS	Solplanet APL15.0-SSolplanet	KSTAR BP48100PF1A-G2-3PKSTAR

Usable capacity?	15.07 kWhbest value	15.07 kWhbest value	15.05 kWh
Continuous power?	5 kW	Not verified	Not verified
Peak power?	Not verified	Not verified	Not verified

Round-trip efficiency?	97%	Not verified	Not verified
Warranty	10 years	Not verified	Not verified
Chemistry	LFP	LFP	LFP

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