• Launch Date: 1 July 2025
• Eligibility: Homeowners or renters with landlord permission
• System Size: Between 5kWh and 50kWh
• Subsidy: will be available as per usable capacity of the battery
• Compliance: Details to be confirmed and subsequent platform updates to be expected

• Follow local electrical/safety regulations
• Do not commission or activate systems before 1 July
• Take full IOV photos at each step
• Leave rough-in wiring disconnected
• For hybrid installs, consult the DNSP and manufacturer. When in doubt—don’t connect.

Here’s what we believe may be required for Battery STC claims under the upcoming scheme:

• Installer Selfies – at the start, middle, and end of installation
• Wide-Angle Photo – clear image of battery location including walls, windows, exits, smoke alarms, vents, and electrical fixtures
• Switchboard & Battery Signage – compliant with AS/NZS 5139
• Battery Compliance Label – showing make & model
• Smoke Alarm Photo – if required
• Battery STC Form – signed by both parties on or after installation
• Latest Electricity Bill
• CCEW – listing address, NMI, install date, and battery (post July 1st)
• DER Register Entry – with battery make/model, PV system and NMI
• Tax Invoice – must include ABN, customer name, install date, total, and GST
• Proof of Payment – matched to invoice

This checklist is subject to change pending CER finalisation. We’ll notify you immediately once confirmed.

✅ Take a tape measure
✅ What is a habitable room - bedroom, lounge, sunroom, inside the home
✅ Battery site risks: add bollards for vehicle protection, ensure BBQs, portable/in-situ gas cylinders at safe distance from battery and in compliance with AS/NZS5139 & AS/NZS3000
✅ Remember to update your installers mobile apps

• Do not commission batteries before 1 July to remain eligible for Battery STCs.
• Ensure your installers are accredited for battery installations. If not, please get them to contact SAA and get the ball rolling.
• Ensure your battery suppliers have the make and model listed on the CEC listing.
• Ensure you installers capture the requisite photos and take appropriate selfies.

• ❗ PRCs cannot be stacked with this rebate
• ❗ Rough-in is allowed before 1 July 2025, but:
  • No commissioning or final setup until on or after 1 July
  • Must take clear, staged photos to demonstrate compliance
• ❗ SAA daily installation limits:
  • Max 2 jobs/day, e.g.:
    • Two batteries, two solar systems, or one of each
• ❗ Commissioning cannot occur before 1 July
  • All Certificates of Electrical Safety must confirm date of commissioning
• ❗ IOV photos at each key stage are mandatory:
  • Rough-in
  • Pre-commissioning
  • Final setup (on/after 1 July)

• Battery and inverter must be listed on the CEC Approved Product List
• Installer must be SAA-accredited
• Installation must comply with AS/NZS 5139 and AS/NZS 3000
• Certificate of Compliance (CCEW) must:
  • Be dated 1 July 2025 or later
  • Include the statements:
    • “System has not been commissioned prior to 1 July 2025”
    • “All information provided is true and correct”

So, considering all of these restrictions, where can a battery be installed? The best options are outside of habitable rooms if there is a suitably non-combustible material (see below) between the battery and the habitable room. Other options include, a garage, laundry, or storage room if the appropriate clearances between windows, doors, and appliances are maintained. Ancillary buildings such as a shed could also be used, but care needs to be made when considering distance from the switchboard, cable sizing/voltage drop and the necessary battery clearance values.

Non-Combustible Barriers

Materials deemed suitably non-combustible based on AS 1530.1:

1. Brick or masonry block
2. Concrete
3. Compressed cement sheeting
4. Ceramic or terracotta tiles

When installing the battery on a wall shared with a habitable room that is made of combustible material (e.g. wood), a non-combustible barrier must be placed between the battery and the wall. This barrier must extend 600mm to each side of the battery and 900mm above the battery even if there is a corner or a roof (so that it wraps around the corner or ceiling). We also recommend adding a non-combustible barrier if the wall is shared with a staircase or main walkway, fore example, near the front door of the house.

For examples of non-combustible barrier installations and other important information, please see the GHD Battery Booster Installation Guide.

