Best Solar Buy Back Rate & Comparison for Main Power Companies in NZ, July 2025
As solar energy becomes a smarter choice for Kiwi homes, understanding the solar power buy back rate offered by each power company is key to maximising your savings. In this guide, we compare the best solar buy back rate options available and explain how Solar Republic makes going solar completely stress-free.
What Is a Solar Buy-Back Rate?
A solar buy back rate is how much your energy provider pays you for the excess power your solar system exports to the grid. It’s usually measured in cents per kilowatt-hour (kWh) and paid as a credit on your power bill.
NZ Power Company Buy-Back Rate Comparison (July 2025)
| Power Company | Buy-Back Rate (excl. GST) | Offer/Extras | Contract Term | Website |
|---|---|---|---|---|
| ElectricKiwi | 8c/kWh | On Everyday Plan | No contract | ElectricKiwi |
| Genesis Energy | 12.5c/kWh | Standard rate | No contract | Genesis Energy |
| Meridian – Solar Plan | 17c/kWh | $300 credit | 3 years | Meridian |
| Meridian – EV Plan | 12c/kWh | 50% off night rates + 6 months EV charging | 2 years | Meridian |
| Meridian – Freedom Plan | 12c/kWh | $10/month credit | No contract | Meridian |
| Meridian – Bach Plan | 12c/kWh | No daily charges | 2 years | Meridian |
| Frank Energy | 11c/kWh | Standard plan | No contract | Frank Energy |
| Mercury | 8.5c/kWh | Standard rate | No contract | Mercury |
| Contact Energy | 8c/kWh | Applies to most residential plans | No contract | Contact Energy |
| Powershop | 13c/kWh | Solar buy-back available (limit 10kW) | No contract | Powershop |
| Octopus Energy | 17c/kWh | Buy-back available (limit 10kW systems) | No contract | Octopus Energy |
Who Offers the Best Solar Buy Back Rate?
Looking at numbers alone, Meridian Energy (Solar Plan) and Octopus Energy both offer the best solar buy back rate at 17c/kWh (excl. GST).
However:
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Meridian’s plan requires a 3-year commitment but includes a $300 credit
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Octopus has no term but limits system size to 10kW
If you value flexibility, Genesis Energy, Frank Energy, or Powershop offer solid rates with no lock-in contracts.
What Else Should You Consider?
Besides the rate, you should also think about:
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Contract duration
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Daily fixed charges (some plans waive them)
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Extra perks, like free EV charging or credit offers
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Your solar system size and how much energy you typically export
About Solar Republic
At Solar Republic, we specialise in end-to-end solar solutions—making your switch to solar smooth, fast, and worry-free.
We handle:
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Onsite measurement and solar system design
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Full professional installation
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Application to Vector for solar approval
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Meter replacement coordination
You don’t need to manage any paperwork—we take care of it all. Just sit back and enjoy the savings from the sun.
Ready to Get Started?
Switching to solar is one of the smartest financial decisions you can make—especially when paired with the right solar power buy back rate.
Let Solar Republic help you:
✅ Find the best system for your home
✅ Get connected to a provider with the best solar buy back rate
✅ Enjoy the sun, while we handle the rest
Contact us today for a free consultation and start saving with solar.
See our 5kW, 7kW and 10kW home solar packages, or request a free quote.