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Home battery · Growatt · CEC approved January 2026

Growatt ALP 45.0L-E2

A 45 kWh home battery — very big home size, the 40+ kWh band.

Installed in Perth, after rebates: ~$33,757; Typical estimate — your own quote will vary
WA Battery Scheme rebate: Depends on your inverter; The scheme needs a Synergy-approved inverter — we don't know yours
Usable capacity: 45kWh; Very big home size — the 40+ kWh band

What we can tell you

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

45 kWh sits in the very big home band (40+ kWh).
It is CEC-approved, which is a condition of both the federal STC discount and the WA Battery Scheme.
We can't score it: a value score needs a price and full specs, and without them any number would be guesswork.

Key specs, in plain terms

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

Usable capacity How much energy it stores for you to use: 45kWh
Round-trip efficiency How much of the energy you store comes back out: 92%
Depth of discharge How much of the battery you can actually use: 90%
Warranty 60% of capacity guaranteed at the end of it: 10yr
Battery chemistry Lithium iron phosphate — the long-cycle-life type: LFP
Size and weight Installed weight: 44kg

Full datasheet

Every figure on file for the Growatt ALP, by section.

Full datasheet, by section
Specification	Value
Cell & chemistry
Chemistry	LFP
Capacity & power
Nominal capacity	45 kWh
Usable capacity	45 kWh
Lifespan & degradation
Capacity retained at year 10	60%
Warranted throughput	7 MWh
Physical
Weight	44 kg
IP rating	IP66
Operating environment
Operating temperature	0°C to 50°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.

Documents

Warranty and support

Warranty terms and Australian support structure.

This 10-year warranty covers defects in the battery if used with Growatt systems. Exclusions include damage from tampering. Claims must be submitted within 14 days of the issue.

Duration

years

Throughput

MWh

Max Temp

50°

celsius

Max Backup

Level 0

No Backup

Australian support structure

Australian Office12 years in AU market

Growatt Australia

Direct manufacturer warranty. Australian consumer law applies.

Perth heat

Rated to 50°C, which covers Perth's hottest days.

Key warranty terms

•Depth of Discharge: 90% usable capacity
•Round-trip Efficiency: 92% rated
•Annual Degradation: ~2.5% per year expected
•Installation: Must be installed by SAA-accredited installer
•Operating Conditions: 0°C to 50°C

✗ Non-transferableFull replacement≥60% capacity at year 10

Warranty Document Datasheet Compare Warranties

WA Battery Scheme eligibility

Check eligibility

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
Inverter must be CSIP-AUS compliant under the current WA framework.
Synergy SSL approved inverter
Needs pairing with a Synergy SSL approved inverter.
VPP activation ready
VPP activation requires a Synergy SSL approved inverter.
WA Battery Scheme rebate
Requires Battery Rewards participation under the current WA framework.
Synergy Battery Rewards
Requires a CSIP-AUS compliant system and reliable internet.
Interest-free loan
Not eligible for interest-free financing.

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

About GROWATT

View Full Profile →

Years in AU Market12+ years

Local SupportNot verified

CEC-Listed Products50 models

12yr AU

CEC-approved products since 2014

12 years in the Australian market

Fault & error codes — Growatt ALP

Extracted from the installation manual

6 documented

Showing 6 of 6. The official install manual is the authoritative source — always confirm before acting.

ALMcriticalCall your installer
Manual (PDF)
Alarm indicator is on indicating a fault or protection status.
Likely cause
There is a fault condition such as discharge short circuit, precharge short circuit, or internal communication failure.
What to do
User should stop using the battery and contact the installer for repairs.
Parallel connection failurecriticalCall your installer
Manual (PDF)
Indicates failure in communicating with parallel connected batteries.
Likely cause
Connection issues between batteries.
What to do
Stop using the battery and contact the installer for repairs.
ALM Light FlickerswarningCall your installer
Manual (PDF)
Indicates one of several potential issues including communication loss or discharge under voltage protection.
Likely cause
Communication loss between two batteries or the battery discharging below safe levels.
What to do
Check CAN connections and recharge the battery if under voltage.
Discharge under voltage protectionwarning
Manual (PDF)
Single cell voltage is below the threshold for under-voltage protection.
Likely cause
Over-discharge of the battery.
What to do
Stop discharging the battery and arrange for recharging.
Charge over voltage protectioninfo
Manual (PDF)
Single cell voltage exceeds the threshold for protection.
Likely cause
Improper charging procedures or faulty components.
What to do
Stop charging and wait until the alarm disappears before proceeding.
External CAN Communication failureinfoCall your installer
Manual (PDF)
Communication loss between PCS and PACK.
Likely cause
Failure in the communication connection.
What to do
Check if the communication terminal connections are secure; contact installer if problem persists.

What it costs in Perth

$40,500

Typical installed price, before rebates

WA Battery Scheme: Depends on your inverter
Federal STCs: −$6,743
You’d pay about: $33,757

The WA Battery Scheme (up to $1,300) needs a Synergy-approved inverter and VPP enrolment. We don't know which inverter you'd pair this with, so it isn't deducted above — ask your installer. STCs assume about $39.9 a certificate. Estimates only; your quote will vary.

Explore your options

Which size band is your home?

Usable capacity, for one battery system

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

This battery is one unit in the very big home band. 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 45 kWh battery

How it compares

The Growatt ALP 45.0L-E2 against the closest-sized batteries from other brands.

Specification	Growatt ALP 45.0L-E2Growatt	Pylontech RM-45-AUPylontech	Sigenergy SigenStor-10S-45.2Sigenergy

Usable capacity?	45 kWh	45 kWh	45 kWh
Continuous power?	Not verified	Not verified	Not verified
Peak power?	Not verified	Not verified	Not verified

Round-trip efficiency?	92%	92%	92%
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 GROWATT

Other CEC-approved products from GROWATT available in Australia.

GROWATT Inverters

Growatt SPH3000 (AS4777-2 2020)

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Growatt SPH4000 (AS4777-2 2020)

4 kW · 1φ

Growatt SPH5000 (AS4777-2 2020)

5 kW · 1φ

Growatt SPH6000 (AS4777-2 2020)

6 kW · 1φ

MAX 100KTL3-X LV (AS4777-2 2020)

100 kW · 1φ

MAX 110KTL3-X LV (AS4777-2 2020)

110 kW · 1φ

View all GROWATT inverters

View full GROWATT 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.