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Battery inverter · SMA · SUNNY ISLAND X series · CEC approved October 2025

SMA SI30-20

CEC listing: SI30-20 (AS4777-2 2020)

A 30 kW three-phase battery inverter.

Installed in Perth, typical: ~$12,750; Estimate for the inverter alone — your quote will vary
Rated power: 30kW; How much solar it can run at once — a large roof
Battery-ready: Yes; Battery inverter: it runs the battery, alongside your solar inverter

Datasheet (PDF)Compare inverters See the whole SUNNY ISLAND X series

Spotted something outdated?

What we can tell you

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

It is a battery inverter: it runs a battery, and pairs with a separate solar inverter.
It needs a three-phase supply — check your switchboard, or ask your installer.
We can't confirm it is on Synergy's approved list — a battery paired with it needs that for the WA Battery Scheme, so ask your installer.
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 How much solar it can turn into usable power at once: 30kW
Phases Needs a three-phase supply — check your switchboard: 3-phase
Type Runs a battery; pairs with a separate solar inverter: Battery
Warranty How long SMA Australia Pty Ltd stands behind it: 5yr

Full datasheet

Every figure on file for the SMA SI30-20, by section.

Full datasheet, by section
Specification	Value
Efficiency
European efficiency	98%
Physical
Weight	104 kg
IP rating	IP65
Operating temperature	-25°C to 60°C

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 & compatibility

Battery compatible

Yes

Backup capable

Yes

CEC approval details

CEC approved

24 Oct 2025

Approval expiry

24 Oct 2028

Status

Active

Eligible for rebates

Yes

About SMA Australia Pty Ltd

Years in AU Market

20 years

Australian Office

Yes

CEC-Approved Batteries

CEC-Approved Panels

What it costs in Perth

Typical installed, inverter only

$9,000–$16,500

Estimate confidence: Medium

Prices vary by installer, configuration and site complexity. Get exact quotes from installers you choose.

Explore your options

Compare quotes from installers you choose

WA compliance

Synergy approved list: Not confirmed
ESM compliant: Check

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.

Australian office

Has local presence

Website

www.sma-australia.com.au

20 years in Australian market

How it compares

The SMA SI30-20 against the closest-power inverters from other brands.

Specification	SMA SI30-20SMA	Afore New Energy Technology AF30K-THAfore New Energy Technology	Alpha ESS M30-INV-AUAlpha ESS

Rated power?	30 kW	30 kW	30 kW
Max efficiency?	0.0%	0.0%	0.0%
MPPT trackers?	Not verified	Not verified	Not verified

Phases	Three-phase	Three-phase	Three-phase
Type	Battery	Hybrid	Hybrid
Battery ready	Yes	Yes	Yes
Warranty	5 years	Not verified	Not verified

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

Documents

5-year inverter warranty

SMA SI30-20

This warranty covers defects in materials and workmanship for five years. Important exclusions include unauthorized modifications and installations.

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

Coverage shape: Pro-rata — value reduces with age
If you sell the home: Transfers to the next homeowner
What voids it: Void if installation is not performed by an accredited professional or if product is modified without prior approval.
Environment limits: None stated

Read the official warranty document (PDF)

Fault & error codes — SMA SI30-20

From the install manual

8 documented

Showing 8 of 8. The official install manual is the authoritative source — always confirm before acting.

