How to Buy Out Your SolarZero System

The short answer: if you want to buy out your SolarZero system, you contact the company or administrator currently managing the SolarZero customer book (as of late 2024, that has been the appointed administrators and any successor entity that took over the contract portfolio), request a written buy-out figure for your specific system, and then independently value the hardware on your roof to make sure the asking price is fair. A reasonable buy-out reflects the depreciated market value of used solar gear in New Zealand, not the original retail price and not the remaining lease payments dressed up as a "discount". Most second-hand residential systems, depending on age and battery condition, sit somewhere between roughly $1,500 and $8,000 for the hardware alone. Anything materially above that range deserves a hard second look, written advice, and a clear "no thanks" if the numbers do not stack up.

This guide is for any household that signed a SolarZero solar-as-a-service agreement and is now wondering whether it makes sense to take ownership of the panels, inverter and battery already sitting on the roof. We will walk through how buy-outs typically work, how to value the kit honestly, who to talk to post-liquidation, and the traps to avoid. For the broader recovery picture, start with our SolarZero recovery resource hub.

What "Buying Out" Your SolarZero System Actually Means

Under a typical SolarZero arrangement, you never owned the hardware. You paid a fixed monthly fee for the right to use the solar (and battery, where fitted) installed on your roof, and SolarZero retained ownership of the equipment. That distinction matters enormously now that the original company has gone through administration.

A buy-out means you pay an agreed lump sum to whoever currently holds the legal interest in that hardware, and in exchange the panels, inverter, battery and associated fittings become your property. The monthly fee stops. You become responsible for warranties, faults, insurance and any future repairs, but you also keep 100% of the savings and any future export revenue.

It sounds simple. In practice, the maths and the paperwork are where the trust-proxy work gets done.

Why a Buy-Out Often Makes Sense

• Cashflow certainty. No more monthly debit, no annual escalator clauses.
• Asset ownership. The system adds to your home's saleable value rather than complicating a future sale with an assignable contract.
• Full benefit capture. Every kWh you self-consume or export becomes yours, not a shared upside with a finance provider.
• Freedom to upgrade. You can add panels, swap inverters, change retailers or fit an EV charger without needing third-party sign-off.

Why a Buy-Out Might Not Make Sense

• The asking price exceeds the realistic market value of the gear.
• The battery is nearing end-of-life and replacement cost would dwarf any saving.
• You are planning to sell the property within 12 to 24 months anyway.
• You cannot get a clean written warranty position from the seller.

Who You Actually Contact Post-Liquidation

When a solar-as-a-service provider enters administration, the customer book (the contracts and the underlying hardware) becomes an asset that gets managed, sold or transferred. For SolarZero customers, the practical contact path has gone through a couple of layers, and it may change again. Here is the sensible order of operations.

1. Check your most recent correspondence. Any letter, email or invoice you have received in the last 12 months should name the entity currently administering your contract. That is your first port of call.

2. Check your direct debit. The name on the debit pulled from your bank account is a strong clue to who currently holds your contract. Look at the most recent payment, not one from two years ago.

3. Ask in writing. Email (do not just phone) the entity you have identified and ask three specific questions:

• "Please confirm in writing that you are the current legal owner of the solar equipment installed at [address] and the counterparty to my service agreement."
• "Please provide a written buy-out figure valid for at least 30 days, broken down into hardware value and any administrative fee."
• "Please confirm what manufacturer warranties remain transferable to me on buy-out, and what end-of-contract removal cost would apply if I decline."

4. If you are stuck, escalate. If you cannot get a response within 10 working days, the Commerce Commission and Consumer NZ both monitor SolarZero-related complaints. Utilities Disputes (the free, independent scheme that covers many energy-related issues) is also worth contacting if your situation involves a related electricity retailer arrangement.

Keep every email. Buy-out negotiations frequently improve once it is clear you are documenting the process.

What a Fair Buy-Out Price Looks Like in NZ

This is the single most important section of this article, so we will take it slowly. The seller's first offer is rarely the fair number. It is an opening position.

A fair buy-out reflects the depreciated market value of the gear sitting on your roof, on the date you buy it, in its current condition. It is not the original RRP. It is not the present value of your remaining monthly payments. And it is not a "discount off retail" calculated against a brand-new equivalent system.

Step One: Identify the Hardware

You need three pieces of information:

• Panel make, model and count. Usually visible on the back of a panel or on your original install paperwork. Common SolarZero-era panels include Trina, JA Solar, Canadian Solar and LONGi monocrystalline models in the 300W to 410W range.
• Inverter make, model and serial number. Often Enphase microinverters, or a string inverter such as Fronius, SolaX, Sungrow or Goodwe depending on install year.
• Battery make, model and capacity (kWh). SolarZero installs frequently included a battery in the 5 kWh to 13.5 kWh range. Brand, age and cycle count matter hugely.

