Plug-in solar is not legal to use in New Zealand yet, and no confirmed date has been announced for when it will be. If you are asking when plug-in solar will be legal in NZ, the accurate answer today is “not yet, and nobody can name the day”. This guide covers what that means for you now, what would need to change, who stands to gain, and what you can do in the meantime.
A quick disclosure: some links on this site are affiliate links. If you buy through one, the site may earn a commission at no extra cost to you. Nothing here depends on you buying anything, and the advice to wait applies whether or not a link is involved.
Plug-in solar is not legal in NZ yet: what that means for you today
Plug-in solar (sometimes called balcony solar) is a small panel kit with a microinverter that connects to the grid through an ordinary wall socket. You plug it in, and the power it makes is used by whatever is running in your home first. It has become common in parts of Europe, which is why New Zealanders keep seeing it online and wondering whether they can order one.
In New Zealand, a solar system that feeds into your home’s wiring, and so into the network, is treated as electrical work. Connecting it normally involves a registered electrician and approval from your local lines company. A kit designed to go into a power point skips both, and that is why the current rules do not allow it.
For you today, that means:
- Do not buy a grid-tied plug-in kit and plug it into a socket at home, even if the seller will ship it to New Zealand.
- A seller listing a product online is not evidence that it is legal to use here. Overseas shops sell to many countries without checking local wiring rules.
- If you have already bought one, check with a registered electrician and your lines company before using it. Do not rely on a forum post, including this article, for a final answer on your own installation.
The reasons for the caution are practical. A kit that pushes power into a household circuit can matter to anyone working on the wiring or on the street network, and the equipment has to shut itself off safely if the grid goes down. Those are the things a legal framework has to settle before plug-in kits can be sold and used openly.
None of this affects solar that is installed properly. A conventional rooftop system fitted by a registered installer is a normal option today. It simply costs more upfront and is harder for renters.
What is expected to change, and what is still unconfirmed
Interest in plug-in solar is growing in New Zealand, and it is reasonable to expect the rules to be looked at. Expecting a review is different from having a rule change, though, and it is worth keeping the two apart.
For plug-in solar to become legal and sensible here, several things would need to be settled. These are the likely areas, not announced policy:
- A product standard. Kits would need to meet a defined safety and grid-interaction standard, so buyers know a product is safe to plug in. Grid-connected inverters in New Zealand and Australia are generally covered by the AS/NZS 4777 series, and any plug-in rule would probably build on that kind of requirement.
- A power limit. Small kits would probably be capped at a modest output, so household wiring is not overloaded.
- Plug and socket requirements. The connection would need to be safe to touch when unplugged, with the inverter cutting power at the plug end the moment it is disconnected.
- Network notification or approval. Lines companies would need some way to know about small generators on their networks, even if the process is simplified for tiny systems.
- Rules for who can install and who can sell. This decides whether you can set up a kit yourself or need a professional to check it once.
What is still unconfirmed is almost everything that matters to a buyer: the date, the output limit, whether an electrician must inspect the connection, whether renters can use kits without their landlord’s wiring being involved, and which products will qualify. Be wary of any article or video that gives you a firm New Zealand date. If it does not point to an official source, treat it as a guess.
To follow the real position, check the websites of the Ministry of Business, Innovation and Employment (MBIE), WorkSafe, the Electrical Workers Registration Board, and your own lines company. Those are the places where an actual change would be published.
Who plug-in solar will suit: renters, apartments and small budgets
The main appeal of plug-in solar is that it fits people who have been left out of rooftop solar. Rooftop systems suit homeowners with a suitable roof, a few thousand dollars to spend, and the intention to stay for years. That excludes a lot of households.
Plug-in kits are likely to suit:
- Renters. A kit that unplugs and moves with you removes the usual objection that you cannot modify a rented property’s roof or wiring. You would still need your landlord’s consent for anything fixed to the building.
