Updated September 2026
Westpac Solar Finance
Westpac Greater Choices can provide eligible home-loan customers with up to $50,000 interest-free for five years for qualifying energy-efficient upgrades, including solar.
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Westpac Greater Choices0% interest for 5 years
Finance limit / structureUp to $50,000
Term / rate afterFive-year interest-free period
ExampleA $15,000 solar system repaid evenly over five years is about $250 per month, with no interest during the interest-free period.
EligibilityAvailable to eligible Westpac home-loan customers. Lending criteria and eligible-product rules apply.
Bank
Headline offer
Limit
Key point
Westpac
0% for 5 years
Up to $50,000
Designed to be repaid in full within five years; solar systems and batteries are eligible.
ANZ
1% p.a. fixed for 3 years
$3,000–$80,000
Good Energy Home Loan; current EECA comparison lists an existing ANZ home loan requirement.
ASB
1% p.a. fixed for 3 years
Up to $80,000
Better Homes Top Up; solar panels, batteries and inverters are eligible; minimum equity criteria apply.
BNZ
1% p.a. fixed for 3 years
Up to $80,000
Better Future top-up; renewable energy including panels, batteries and inverters is eligible.
Kiwibank
Variable home-loan rate
Product-specific
For eligible systems over $5,000, Kiwibank says it can contribute up to $2,000 over four years; SEANZ installer requirement applies.
Rates, limits and eligibility can change. This comparison is general information, not financial advice. Confirm current terms with the bank before applying. Source checks: bank product pages and EECA, 24 September 2026.
What matters beyond the headline rate
Compare the loan and the solar system together.
Low-rate periodCheck what happens when the promotional period ends and whether you intend to clear the balance before then.
Borrowing limitBattery storage, switchboard work, EV charging and hot-water upgrades can change the total project value.
Equity & eligibilityMost products are home-loan top-ups and have lending, equity and property requirements.
Quote requirementsSeveral banks require a valid quote or invoice from a qualified installer before funds are released.
Make the finance useful
Get the system designed first, then take a real number to your bank.
Revolve can model the property in Aurora, prepare the proposed equipment and scope, then give you a solar quote you can use when discussing finance with your lender.