If you cannot find this on paperwork, take photos of the labels on the inverter and battery (safely; do not open enclosures) and of any panel sticker visible from the eaves. A reputable independent installer can also do a paid inspection.

Step Two: Apply Realistic Depreciation

Solar hardware depreciates faster than people expect, especially batteries. A sensible rule-of-thumb framework for NZ used residential gear, assuming the system is in working order:

• Panels: roughly 40 to 60% of new-equivalent price after 5 years, 25 to 40% after 10 years. Tier-1 panels at the higher end of those ranges.
• String inverter: roughly 30 to 50% of new price after 5 years. Inverters often need replacement at 10 to 12 years, so an older unit is worth very little.
• Microinverters (Enphase): hold value slightly better due to longer manufacturer warranties (often 25 years), but still depreciate.
• Lithium battery: the trickiest. LiFePO4 batteries with low cycle counts may retain 50 to 70% of replacement value at 5 years. Older NMC chemistry or high-cycle batteries can be worth 20 to 30% or less.

Add roughly $1,500 to $2,500 you would otherwise spend on a fresh install for racking, cabling, switchgear and labour, because those costs do transfer to you with the system in place. That is genuine value you are inheriting.

Step Three: Compare to a New System

Run the numbers against a brand-new equivalent install. Use our Solar System Cost & ROI Calculator to model what a new 6 kW or 8 kW system with a similar battery would cost you today, fully installed, with current panel and battery technology. If the buy-out price is materially less than 50 to 60% of that new-equivalent number, and the gear has decent years left in it, the buy-out is probably worth taking. If the buy-out is closer to the cost of a brand-new system, walk away and put your money into new kit with fresh warranties.

Step Four: Get an Independent Quote

This is where many homeowners save themselves thousands. Get three independent quotes from vetted NZ installers for two things:

• A new like-for-like replacement system.
• A condition assessment of the existing SolarZero gear, including battery state-of-health if possible.

Armed with that, you walk into the buy-out negotiation with real numbers, not vibes.

What This Means for You

If You Are the ROI Pragmatist

Treat the buy-out as a pure capital decision. Calculate the lump sum required, subtract the monthly fees you would otherwise pay over the next 5 to 7 years, and compare that net cost to the realistic depreciated value of the kit plus the savings you will keep. If the buy-out price implies you are paying full retail for 5-year-old gear, decline and either keep paying monthly (if the contract allows) or move to a fresh install. Payback only works when the entry price is honest.

If You Are the Tech-Savvy Optimiser

Owning the hardware unlocks the things you actually care about: switching to a dynamic-tariff retailer (Octopus Energy NZ or Ecotricity for example), wiring in smart EV charging that prioritises solar surplus, and replacing the inverter with a hybrid model that talks properly to your home. Under a service contract, these upgrades are usually off the table. Buy-out value, for you, is partly about regaining technical control. Just make sure the existing inverter and battery do not lock you into a closed ecosystem that cancels the benefit.

If You Are the Eco-Conscious Family

Ownership extends the useful life of hardware that already exists, which is the most carbon-efficient outcome. New panels carry embodied emissions; reusing what is on your roof avoids that. If the buy-out figure is fair, taking ownership and extending the system's working life is usually the greenest path. Just make sure the battery chemistry is one you are comfortable with for another 5 to 10 years on your home.

Common Pitfalls and What Sellers Will Not Volunteer

The buy-out process is not always adversarial, but it is rarely fully transparent either. Watch for these.

• "Discount off remaining payments" framing. A buy-out priced as a fraction of your remaining lease payments has nothing to do with hardware value. It is a cashflow calculation that favours the seller. Reject the framing and ask for a hardware-value breakdown.
• Vague warranty position. If the seller cannot tell you in writing which manufacturer warranties transfer to you, assume none do. Price the system as if it has no warranty cover and budget for inverter replacement within 5 years and battery replacement within 5 to 8 years.
• Battery state-of-health hidden. A 5 kWh battery that has lost 30% of its capacity is worth dramatically less than a new one. Ask for the most recent battery health report. If they refuse, assume the worst.
• Removal-cost threats. Some buy-out offers come with a "if you decline, we will charge $X to remove the system" line. Removal costs are real, but they should never be used to coerce a buy-out above fair value. Get the removal cost in writing too, and check it against an independent installer's quote.
• Roof penetration responsibility. Whatever you decide, get clarity on who is responsible for any future roof leaks at the mounting points. If you buy out, that becomes your problem; price accordingly.
• GST and invoicing. Make sure you receive a proper tax invoice in your name for the buy-out, listing the equipment serial numbers. This is essential for insurance, future resale of the home, and any warranty claim that does transfer.

