Getting started on your home energy upgrade journey

  • Solar & battery

    Combining a solar system with battery storage can help you maximise the power of solar energy while also reducing your energy bills.

    Learn more about the benefits of solar & battery

  • Electrification

    Updating all your home appliances with energy-efficient electric appliances can not only reduce your energy bills, but also improve home air quality.

    Learn more about energy-efficient appliances

  • Heat pumps 

    Hot water plus space heating and cooling make up a large portion of your home’s energy usage. Appliances that use a heat pump can have a big impact on your bills.

    Learn more about heat pumps

Choose a financing solution for your home energy upgrade

Personal loan for eligible sustainable products

A competitive rate to help you go greener. Apply online – it will take about 15 minutes.

Unsecured Fixed Loan

  • Interest Rates: 7.50% p.a. - 8.50% p.a.
  • Comparison Rates: 8.90% p.a. - 9.89% p.a.


  • $93 weekly
  • Borrowing $25,000 over seven years paying principal and interest1

Click below to explore our other personal loan options for eligible sustainable products.


We've teamed up with UPowr to provide interest-free finance for solar and battery installations. 
  • No interest
  • $0 fees
  • Borrow from $1,000 to $30,000
  • 1-5 year loan terms2


  • $25 weekly
  • Based on a starting unit cost price of $6,500 over five years

CommBank Green Loan

Apply in branch or over the phone with a specialist lender to take you through the process in a few easy steps.
  • Interest Rate: 3.99% p.a.
  • Unsecured loan rate
  • 10 year fixed rate and
    comparison rate3
  • For eligible CBA home loan


  • $71 weekly
  • Borrowing $30,000 over 10 years paying principal and interest


Why consider home energy upgrades?

Lower ongoing utility bills

Energy efficient upgrades like solar and battery, plus energy appliances like a heat pump hot water heater, can help reduce your energy bills4.

Government rebates available

There are a range of government rebates available to reduce the upfront cost of home energy upgrades5.

Be a part of the change

Join the global transition in supporting the movement to net zero emissions by doing your part to reduce emissions in the home.

Our latest sustainability stories & insights

The dynamic duo: Solar plus battery for a more sustainable home

Planning for upgrades: Be prepared when it breaks

7 cost-effective upgrades for a more energy efficient home

A guide to converting to an all-electric home

For more sustainability news

Things you should know

  • This information has been provided without considering your individual objectives, financial situation or needs. Before making any decisions, you should consider its appropriateness to your circumstances and consider obtaining professional advice.

    The Commonwealth Bank is not authorised and does not make any assertions about reduced consumption from non-renewable energy sources through clean energy purchases installations. Advice and further information should be sought from relevant certified industry professionals.

    Personal Loan for eligible energy-efficient products: Discounted interest rate is available on eligible energy-efficient products only and subject to verification. Find out more at

    1$93 weekly repayment is calculated on an example of a $25,000 green unsecured fixed loan over a 7 year term and our lowest rate of 7.50% p.a. (comparison rate 8.90% p.a.). This comparison rate is true only for the examples given and may note include all fees and charges. Different terms, fees or other loans amounts might result in a different comparison rate.

    Unsecured Fixed Rate Personal Loan interest rate ranges (with energy-efficient discount applied) are set out below. Comparison rates and examples are based on a $30,000 unsecured fixed rate loan over five years:

    • Interest rates range from 7.50% p.a. to 8.50% p.a. (comparison rate from 8.90% p.a. to 9.89% p.a.). The estimated total amount payable including fees is between $37,218 and $38,080

    Interest rates at the lower end of our range; for example, 7.50% p.a. (comparison rate 8.90% p.a.), may be offered to low-risk customers with an excellent credit history.

    An excellent credit history is determined by, among other things, paying your bills and making loan repayments on or ahead of time, being disciplined with your credit applications, and not overextending yourself financially.

    Actions that can negatively impact your credit history include missing bill or loan repayments, defaulting on your credit facility, or making a large number of credit applications in a short period of time. You can find out more about how your credit score is calculated and tips for improving your credit score at our Credit Score Information Hub.

    Applications are subject to the Bank’s lending criteria and credit approval. View the Personal Loan Terms and Conditions. Full terms and conditions will be included in our loan offer. Fees and charges may apply. 

    2InstalPay: Loan-term extensions are not available. A longer term means your repayments will be smaller. And there's no charge for making extra repayments or paying out early.

    InstalPay has a maximum loan term of five years. If you’re looking for an option with a longer term, explore our Going Greener with CommBank guide. If you have a home loan with us, you may be eligible for a CommBank Green Loan attached to your existing home loan, which has a 10-year term.

    InstalPay is only available online. You’ll receive your documents digitally, including Contract Schedule and InstalPay Terms and Conditions and all communications in relation to the product will be delivered via Email, NetBank or the CommBank app.

    Applications are subject to the Bank’s lending criteria and credit approval. View the InstalPay Terms and Conditions. Full terms and conditions will be included in our loan offer. Fees and charges may apply.

    CommBank Green Loan: Applications are subject to credit approval, satisfactory security and minimum requirements. Full terms and conditions will be set out in our loan offer, if an offer is made. Fees and charges are payable.

    3Comparison rate calculated on a $30,000 secured loan for CommBank Green Loan over a ten-year term. WARNING: Comparison rate is true only for the examples given and may not include all fees and charges. Different terms, fees or other loan amounts might result in a different comparison rate.

    4See article by Climate Council: Shoot for the stars: Top tips to improve your home’s energy efficiency, published 26 November 2021.

    5Go to to see what home energy upgrade rebates you may be eligible for.

    For more information about Target Market Determination (TMD), please refer to the TMD

    Commonwealth Bank of Australia ABN 48 123 123 124, Australian credit licence 234945.