Understanding solar support and Green Loans at CommBank

Using Green Loans for solar energy

Olesya Krasavtseva
Fact-checked by Olesya Krasavtseva
Content Editor at Prostobank Consulting Prostobank Consulting Logo
Updated: 01.09.2026
Table of Contents

Clarifying solar rebates and financing

When searching for a solar rebate, it is important to distinguish between government incentives and bank financing. Commonwealth Bank does not provide a direct solar "rebate"—a rebate is typically a government-funded incentive, such as Small-scale Technology Certificates (STCs), designed to reduce the upfront cost of your installation. Instead, the bank offers a Green Loan, which is a financial product intended to help you cover the remaining costs of installing eligible energy-efficient equipment.

Before you commit to a financing arrangement, visit the Australian government’s energy website to confirm your eligibility for state or federal rebates. Once you have a clear understanding of the government support you can claim, you can then assess whether a Green Loan is the appropriate tool to bridge the gap in your project budget.

Category Details
Methods NetBank, CommBank App, or Branch appointment
Processing Time Variable; typically a few business days for assessment
Eligibility CommBank home loan customers
Key Requirements Quote for eligible equipment, property ownership

Steps to apply for a Green Loan

If you choose to pursue a Green Loan to fund your solar system, follow this sequence to ensure your documentation aligns with the bank's lending criteria.

  • Verify government incentives: Visit the official government energy portal to see if you qualify for STCs or state-based solar rebates, which reduce the total amount you need to finance.
  • Obtain a professional quote: Secure a detailed quote from a CEC-accredited solar installer. The bank requires this documentation to confirm the equipment qualifies as an eligible 'green' upgrade.
  • Log in to your account: Access your profile via the CommBank app or NetBank.
  • Submit your application: Select the Green Loan option, provide your property and income details, and upload your equipment quote.

Troubleshooting common issues

Technical or process errors can occur during the application phase. Here is how to handle the most frequent hurdles.

  • MFA or login issues
    Cause: Often results from outdated contact information in your profile or network delays blocking security codes.
    Fix: Update your mobile number in your account settings to ensure verification codes arrive promptly.
    Fallback: Contact the support line to have your security profile manually verified.
  • App or browser errors
    Cause: Browser cache or an outdated app version can interfere with the document upload process.
    Fix: Clear your browser’s cache or update the CommBank app to the latest version available in your app store.
    Fallback: Try completing the application on a different browser or device.
  • Locked account or access issues
    Cause: Too many failed login attempts can trigger a security lockout to protect your account data.
    Fix: Use the online password recovery tool if you have your client number and security details ready.
    Fallback: Visit a local branch with identification to restore your access in person.

Pro-Tip: Before you sign a contract with a solar installer, confirm with them that they are CEC-accredited. CommBank’s financing criteria often require that the equipment and the installation meet specific industry standards; choosing a non-accredited installer may impact your ability to secure the loan or claim government certificates.

Frequently Asked Questions

Q: Why did I receive a loan amount that is lower than my quote?
The bank assesses your borrowing capacity based on your current income and existing debt obligations, which might be lower than the cost of the solar system you selected. Additionally, if the bank estimates that the government rebate (STC value) will significantly reduce the net cost, they may adjust the loan offer accordingly. Always ensure you have deducted the expected government rebate from your total project cost before submitting your loan application to avoid a mismatch.

Q: Can I use the Green Loan for battery storage as well as solar panels?
Green Loans are typically designed for a range of energy-efficient home improvements, which often includes battery storage systems, provided they are part of an eligible installation. However, the system must meet the bank's specific list of qualifying equipment. If your installer includes a battery, confirm with the bank’s lending criteria for that specific equipment type; if it falls outside the accepted list, you may need to look for alternative financing for that component.

Official Bank Information

Commonwealth Bank (CBA)

Support: 13 22 21

SWIFT Code: CTBAAU2S

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