If you suspect the contract terms themselves were unfair, or if the buy-out negotiation feels coercive, read our companion guide on SolarZero billing disputes and your rights under the Fair Trading Act. The same consumer protections that apply to billing apply to buy-out conduct.

After You Buy: What Changes the Next Day

The moment the buy-out completes, several things shift onto your shoulders.

Insurance. Notify your home insurer that you now own the solar system. Many policies cover roof-mounted PV under the standard dwelling sum if disclosed, but some require an itemised addition. Get this in writing within a week.

Retailer relationship. If your electricity buy-back was previously tied to the SolarZero arrangement, you may now be free to shop the market. Compare retailers, and check our broader resources on choosing the right plan once you own your system. Switching retailers post buy-out is often where the biggest ongoing wins sit.

Warranties and servicing. Map out exactly which warranties cover which components, who to call for each, and what the call-out cost looks like. Our guide on warranty and servicing after SolarZero covers this in detail.

Monitoring. Make sure you have direct login access to whatever app monitors the inverter and battery. If the previous account was held by SolarZero, you will need fresh credentials. Without monitoring you will not notice a fault until your power bill jumps.

Frequently Asked Questions

How much should I expect to pay to buy out a SolarZero system?

It depends on system age, size and battery condition, but the realistic NZ market range for used residential solar with a battery is roughly $1,500 to $8,000. Systems without a battery, or with a small ageing battery, sit at the lower end. Premium recent installs with healthy batteries sit at the higher end.

Do I have a legal right to buy out my system?

It depends on your specific contract. Many SolarZero agreements include a buy-out clause with a formula or process. Pull out your original contract and look for "purchase option", "buy-out" or "early termination". If the contract is silent, you can still ask, and the current administrator may agree on commercial terms.

What happens if I refuse the buy-out offer?

Generally the existing service arrangement continues under whatever entity currently owns it, with the same monthly fee. The other option is to let the contract run to its end and request system removal, but check the removal-cost clause carefully before assuming that is the cheaper path.

Can I finance the buy-out?

Yes. Several NZ banks offer low-interest green loans for solar that can be used to fund a buy-out, not just a new install. Talk to your bank or check current options through our green finance pathway. A buy-out funded at 1% interest can be very attractive if the hardware value is genuine.

What if I am told the equipment is "not for sale"?

That is the seller's negotiating position, not necessarily the final answer. Put your buy-out request in writing, name a fair figure based on independent valuation, and keep records. If you continue to be refused and feel the conduct is unreasonable, contact the Commerce Commission or Consumer NZ.

Does the battery warranty transfer to me?

Sometimes, sometimes not. It depends on whether the manufacturer warranty was issued to SolarZero (the previous owner) or to the end-user address. Get the answer in writing before you sign the buy-out. If the answer is unclear, price the system as though the battery has no warranty.

Will buying out the system increase my home's value?

Owned solar generally adds value or shortens time-on-market when selling, whereas a service contract attached to the property can complicate a sale. Most NZ real estate agents will tell you a clean, owned system is easier to market than a contract a buyer must assume.

How long should the buy-out process take?

From first written request to completed transfer, expect 2 to 6 weeks if everything goes smoothly. Allow longer if you are getting independent valuations and finance approval. Do not let yourself be rushed by "this offer expires Friday" pressure; a fair offer holds for at least 30 days.

What if my system has faults or is underperforming?

Get those documented before you buy. Any known fault should reduce the buy-out price, or be repaired by the seller before transfer. Do not inherit somebody else's broken inverter at full price.

Where to Go From Here

If you are leaning towards a buy-out, the next three steps are: pull your contract and identify the hardware, request a written buy-out figure with warranty detail, and get an independent installer to value the system and quote a new equivalent. That gives you the three numbers you need to make a sensible call.

If the buy-out maths does not work, or the seller refuses to engage fairly, the alternative is a fresh start with new gear and fresh warranties. Either way, getting three independent quotes from vetted NZ installers is the cheapest insurance policy you can buy. The quote process costs you nothing and arms you with the real-world numbers that turn a buy-out negotiation in your favour.

For the wider picture on rebuilding after the SolarZero collapse, the SolarZero recovery resource pulls together every guide in this series, including billing rights, warranty pathways and what to do next.