New Zealand
What a New Zealand household should know before buying a home battery: the 2026 peak-export rebate, time-varying plans, the default export limit, buyback rates and portable power stations, checked against Electricity Authority and press sources.
- New Zealand
- Regulator and press sources
- Checked 13 November 2026
- The Electricity Authority says New Zealand has 75,000 households with solar and 14,700 with batteries. Solar penetration is low (about 3%, according to one trade report).
- From 1 April 2026, lines companies must pay a rebate when households with solar and batteries export power at peak times. From 1 July 2026, retailers are expected to offer time-varying plans that give a financial benefit for such export patterns.
- Under the Authority's connection rules, lines companies must set a default export limit of 10 kW for straightforward small-scale solar and battery systems (April 2026).
- Buyback rates (what your retailer pays for exports) vary by retailer, so check the current rate before you size a system. A battery lets you use solar in the evening and export at the peak, where the rebate applies.
- We could not confirm GST treatment or any national subsidy for household batteries, and we could not read the Code itself.
Last checked
Figures and rules on this page were checked on 13 November 2026 against the sources linked in each section. Rebates, plans and network rules are still being phased in, so open the linked source before you sign a quote.
How the New Zealand market works
You buy electricity from a retailer, while a local lines company owns the network your home connects to. The Electricity Authority (Te Mana Hiko) makes the rules for the market and for connections, and the Commerce Commission regulates lines company prices. The Authority said in 2026 that New Zealand had 75,000 households with rooftop solar and 14,700 with batteries (RenewEconomy).
New Zealand's grid depends heavily on hydro, which makes dry winters and peak evening demand a recurring risk. That is why the regulator is encouraging households to supply power at peak times.
The peak-export rebate
From 1 April 2026, New Zealand lines companies are required to pay rebates when households export power to the grid at peak times, according to My Solar Quotes (My Solar Quotes). The Authority's rule is meant to reward households whose solar and battery systems supply the network when it needs it.
The same source argues that the rebate will not change much for most homes, because exports are a minor part of the solar-plus-battery picture. A business news site ran a critical piece on the scheme under the title "The rebate that wasn't" (B2B News), which we could not read in full. The sizes of rebates differ by lines company, so ask yours for the schedule before you count on it.
The Authority expects time-of-use plans to be available to most New Zealanders by 1 July 2026, and the regulations require retailers to offer time-varying plans that provide a financial benefit for export patterns that reduce pressure on the network (Eastern Bay News).
14,700
Households with batteries (Electricity Authority)
1 April 2026
Peak-export rebate in force
Connection and export limits
The Authority updated its connection rules so that lines companies must set a default export of 10 kW for straightforward, small-scale distributed generation, such as household solar and battery systems (pv magazine). It had proposed to double the amount of electricity residential solar can supply local networks (Electricity Authority).
Apply to your lines company before you buy. Your installer normally files the application. The Authority says most applications are approved within the required timeframes, but we did not read the data and approval times vary by network.
Buyback rates and self-consumption
The price your retailer pays for exports varies by retailer. My Solar Quotes keeps a comparison of buyback rates (My Solar Quotes); we could not check which rates are current, and we do not quote any. EECA's research notes that New Zealand, like most countries, runs a net metering-style regime for residential solar in which the financial benefits are selling excess energy and offsetting retail purchases (EECA).
Most of the value of a battery comes from using your own solar in the evening instead of buying at the retail price, rather than from exports. Octopus Energy NZ says a home battery exporting at peak hours could earn extra, but the figure it gives is a company estimate (Octopus Energy press release).
GST and incentives
We could not confirm how GST applies to a household battery quote, though prices to households are normally quoted including GST. We also found no national subsidy or low-interest loan for household batteries, and we did not review regional or lender schemes. Ask your installer to show GST on the quote and check with local council and lender programmes.
Outages, storms and backup
Storms and earthquakes can leave homes without power for days. A grid-tied inverter normally shuts down in an outage, so ask for a hybrid or backup-capable inverter and a backup circuit wired by a registered electrician if backup is your goal. A battery cannot run a hot water cylinder or a heat pump for long.
Choose LFP chemistry, install the battery in a ventilated place away from escape routes, and follow the manufacturer's instructions and the electrical code for your installation. We did not review the electrical standards that apply.
Portable power stations versus a home battery
Many New Zealanders search for a portable power station for camping, campervans, baches and storm backup. A power station is a battery with sockets that you can use immediately. It is not wired into the house, does not switch over by itself and cannot export power or earn a rebate.
A home battery is installed by a registered electrician, can run whole circuits and works with rooftop solar and the new time-varying plans. Choose a power station for portable backup of a few devices and a home battery to move solar into the evening and earn from peak exports.
Outside New Zealand
Rules, tariffs and incentives for home batteries differ from country to country, so do not apply the figures on this page to a home elsewhere. We are adding guides for other countries to this section.
Common questions about New Zealand
Do New Zealand lines companies pay for exports at peak times?
Yes. From 1 April 2026, lines companies must pay rebates when households export at peak times. The amounts differ by company, so ask yours for the schedule.
What is the default export limit for home solar and batteries?
The Electricity Authority has set a default export of 10 kW for straightforward small-scale systems. Your lines company can set a different limit in some cases.
Do I need approval to install a home battery?
You apply to your lines company to connect solar or a battery that can export. Your installer normally files the application. Approval times vary by network.
Is a home battery worth it in New Zealand?
Most of the value is using your own solar in the evening, plus any peak-export rebate and time-of-use savings. Whether it pays depends on your plan, rebates and quote.
Is there a subsidy for a home battery in New Zealand?
We found no national subsidy. Ask your installer and check local programmes.
Is a portable power station the same as a home battery?
No. A power station plugs into individual devices and is not wired into the house. A home battery is installed by a registered electrician and can run whole circuits and work with solar.
Related guides
Work out what a battery would do in your home
Run your own numbers through the same hourly model our guides use, then compare the result with what installers quote.