Swap Your Power Bill for a Solar Asset. With 0% Interest.
New Zealand banks are offering interest-free green loans to help homeowners switch to solar. By using Google's 3D satellite solar data, we map your roof's sunlight potential to show you exactly how many panels fit, what you will generate, and how your solar payment can match what you already pay energy companies.
See How Much Solar Saves on Your Power Bill
Type your address. Our satellite scan reads your actual roof and shows your real savings potential in 10 seconds.
New Zealand Roofs Only — Nationwide Coverage.
Instant Google Solar API scan
Calculates sun hours, shading, and usable roof area.
Sized to your power consumption
We size your panels and battery to offset your monthly bill.
Zero out-of-pocket setup
Finance through 0% or 1% home loan top-up programs.
No salespeople or phone calls
See your numbers instantly on screen. Report download included.
How It Works
We've made finding out if solar works for your roof completely friction-free.
3D Satellite Scan
Google's 3D satellite algorithms map your roof's physical footprint, slope, orientation, and surrounding shade.
Bill Offset Match
We cross-reference your roof's generation potential against your monthly power bill to size the most cost-efficient setup.
0% Loan Swap
See how an interest-free bank loan top-up covers your system cost, matching or beating your current monthly power bill.
The 0% Interest Solar Hack
Why continue renting electricity from retailers when you can own your power grid using your bank's interest-free green loan?
Renting Electricity
Worst Deal- ✕Rates Rise Forever: Retailing power prices increase by 5% to 7% per year in NZ.
- ✕Infinite Repayments: You pay the utility company every month for the rest of your life.
- ✕Zero Home Equity: $0 is added to your property value. You are paying off the retailer's assets.
Owning Solar (0% Green Loan)
Smart Choice- ✓No Interest Cost: Borrow up to $50,000 at 0% interest from Westpac, or 1% from ANZ/ASB.
- ✓The Monthly Bill Swap: Your monthly loan repayment is typically offset by your power savings.
- ✓Build Home Wealth: Adds immediate capital value to your home. Once paid off, your power is 100% free.
Frequently Asked Questions
Google's Solar API uses high-resolution 3D models built from aerial imagery. It analyzes the orientation (north-facing is best in NZ), pitch (angle), and total surface area of your roof, then cross-references this with regional weather profiles to compute actual sunshine hours per year, accounting for shading from trees or adjacent structures.
If your address is in a brand-new sub-division or a rural pocket without high-resolution aerial mapping, our tool detects this and automatically loads regional average parameters. You will still receive a highly accurate, customized ROI projection, which our accredited partners will verify manually during a subsequent call.
Most major banks (such as Westpac, ANZ, ASB, and Kiwibank) allow existing home loan clients to top up their mortgage to fund energy efficiency upgrades. Westpac's Greater Choices offers 0% interest for 5 years up to $50,000, while ANZ and ASB offer 1% fixed interest for 3 years up to $80,000. Our tool models these terms against your savings, showing how your payments stay about the same as your current utility bill.
Solar panels last for 25+ years. If your roof is already approaching 18–20+ years, we recommend bundling a reroof with your solar install. This allows you to replace your roof and install solar at the same time, often matching both into a single interest-free payment so you avoid paying out-of-pocket for structural repairs.
No. The online tool is entirely self-serve and provides a free, instant estimate on screen with a downloadable PDF. Only if you decide to take the next step and request a final, binding quote do we invite you to book a video call with our SEANZ-accredited design partners who handle structural approvals.