3601criticalCall your installer
Manual (PDF)
High leakage current detected
Likely cause
The leakage current of the inverter and battery is too high, leading to a ground fault.
What to do
Check battery and DC cabling for ground faults.
601criticalCall your installer
Manual (PDF)
High proportion of DC in grid current
Likely cause
Excessive direct current detected in grid current.
What to do
Check grid connection for direct current. Frequent occurrence requires contacting the grid operator.
6501criticalCall your installer
Manual (PDF)
Overtemperature - self-diagnosis
Likely cause
The inverter has switched off due to excessive temperature.
What to do
Ensure sufficient ventilation and temperature management/methods are being observed.
9307criticalCall your installer
Manual (PDF)
Defective battery system
Likely cause
A fault in the battery system has been detected.
What to do
Contact the battery manufacturer for support.
301warning
Manual (PDF)
Grid incident - Voltage out of range
Likely cause
The ten-minute average value of the grid voltage is outside the permissible range.
What to do
Check the grid voltage at the connection point. If it's out of range, contact the grid operator.
401warning
Manual (PDF)
Grid incident - Disconnected from utility grid
Likely cause
A stand-alone grid or a significant change in grid frequency was detected.
What to do
Check for power outages or maintenance on the utility grid. Contact the grid operator if necessary.
404warning
Manual (PDF)
Grid incident - Disconnected from utility grid
Likely cause
A stand-alone grid or a significant change in grid frequency was detected.
What to do
Check for power outages or maintenance on the utility grid. Contact the grid operator if necessary.
501warningCall your installer
Manual (PDF)
Grid frequency not permissible
Likely cause
The grid frequency is outside permissible limits.
What to do
Check the grid frequency and report frequent fluctuations to the grid operator to change operating parameters if approved.

Part of the SMA SUNNY ISLAND X series

Compare every SMA SUNNY ISLAND X variant side by side →

More SMA Australia Pty Ltd Inverters

SB1.5-1VL-40 (AS4777-2 2020)

1.5 kW · 1φ

SB2.5-1VL-40 (AS4777-2 2020)

2.5 kW · 1φ

SB3.0-1AV-41 (AS4777-2 2020)

3 kW · 1φ

SB4.0-1AV-41 (AS4777-2 2020)

4 kW · 1φ

SB5.0-1AV-41 (AS4777-2 2020)

5 kW · 1φ

SB6.0-1AV-41 (AS4777-2 2020)

6 kW · 1φ

View all SMA Australia Pty Ltd inverters

More from SMA Australia Pty Ltd

Other CEC-approved products from SMA Australia Pty Ltd available in Australia.

SMA Australia Pty Ltd Batteries

HS-BM-3.28-10

3.28 kWh · LFP

View all SMA Australia Pty Ltd batteries

View full SMA Australia Pty Ltd 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.

Battery inverter · SMA · SUNNY ISLAND X series · CEC approved October 2025

SMA SI30-20

CEC listing: SI30-20 (AS4777-2 2020)

A 30 kW three-phase battery inverter.

Installed in Perth, typical: ~$12,750; Estimate for the inverter alone — your quote will vary
Rated power: 30kW; How much solar it can run at once — a large roof
Battery-ready: Yes; Battery inverter: it runs the battery, alongside your solar inverter

Datasheet (PDF)Compare inverters See the whole SUNNY ISLAND X series

Spotted something outdated?

What we can tell you

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

It is a battery inverter: it runs a battery, and pairs with a separate solar inverter.
It needs a three-phase supply — check your switchboard, or ask your installer.
We can't confirm it is on Synergy's approved list — a battery paired with it needs that for the WA Battery Scheme, so ask your installer.
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 How much solar it can turn into usable power at once: 30kW
Phases Needs a three-phase supply — check your switchboard: 3-phase
Type Runs a battery; pairs with a separate solar inverter: Battery
Warranty How long SMA Australia Pty Ltd stands behind it: 5yr

Full datasheet

Every figure on file for the SMA SI30-20, by section.

Full datasheet, by section
Specification	Value
Efficiency
European efficiency	98%
Physical
Weight	104 kg
IP rating	IP65
Operating temperature	-25°C to 60°C

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 & compatibility

Battery compatible

Yes

Backup capable

Yes

CEC approval details

CEC approved

24 Oct 2025

Approval expiry

24 Oct 2028

Status

Active

Eligible for rebates

Yes

About SMA Australia Pty Ltd

Years in AU Market

20 years

Australian Office

Yes

CEC-Approved Batteries

CEC-Approved Panels

What it costs in Perth

Typical installed, inverter only

$9,000–$16,500

Estimate confidence: Medium

Prices vary by installer, configuration and site complexity. Get exact quotes from installers you choose.