- Apartment dwellers. If you have a sunny balcony or a railing that gets direct light, a small panel or two could cover some of the power your fridge, router and standby devices use. Body corporate rules will matter here.
- Small budgets. A small kit has a lower entry price than a full roof system, so people who cannot spend several thousand dollars at once may get a way in.
- Households with steady daytime use. Plug-in solar only helps when the sun is up and something in the home is drawing power. Someone who works from home, or who runs a fridge, freezer and computers all day, will use more of what the panel produces than someone out from morning to night.
It will suit some people less. A small panel on a shaded balcony, or a south-facing one in the Southern Hemisphere, will produce very little. A household that is empty all day uses little of the output, and whether surplus power is paid for would depend on the rules and your retailer, neither of which is settled. Plug-in solar also will not run your whole house. It trims a portion of your daytime use.
Be realistic about size. A kit of this kind is a supplement to your power bill, not a replacement for it.
Plug-in solar versus a $500 to $1500 installer quote, and why imported panels cost so much to ship right now
Once plug-in solar is legal, the obvious question will be whether to buy a kit or pay an installer. The comparison point used in this article is an installer quote in the $500 to $1500 range. Treat that as a ballpark only. Your own quote depends on the job, your switchboard, your location and the installer, so get at least two written quotes for your own case.
Here is how the two routes compare in principle:
Plug-in kit (once legal) Installer quote Who does the work You, or a professional if rules require it A registered electrician or installer Compliance paperwork Likely simpler, but not yet defined Handled by the installer, including network approval Portability Can move with you Fixed to the property Warranty and support Depends on the supplier Usually a local business you can call back Suitability for renters Better, with landlord consent Usually needs the owner to agree
An installer quote buys certainty. You get someone accountable for the work, the connection paperwork and any later fault. A plug-in kit may cost less, but you carry more of the checking yourself, and its legal status here is currently the biggest issue.
Why imported panels cost so much to ship right now
Shipping is a large share of what a New Zealand buyer pays for imported panels, for reasons that follow from the product:
- Solar panels are large, flat, heavy and fragile. Freight is priced on size and weight, so they are expensive to move compared with their price.
- They have to be packed carefully to avoid cracked glass or cells, which adds bulk.
- New Zealand is a long way from most manufacturers, and goods usually have to travel a long distance and be handled several times before arriving.
- Overseas stores that offer cheap shipping to other countries often do not offer the same to New Zealand.
I have no single shipping figure to give you, because quotes change with the supplier, the panel size and the carrier. Always compare the delivered price at checkout, not the price shown on the product page. A panel that looks cheap can stop being cheap once freight, GST and any import charges are added.
NZ supplier or Australian supplier: price, shipping, warranty, returns, GST and NZ standards side by side
When kits are legal, you will probably be choosing between a New Zealand-based supplier and one in Australia. The same checklist applies to either. This table sets out what to compare, not what any specific supplier offers.
Factor NZ supplier Australian supplier Price Often higher on the product page, but check the full price May look lower, so compare the delivered, GST-inclusive total Shipping Domestic freight, usually shorter distance International freight across the Tasman, with a longer transit time Warranty A claim can be made to a local business Ask who handles a claim from New Zealand and whether you pay return freight Returns Easier to return and inspect Check whether returns are accepted from NZ and who pays GST NZ GST (15%) is normally included in the displayed price Overseas sellers may collect GST at checkout on lower-value orders, but confirm this before paying NZ standards Should be able to show the product meets NZ requirements Ask for proof the product meets NZ requirements, not only Australian ones
A few points deserve more attention than the table can give them.
Standards come first. Australia and New Zealand share some electrical standards, but a product sold legally in Australia is not automatically approved for use in New Zealand. Ask any supplier, in writing, whether the inverter complies with the standards that apply here, such as AS/NZS 4777.2 for grid-connected inverters. If they cannot answer clearly, move on.