Outdoor Installation

Please note, if you are installing a battery outside, care needs to be taken to not install it in direct sunlight. This can either be on the southern wall of the building, beneath eaves, or a fabricated shroud assuming the necessary clearances (900mm from the top) are maintained. Excessive sunlight can bring the battery temperature out of its acceptable range, voiding the warranty and creating a potentially dangerous situation due to thermal runaway of the battery.

• Latest electricity bill (showing NMI) – proof or RESI or small business site
• Certificate of Compliance (CCEW/COES) including the battery details, dated 1 July or later
• Birdseye site map showing battery and distances (suggested)
• Evidence battery is VPP capable (not applicable for OFF GRID systems) – copy of warranty or datasheet
• Please note if installing a battery at a site with an existing PV system the inverter must be CEC approved – if it is no longer on the approved list you will need to evidence that the inverter was not removed from the CEC approved list due to safety issues – for example - declaration from the manufacturer or CEC

Nomination & Declaration Forms:
• These will be auto-generated by our GB portal and can be signed via the GB App or via a link that can be sent to the parties involved from the GB Portal:
o STC Assignment form
o Designer & Installer Declaration
o Retailer Declaration

All photos must be GEO-TAGGED

Before Installation
• Existing PV system (inverter & array)
• Installer onsite selfie

During Installation
• Battery in situ (where possible Wide-angle photo of battery in situ (include exits, alarms, windows)
• Pre-commissioning installer selfie
• Battery Compliance plate - make & Model
• Battery Serial number

After Installation
• Final installer selfie
• Smoke alarm in situ to battery (suggested where applicable)
• Safety bollard in situ to battery (suggested where applicable)

• PRC BESS1: Cancelled 30 June 2025 – only STCs can be claimed from 1 July
• PRC BESS2: Can be stacked with STCs
o Involves the Homeowner’s signing up to a behind the meter battery energy storage system up to a demand response contract (Virtual Power Plant)

Mandatory photos at each stage:

1. Rough-in
2. Pre-commissioning – cabling installed but not connected to switchboard or inverter
3. Final setup (on or after 1 July) – battery energised

• Rough-in allowed before 1 July 2025
o No commissioning or final setup allowed pre-1 July
o Clear staged selfie photos – Rough-in

Pre-commissioning – cabling installed but not connected to switchboard or inverter

• Certificates of Electrical Safety:
o Must state commissioning on/after 1 July

• Combo installs (PV + battery):
o PV will be paid under existing terms
o Battery will have separate payment terms - Pay on Approval

• Up to 33% oversizing is allowed under STC eligibility
• To exceed 33%, battery must be commissioned with evidence, following manufacturer guidelines – only eligible for installs on or after 1 July
• For combo installs (PV + battery), both must be commissioned on or after 1 July to claim STCs for any oversizing that exceeds the 33%

1 July – 1 August 2025 (Transition Period)
Maximum combinations per day:
• 2 solar systems; or
• 2 battery systems; or
• 1 solar + 1 battery system; or
• 1 solar + 2 “ready to commission” battery systems; or
• 1 battery + 2 “ready to commission” battery systems; or
• 4 “ready to commission” battery systems (selfies 1 & 2 need to be dated prior to July 1st)

From 2 August 2025 Onward
• Max 2 installs per day:
o 2 solar, or
o 2 battery, or
o 1 solar + 1 battery system
• Exemptions may apply under existing SAA arrangements

• Rough-in (i.e., cabling) is allowed before 1 July, but:
o It must not be connected to either the inverter or switchboard
o Therefore, the battery is not electrically connected and has not been issued a certificate of electrical compliance

• Hybrid inverters:
o The PV system can be commissioned and STCs claimed before 1 July
o The battery must not be connected to the switchboard before 1 July

Adding capacity to, or replacing, an existing battery can receive support under the program if:
• The existing battery has not already received support under the program, and
• The new battery system or the additional capacity meet the nominal capacity requirements

Scenarios (existing battery with 4 kWh):
• Adding a battery of 4 kWh would NOT be eligible (under the minimum 5 kWh threshold)
• Adding a battery of 6 kWh would be eligible (exceeds the minimum 5 kWh threshold)
• Adding a battery of 95 kWh would be eligible (under the 100 kWh maximum)
• Adding a battery of 97 kWh would NOT be eligible (exceeds the 100 kWh maximum)

A Virtual Power Plant (VPP) is a system of coordinated behind-the-meter solar PV and battery systems that act as a single power source and enable energy to be shared.

