Are you a homeowner researching solar and want to know what you could save?
Move the sliders below — we'll size a system and estimate what it could save you, per year and over its life. It's an independent starting point: no panels to sell, no pressure.
1 Your region (sets the solar yield used below)
2 Property type
3 Your average monthly power bill
4 Roof, sun & direction
Which way does your main roof face?
5 Battery storage
6 Charging an EV?
7 When are you usually using power?
9 Fine-tune the battery size (optional)
Advanced — tweak the assumptions
| Regional solar yield | ~1,192 kWh per kW installed, per year — set by the region you picked above |
| Roof direction | North ~100%, E/W ~87%, south ~70% of ideal |
| Panel size used | 475 W modules |
| Daily supply charge | ~$2.50 / day (stays after solar) |
| Self-consumption | ~27% base (mixed occupancy), higher if home in the day, up to ~85% with battery |
| Payback basis | EECA typical NZ install prices, Dec 2025 (residential) |
| Grid carbon | ~0.10 kg CO₂ / kWh |
Regional yields are indicative, derived from EECA's published regional savings comparison (Dec 2025) and calibrated against recent Taranaki installs. Buyback defaults to 17c/kWh, but some solar-friendly retailers pay more — worth checking your plan, or nudging the number above. Adjust to your own tariff for a closer estimate.
Your estimate
Your export income covers 100% of your $912/yr supply charge — the fixed daily fee that stays whether you're on solar or not.
● Right-sized for your usage.
Install cost is from EECA's published typical NZ prices (Dec 2025) — an independent government benchmark, not our quote. Excludes any loan interest. Your real price comes from a quote against your actual roof, shading and switchboard.
Indicative savings estimate only — based on regional averages and the inputs above. It is not a quote, a guarantee, or financial advice. Real savings depend on your usage pattern, tariff, roof and final design.
From estimate to installed, without the sales pitch
Estimate
Use this tool for a free, no-sign-up ballpark on size and savings.
Get a second opinion
Talk to us about your results, or send us a quote you've already got — we'll tell you straight if it stacks up.
Compare with confidence
We help you read installer quotes side by side, so you know what's fair.
Install
Go ahead with an installer you trust, backed by independent advice — not a sales pitch.
Common questions
Is this a real quote?
No — it's an indicative, ballpark estimate based on regional averages and what you enter. A real quote needs a site visit: your actual roof, shading, switchboard and usage. Use this as a starting point, not a final number.
Do you store what I enter?
No. Everything runs in your browser — nothing is uploaded or saved anywhere unless you choose to send it to us through the contact form.
Will SolarLink install my system?
No — SolarLink is independent advice and consulting, not an installer. We don't sell panels and don't take a cut from any installer. If you want a second opinion on a quote, or help understanding your options, that's exactly what we do.
Where do the savings and cost figures come from?
The savings math is based on your usage, tariff and roof orientation. The indicative install cost and payback use EECA's published typical New Zealand prices (Dec 2025) — an independent government benchmark, not a quote from us or any installer.
Get a second opinion before you sign anything
No panels to sell, just straight advice — from someone still on the tools.
Talk to us