Explore your options

Compare quotes from installers you choose

WA compliance

Synergy approved list: Not confirmed
ESM compliant: Check

Australian office

Has local presence

Website

www.sma-australia.com.au

20 years in Australian market

How it compares

The SMA SI30-20 against the closest-power inverters from other brands.

Specification	SMA SI30-20SMA	Afore New Energy Technology AF30K-THAfore New Energy Technology	Alpha ESS M30-INV-AUAlpha ESS

Rated power?	30 kW	30 kW	30 kW
Max efficiency?	0.0%	0.0%	0.0%
MPPT trackers?	Not verified	Not verified	Not verified

Phases	Three-phase	Three-phase	Three-phase
Type	Battery	Hybrid	Hybrid
Battery ready	Yes	Yes	Yes
Warranty	5 years	Not verified	Not verified

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

Documents

5-year inverter warranty

SMA SI30-20

This warranty covers defects in materials and workmanship for five years. Important exclusions include unauthorized modifications and installations.

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

Coverage shape: Pro-rata — value reduces with age
If you sell the home: Transfers to the next homeowner
What voids it: Void if installation is not performed by an accredited professional or if product is modified without prior approval.
Environment limits: None stated

Read the official warranty document (PDF)

Fault & error codes — SMA SI30-20

From the install manual

8 documented

Showing 8 of 8. The official install manual is the authoritative source — always confirm before acting.

3601criticalCall your installer
Manual (PDF)
High leakage current detected
Likely cause
The leakage current of the inverter and battery is too high, leading to a ground fault.
What to do
Check battery and DC cabling for ground faults.
601criticalCall your installer
Manual (PDF)
High proportion of DC in grid current
Likely cause
Excessive direct current detected in grid current.
What to do
Check grid connection for direct current. Frequent occurrence requires contacting the grid operator.
6501criticalCall your installer
Manual (PDF)
Overtemperature - self-diagnosis
Likely cause
The inverter has switched off due to excessive temperature.
What to do
Ensure sufficient ventilation and temperature management/methods are being observed.
9307criticalCall your installer
Manual (PDF)
Defective battery system
Likely cause
A fault in the battery system has been detected.
What to do
Contact the battery manufacturer for support.
301warning
Manual (PDF)
Grid incident - Voltage out of range
Likely cause
The ten-minute average value of the grid voltage is outside the permissible range.
What to do
Check the grid voltage at the connection point. If it's out of range, contact the grid operator.
401warning
Manual (PDF)
Grid incident - Disconnected from utility grid
Likely cause
A stand-alone grid or a significant change in grid frequency was detected.
What to do
Check for power outages or maintenance on the utility grid. Contact the grid operator if necessary.
404warning
Manual (PDF)
Grid incident - Disconnected from utility grid
Likely cause
A stand-alone grid or a significant change in grid frequency was detected.
What to do
Check for power outages or maintenance on the utility grid. Contact the grid operator if necessary.
501warningCall your installer
Manual (PDF)
Grid frequency not permissible
Likely cause
The grid frequency is outside permissible limits.
What to do
Check the grid frequency and report frequent fluctuations to the grid operator to change operating parameters if approved.

Part of the SMA SUNNY ISLAND X series

Compare every SMA SUNNY ISLAND X variant side by side →

More SMA Australia Pty Ltd Inverters

SB1.5-1VL-40 (AS4777-2 2020)

1.5 kW · 1φ

SB2.5-1VL-40 (AS4777-2 2020)

2.5 kW · 1φ

SB3.0-1AV-41 (AS4777-2 2020)

3 kW · 1φ

SB4.0-1AV-41 (AS4777-2 2020)

4 kW · 1φ

SB5.0-1AV-41 (AS4777-2 2020)

5 kW · 1φ

SB6.0-1AV-41 (AS4777-2 2020)

6 kW · 1φ

View all SMA Australia Pty Ltd inverters