Updated September 2026
Solar Green Loans Compared 2026
A plain-English comparison of the major New Zealand bank options that can help fund solar panels, batteries and other eligible home-energy upgrades.
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Choose your bank to see the current green-loan structure, key eligibility points and a simple solar repayment example.
WestpacGreater Choices — 0% for five years, up to $50,000.ANZGood Energy Home Loan — up to $80,000 over a three-year fixed term.ASBBetter Homes Top Up — 1% p.a. fixed for three years, up to $80,000.BNZBetter Future top-up — 1% p.a. fixed for three years, up to $80,000.KiwibankSustainable Energy Loan — variable rate with up to $2,000 contribution.Cash vs Green LoansCompare repayments, interest and cash-flow trade-offs.
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.