A solar battery lets you keep more of the power you generate, use it after the sun goes down, and stay running when the grid goes down. Greater savings, greater independence, and the confidence of knowing your home is powered no matter what.
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Winter power bills getting you down? Now is the time to take control.
Future Energy’s Solar and Battery Bundle lets you generate your own power and store it. Use cheap solar energy day and night and reduce your exposure to rising power prices.
Lower power bills. Full stop.
Purchase your Solar and Battery Bundle before 31 July and receive a free EV charger. T&Cs Apply
Solar generates during the day. Most New Zealanders use the bulk of their power in the evening. Without a battery, you sell your daytime surplus cheaply to your retailer, then buy power back from the grid in the evening. A solar battery closes that gap, letting you draw on your own solar long after the sun goes down.
Store the solar you generate during the day and use it through the evening, when household power use is at its peak. Without a battery, around 70% of your generation is sold cheaply to the grid; with one, self-consumption typically rises to 70 to 90%, depending on usage and battery size.
When the grid drops out, your battery keeps your essential circuits running automatically. Lights, fridge, internet, key power points, all still on. Storms, planned outages, and unexpected blackouts stop being a problem you have to think about.
Reduce your exposure to rising retail electricity prices, and reduce the sting of high line charges. Or, for households ready to take the next step, opt for off-grid and enjoy total energy independence.
A battery is a long-term asset, not a quick win. It adds a few years to a solar-only payback, then keeps earning across its 10 to 15 year life by turning solar you’d have exported into power you use yourself. How far ahead you come out depends on how you use power, so we size the battery to your home to make sure the long-term numbers stack up.
The newest battery in the Future Energy range, designed specifically for easy retrofit to existing solar systems. If you already have solar and want to add storage without replacing your inverter, Atmoce is built for you.
The household name in home battery storage. The Tesla Powerwall 3 stores 13.5 kWh of solar energy in a compact, all-in-one unit with an integrated inverter, sleek design, and the well-regarded Tesla app for monitoring and control. A strong choice for homeowners who want a proven, premium brand, automatic outage backup, and a system that’s familiar to electricians and inspectors across New Zealand. Learn more about Tesla Power Wall
Modular and scalable. SolaX batteries stack vertically so you can start with the storage you need today and add capacity later as your household changes (a new EV, a heat pump, a growing family). Strong pairing with SolaX inverters for a fully matched ecosystem, and a popular choice for homeowners who want flexibility to grow their system over time. Learn more about SolaX
Premium European engineering with an all-in-one design. Sigenergy systems combine solar inverter, battery storage and (optionally) EV charging into a single integrated unit, controlled by an AI-driven energy management platform that optimises self-consumption automatically. A strong choice for homeowners who want an integrated, intelligent system with everything working together out of the box. Learn more about Sigenergy
Book a free, no-obligation home energy consultation
We'll assess your home's energy use, your existing solar (if you have it), and the right battery for your situation. Same-day quote, no cost to you.
Five technologies that work with your new battery, reducing costs, lowering your carbon footprint, and improving comfort for your home.
Generate your own power and cut your electricity bill from day one.
Warmer winters, cooler summers, and cleaner air for your family.
Drier, cleaner indoor air year-round, with lower running costs.
Switch from a gas or traditional electric cylinder and cut water-heating costs by up to 70%.
Charge overnight on stored solar energy and stop paying at the pump.
At Future Energy, we look at your energy footprint and individual priorities, and provide independent advice on the best solutions.
Residential solar batteries in New Zealand typically range from around $10,000 for an entry level unit through to $20,000 or more for a premium Tesla Powerwall 3 (usually around $14,500 to $16,000 installed). Final pricing depends on the brand you choose, the size of the battery, your existing inverter and switchboard, and any backup circuit work. We'll give you exact pricing in writing at your free home consultation.
Most New Zealand households with solar plus battery save between $1,500 and $3,000 a year on power bills, compared to grid-only power. The exact saving depends on your daytime versus evening usage, the size of your solar system, your retailer's buy-back rate, and the size of your battery. A battery lifts your self-consumption from around 30% (solar only) to 70 to 90% (solar plus battery), which is where most of the additional saving comes from.
Modern lithium solar batteries are typically rated for 10 years of useful life or around 4,000 to 6,000 charge cycles, whichever comes first. Most major brands (Tesla, SolaX, Sigenergy, Atmoce) come with a 10-year warranty covering both capacity retention (usually 70% or more after 10 years) and product reliability. Real-world life often exceeds the warranty, with batteries continuing to operate at reduced capacity for 15 years or more.
Yes, if it's installed with backup circuits configured. When the grid drops out, a battery system with backup capability automatically isolates your home from the grid and powers your essential circuits (lights, fridge, internet, key power points) from stored energy. Whole-home backup is also possible with larger battery sizing. We'll talk through which circuits you want backed up at your consultation so the system is sized correctly.
Yes, in most cases. The retrofit process depends on what inverter you already have. If you have a hybrid inverter, adding a battery is straightforward. If you have a grid-tied inverter (common on older installs), you have two options: replace the inverter, or use a battery designed specifically for retrofit such as our Atmoce battery, which is built to add storage to existing solar systems without inverter replacement. We'll assess your current setup at the free consultation and recommend the most cost-effective path.
Most New Zealand households need between 10 and 20 kWh of battery storage, with around 13 to 15 kWh being the sweet spot for a typical family home. The right size depends on your evening and overnight power usage, your daytime solar generation, and how much outage backup you want. Sizing too small means you miss savings; sizing too large means the extra capacity may not pay back within the battery's warranty period. We'll size yours based on your last 12 months of power use.
The best brand depends on what matters most to you. Tesla Powerwall 3 is the householdname choice, with a sleek app and strong installer familiarity across NZ. SolaX offers modular, stackable batteries that grow with your household. Sigenergy provides the most technically advanced all-in-one system with AI-driven energy management. Atmoce, the newest battery in the Future Energy range, is designed specifically for easy retrofit to existing solar systems. There's no single best, just the best for your situation, which we'll help you choose at the free consultation.
For many New Zealand households with solar, yes, though it comes down to how you use power. A battery is a long-term purchase rather than a quick win: payback typically sits in the 8 to 12 year range, in line with its useful life of around 10 to 15 years. That's why, for most people, the strongest reasons to add one are the things solar alone can't provide: keeping essential circuits running in an outage, less exposure to rising grid prices, and using more of your own solar instead of exporting it cheaply. The case is strongest if your evening power use is high, outages are common where you live, or you want to get the most out of solar you already own.
From green energy loans to interest-free options, we’ll help you find a payment structure that works for your budget. For many households, monthly finance repayments come in below the monthly savings the battery delivers, so you start ahead from month one.
Book a free, no-obligation home energy consultation
We'll assess your home's unique needs, from solar and storage to hot water and heating, to create a same-day quote that maximises your savings.
We work with the world’s leading battery brands and recommend the right one for your home. Tesla, SolaX, Sigenergy or Atmoce; we’ll match you to the battery that fits.
Start with solar today and add a battery when you’re ready. Or add a battery to your existing solar system. Future Energy designs your system so future upgrades integrate cleanly with what you already have.
From first consultation to switch-on and beyond, Future Energy designs, project-manages and stands behind your whole system. One company to deal with, one number to call.
14.5 MW of solar delivered, 290+ five-star reviews, and homes powered across six regions of New Zealand. Real systems, real results, real Kiwi homeowners.