Warranty only matters if you can use it. A ten-year warranty means little if claiming means paying to ship a heavy panel across the Tasman. Look at the claim process before you look at the warranty length.
Consumer protection is stronger with a local seller. New Zealand’s Consumer Guarantees Act applies to goods sold by businesses in New Zealand. It is harder to enforce against an overseas seller, so find out what recourse you really have before you pay.
GST can change the comparison. New Zealand GST is 15%. Some overseas sellers add it at checkout and others do not, in which case you may be charged at the border. Either way, the number that matters is the total you pay on delivery.
What to do while you wait: portable power stations, the solar calculator and renter checks
Waiting does not have to mean doing nothing. These are the practical options available now.
Portable power stations
A portable power station is a battery unit with its own outlets. You charge it from a wall socket, and many models can also be charged from a solar panel connected to a dedicated input on the unit. It does not plug back into your home’s wiring, so it is a different product from a plug-in solar kit and is sold openly.
Power stations suit people who want backup power for a few devices, or who want to use some solar energy without touching their home’s electrical system. Check the capacity (measured in watt-hours) against what you want to run, and check what panel input the unit accepts. Be aware that they are a relatively expensive way to store energy, and that charging one from solar does not by itself cut your bill much. The value is in backup and flexibility.
Run the numbers on a proper system
If you own your home, the most useful thing you can do is find out whether a full rooftop system would pay for itself. A calculator gives you a starting figure based on your usage, roof and location, which you can then check against real installer quotes. The Free Home Solar Calculator on Eco TIGA is built for this.
Renter checks
If you rent, prepare now so you are ready when the rules change:
- Read your tenancy agreement for anything about fixtures, balcony use or changes to the property.
- Ask your landlord in writing what they would allow. Hanging a panel off a balcony rail is a change to the property, even if it is removable.
- If you live in an apartment, ask the body corporate or building manager about rules on balcony fittings and anything that affects the building’s appearance or safety.
- Note your sunlight. Spend a few days checking when direct light reaches your balcony or window and for how long.
- Look at your power use. Your bill and your retailer’s app can show how much you use in the daytime, which is the only time a panel helps.
Doing these checks now means you can make a decision quickly when plug-in solar is allowed, instead of starting from nothing.
Plug-in solar in NZ FAQ
When will plug-in solar be legal in NZ?
There is no confirmed date. It is not currently legal to use a grid-connected plug-in kit in a standard power point in New Zealand. Watch MBIE, WorkSafe, the Electrical Workers Registration Board and your lines company for official announcements.
Can I buy a plug-in solar kit from overseas and use it?
You may be able to buy one, but being able to buy a product is not the same as being allowed to use it. Using a grid-tied kit in a socket is not currently permitted, so check with a registered electrician before connecting anything.
Is a portable power station the same thing?
No. A power station is a battery with its own outlets. It does not feed power into your home wiring, so it does not fall into the same category as a plug-in solar kit.
Will plug-in solar suit renters?
It is likely to suit renters better than a rooftop system, because it can be moved. You will probably still need your landlord’s consent for anything attached to the property, and the final rules are not yet known.
Will I be paid for the power I send to the grid?
That is unconfirmed. Small plug-in kits are mainly meant to reduce the power you draw yourself, and whether any surplus would be paid for depends on future rules and your electricity retailer.
Should I wait for plug-in solar or get a rooftop system?
It depends on your situation. If you own a home with a good roof and steady power use, a rooftop system may already make sense, so get quotes now. If you rent or live in an apartment, preparing and waiting is more practical.
How do I check whether a supplier’s product meets NZ standards?
Ask the supplier in writing which standards the inverter and panels comply with, and ask for documentation. For grid-connected inverters, AS/NZS 4777.2 is a standard to ask about. A registered electrician can also advise.
Run your own numbers with the Free Home Solar Calculator on Eco TIGA to see whether solar is worth it for your home before plug-in options arrive.