Water heating can use up to 50% of your power and 100% of your gas. Imagine the savings over 25 years if heating was free from the sun. With OneEnergy's new solar electric hot water heating technology (learn more) it’s now affordable to all Kiwis.
Cut Hot Water Power Usage by up to 90%, allowing the system to pay for itself with the savings under 5 years.
Enjoy a no-noise, no-maintenance electric solar water heating system that requires no plumbing changes. It’s the sensible solution.
No need to touch your plumbing or heating element, our electric solar hot water heating system works with your existing hot water cylinder seamlessly.
Easily track your solar heating water system performance and energy savings with smart monitoring, so you always know the value you’re getting.
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By switching to solar hot water heating, you actively reduce greenhouse gas emissions while supporting New Zealand’s sustainability goals.
Reliable even during power outages, our solar water heating system ensures you have hot water whenever you need it, independent of the grid.
One Energy's revolutionary approach to solar hot water heating makes it easier and more affordable than ever to transition to solar energy, right across Aotearoa.
Submit you contact details and we'll be in touch to take the first step.
We'll provide a custom proposal showing the layout of the panels and your solar heating water energy savings.
After you approve the proposal, our expert installation team will handle everything from start to finish. With an installation done in under 3 hours, you’ll have a reliable solar hot water heating system with immediate savings.
With your new One Energy system, you can enjoy lower energy bills, a reduced carbon footprint, and dependable hot water year-round—even on cloudy days.
Our team is here to support you after installation, ensuring your system continues to work at its best. We’re just a call away if you ever have questions or need assistance.
In February we had the OneEnergy system installed in our house...
The OneEnergy installers fitted the system in under 3 hours and we are amazed with our savings....
We use hot water conservatively in our house, and the OneEnergy system shows us exactly...
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Let’s make the sun work for you! Whether you’re interested in solar water heating for your home or dairy farm, our team is here to guide you every step of the way. Together, we can create a future where everyone enjoys the benefits of clean, affordable energy.
A full installation in an average household will have an expected payback of under 5 years, and your panels will produce electricity for more than 25 years - that's a great return on investment of almost 20% .
Absolutely not, the system is owned outright by you to enjoy the benefits of solar hot water heating powered by the sun for many years.
Yes. If there is not sufficient Solar heating, the system will automatically top-up with grid power to make sure you are never without hot water
Yes, with our advanced technology, you can heat any hot water cylinder directly from the sun’s energy, reducing your reliance on traditional power.
Yes, during grid power outages our system will continue to use all the electricity available from the Solar Panels.
We will supply and install 6 premium solar panels rated by manufacturers to produce more than 2.7kW peak, covering about 12 square meters of sunny roof space.
Grid-tied systems are solar panels that are connected to the power grid. If homes do not use all the solar power generated during the day, then Energy Retailers will purchase the excess solar power from you. Beware that Energy Retailers will pay you less for your solar power than what you pay them for power, so the key is to self-consume all of your solar generation during the day. Also beware that as more homes adopt roof-top solar, the Energy Retailers will pay less and less to buy your excess solar power – Australian retailers are now paying close to 1c per kWhr.
One Energy’s Sol•Flare controller is grid-boosted but not grid-tied. Our system does not need to be grid-tied because you will self-consume almost all of the solar power generated by heating Hot Water – using your Hot Water Cylinder as a giant battery. Cleverly, the Sol•Flare controller is grid-boosted to still use your mains electricity on wet days or overnight to assist with topping up your hot water whenever required.
You could save up to 90% on water heating costs, depending on usage, and for average households this could be as much as 50% of your home's annual power bill.
Our system uses any existing hot water cylinder and the electricity from solar PV (photovoltaic) panels, whereas traditional systems use plumbed water circulation. Our approach is more cost-effective, simpler to install, more efficient, and maintenance free.
Our system uses premium Solar Panels that are supplied with a 25-year manufacturers warranty. Our Sol•Flare controller, manufactured in Europe by our technology partner my-PV.com, has a design life of more than 15 years and is supplied with a 5 year product warranty.
Our system is compatible with all electric hot water cylinders, so if you replace your hot water cylinder our system will continue to work without interruption - however you should notify us of the change beforehand. With our industry partnerships we can also provide you with a great price to replace your hot water cylinder - please Get In Touch.
Yes, you can relocate your system, though it may be more practical to leave it behind and install a new system at your new home.
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