To be eligible under the program, an on-grid battery system (including the inverter) needs to have the technical capability to participate in a VPP. This would provide the consumer with the option to participate in a VPP at the time of installation or in the future.

A battery is VPP capable if the inverter:
• Can connect to the electricity grid and external entities (directly or indirectly)
• Can communicate and respond through remote signals

Participation in a VPP is not a requirement of the program. However, if consumers would like to participate in a VPP, this will require an ongoing internet connection.

Off-grid battery systems do not need to be VPP capable. However, if a VPP capable battery system is installed at a premises that is off-grid, it can still receive support under the program.

• The program will provide support for a battery system that is installed with an existing solar PV system, or where a battery system and new or replacement solar PV system are installed together.
• Solar PV systems should have less than 100 kW in capacity as eligible under the SRES.
• There are no minimum capacity Solar PV system size restrictions.

• Battery systems installed without solar PV (which solely store energy from the grid) will not be eligible.
• This is to support storing excess solar energy during the day to provide for peak evening electricity needs.

Battery systems can be added to existing solar PV systems if the addition does not impact the safe function of the system.

At the time of battery installation, the inverter model must:
• Not be ineligible under the Renewable Energy (Electricity) Regulations 2001
• Be listed on the CEC approved product list

If the inverter model has been removed from the CEC approved products list, it may still be eligible under the program if its removal was not due to an identified safety risk – you will need to provide evidence of the latter.

What Has Changed
• From 1 July 2025, accreditees who previously held SPS Design & Install Accreditation but did not hold an unrestricted electrical license have been transitioned to: SPS Design & Install ELV (Extra Low Voltage).

Where Is This Reflected
• These changes appear in the Accredited Persons List, with affected individuals listed under SPS Design & Install (ELV).

What Systems Can ELV-Accredited Persons Sign Off On
• Only systems operating at Extra Low Voltage (ELV) on both AC and DC sides.
• They cannot sign off on systems operating at Low Voltage (LV).

Voltage Definitions (AS/NZS 3000)
• ELV:
    o 0–50V AC
    o 0–120V ripple-free DC
• LV:
    o 50–1000V AC
    o 120–1500V ripple-free DC

Who Can Sign Off on LV Systems
• Only installers with unrestricted electrical licences and SPS Design & Install (Full) accreditation.
• These individuals can install both ELV and LV battery and solar systems – off-grid and on-grid.

Licence Verification
• To confirm the type of licence an installer holds, use the SAA Licence Status Check tool.
• Required:
    o SAA Accreditation Number
    o First and Last Name
• SAA Licence Status Check - SAA Licence Status Check

• Use the Greenbank STC Battery Calculator on our website - Greenbank STC Battery Calculator 
• STCs are calculated based on usable battery capacity (kWh).
• Battery eligibility is based on a nominal capacity of 5–50 kWh.
• The discount rate in 2025 would be represented as 9.3 STCs per kWh of usable capacity.
• The number of STCs will decline for battery systems until the scheme ends in 2030.

• The nominal capacity is the maximum amount of energy a battery can store at full charge.
• The usable capacity of the battery is the amount of energy that can be discharged from a battery and represents the power that a home or business can draw from the battery.
• For example, a battery with 10 kWh nominal capacity with a depth of discharge of 90% has a usable capacity of 9 kWh.
• Information on the nominal and usable capacity of a battery system is available on the CEC’s list of approved battery products.

Unlike solar PV, only one battery is eligible at each address, once.

• Installer must be SAA-accredited.
• Installation must comply with AS/NZS 5139 and AS/NZS 3000 standards.

• Battery and inverter must be listed on the CEC Approved Product List.
• Nominal battery capacity must be between 5–50 kWh.
• If the Nominal battery capacity is 5-100 Kwh you can only claim STCs on the first 50 Kwh.
• Both residential and commercial installations are eligible.