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Home battery · Green ESS · MINT series · CEC approved December 2024

Green ESS MINT7240

A 2.75 kWh home battery.

Installed in Perth, after rebates: ~$2,475Estimate: your own quote will vary
WA Battery Scheme rebate: $0It's under the scheme's 5 kWh minimum size
Usable capacity: 2.75kWhBelow the smaller-home band
Warranty: 10yrs

MINT7240: the short answer

In the MINT seriesUsable capacity: 2.75kWhUsable capacity
WA Battery SchemeIt's under the scheme's 5 kWh minimum size: Not eligibleIt's under the scheme's 5 kWh minimum size

The MINT series

See the whole series →

What we can tell you

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

2.75 kWh is below the smaller-home band.
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: 2.75kWh; How much energy it stores for you to use
Round-trip efficiency: 92%; How much of the energy you store comes back out
Depth of discharge: 90%; How much of the battery you can actually use
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: 1kg; Installed weight

Warranty and support

This warranty covers battery defects for 10 years. Avoid misuse and unauthorized repairs. Claims must be made within 14 days of detection.

Product: 10 years; not transferable; full replacement
At year 10: At least 70% of capacity
Throughput: 8000 MWh
Installation: Must be installed by an SAA-accredited installer
Support: Not verifiedWe have not verified this brand's Australian support structure. Confirm warranty arrangements with the manufacturer or your installer.

Warranty document Datasheet Compare warranties

WA Battery Scheme eligibility

Not eligible

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

This battery is AC-coupled. To get the WA rebate, the interest-free loan, VPP payments or DEBS export credits, it needs a gateway device from Synergy's approved list (for example SMA or Redback), or an inverter and battery from the same brand (Sungrow or Fronius). Without one, exports are capped at 1.5kW.

Some third-party gateways struggle to pass compliance testing, and adding anything to an AC-coupled system later means the whole system has to be re-checked. For many homes, switching to a hybrid (DC-coupled) inverter is the simpler path. AC vs DC coupling

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

Full datasheet

Every figure on file for the Green ESS MINT, by section.

Cell & chemistry

Chemistry: LFP

Capacity & power

Nominal capacity: 2.9 kWh
Usable capacity: 2.75 kWh

Lifespan & degradation

Capacity retained at year 10: 70%
Warranted throughput: 8000 MWh

Physical

Weight: 1 kg
IP rating: IP65

Installation requirements

Top clearance: 150 mm
Side clearance: 150 mm
Front clearance: 150 mm
AC breaker: 60 A
Cable gauge: 6 mm²
Earthing method: TN-S
DNSP pre-approval: Yes
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 — Green ESS MINT

Extracted from the installation manual

10 documented

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

F10criticalCall your installer
Manual (PDF)
Aux Power Board Failure
Likely cause
Failure in the auxiliary power board.
What to do
Contact Sol-Ark.com for support.
F15criticalCall your installer
Manual (PDF)
AC Over Current Failure
Likely cause
Usually caused by loads being too large for the inverter.
What to do
Reduce loads or check if battery discharge amps programmed correctly.
F16criticalCall your installer
Manual (PDF)
GFCI Failure
Likely cause
Ground fault. Check PV+ or PV- wiring.
What to do
Inspect wiring and rectify ground fault issues.
F18criticalCall your installer
Manual (PDF)
Tz AC Over Current Fault
Likely cause
Overloaded the load output.
What to do
Reduce loads immediately.
F20criticalCall your installer
Manual (PDF)
Tz DC Over Current Fault
Likely cause
DC current from battery that is too large.
What to do
Reduce battery discharge or load.
F8criticalCall your installer
Manual (PDF)
GFDI Relay Failure
Likely cause
Current leakage from inverter AC output to ground, check ground and neutral are connected at the main panel.
What to do
Check connections and rectify the ground/neutral issue.
F1warning
Manual (PDF)
DC Inversed Failure
Likely cause
If you have parallel systems and turn one system off, you will get this notification. Not a fault.
What to do
No action required.
F17warningCall your installer
Manual (PDF)
Active Battery Hold
Likely cause
Issue related to battery management.
What to do
Contact Sol-Ark.com for further assistance.
F22warning
Manual (PDF)
Tz Emergency Stop Fault
Likely cause
Emergency stop was initiated.
What to do
Check system status and reset if needed.
F13info
Manual (PDF)
Grid Mode Change
Likely cause
Can happen when not using batteries or if grid input settings are changed.
What to do
No action required, just monitor system status.

About Green ESS

Years in the Australian market: 2+ (CEC-approved products since 2024)
Local support: Not verified
CEC-listed products: 7 models

View full profile →

What it costs in Perth

$2,475

Typical installed price, before rebates

WA Battery Scheme: $0
Federal STCs: $0
You’d pay about: $2,475

The WA rebate is $0 here: it's under the scheme's 5 kWh minimum size. Federal STCs are $0 here: this battery is below the size where the program issues certificates. Estimates only; your quote will 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 is below the smaller-home band. The WA rebate caps at 10 kWh, but that is a rebate limit, not a sizing guide.

Frequently asked questions

How it compares

The Green ESS MINT7240 against the closest-sized batteries from other brands.

Specification	Green ESS MINT7240Green ESS	Alpha ESS M4856-PAlpha ESS	SolaX Power T-BAT H 3.0 V2SolaX Power

Usable capacity?	2.75 kWh	2.8 kWhbest value	2.8 kWhbest value
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.

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.

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