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Aira Clean Energy tariffs

Expensive & dirty electricity? It’s time for a clean break.

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The natural next step towards even more savings

Aira has partnered with the UK’s most-awarded energy supplier, Octopus Energy, to offer Aira Zero: a 100% green electricity tariff that allows Aira to optimise when your heat pump uses energy to unlock even greater savings and reduce your impact on the planet.


Save up to £560 on your annual energy bills when you switch from a boiler to an Aira Heat Pump and sign up for Aira Zero.*
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Reduce your home heating CO₂ emissions by 100% when you combine your heat pump with Aira Zero.
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Maximise your heat pump savings with Aira Zero

Your heat pump is already designed to reduce your heating bills. But combining it with Aira Zero unlocks even more savings.

Aira Zero allows Aira to adjust your system to heat your home’s water when energy prices are lower and use stored heat and hot water during peak times when energy is more expensive. Reducing your energy costs without compromising comfort. 

Curious to know more? Request your heat pump quote
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How does it work?

Aira Zero is a three rate daily tariff consisting of:

  • A day rate that applies for most of the day and set to your local area​
  • Three discounted periods, each 51% cheaper than the day rate​
  • A peak rate, priced 45% above the day rate ​

By maximising energy usage during discounted periods and minimising it during peak times, your heat pump can save you up to £560 annually on energy bills.

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How to switch to Aira Zero

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Install a heat pump with Aira
You need an Aira-installed heat pump to sign up for Aira Zero. Already have one? Let us know, and we’ll start your tariff switch.Contact us
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Install a heat pump with Aira

You need an Aira-installed heat pump to sign up for Aira Zero. Already have one? Let us know, and we’ll start your tariff switch.

Contact us
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We’ll email you a personalised sign-up link
Once your heat pump is installed, we’ll email you with a link to your personalised Aira Zero sign-up form.
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We’ll email you a personalised sign-up link

Once your heat pump is installed, we’ll email you with a link to your personalised Aira Zero sign-up form.

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Octopus Energy will handle your switch
Enjoy our partner’s award-winning customer service as they handle your switch. If you need a smart meter, they will install one for you free of charge.
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Octopus Energy will handle your switch

Enjoy our partner’s award-winning customer service as they handle your switch. If you need a smart meter, they will install one for you free of charge.

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Start saving even more with Aira Zero
Once the connection has been established, you’ll receive a welcome message in your app to confirm that your system is optimised for the Aira Zero tariff.
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Start saving even more with Aira Zero

Once the connection has been established, you’ll receive a welcome message in your app to confirm that your system is optimised for the Aira Zero tariff.

Already switched to Aira Zero and have a question?

Clean Energy tariffs FAQs
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Aira + Octopus Energy

The switch to an Aira Clean Energy tariff places you in the trusted hands of Octopus Energy – a partner who share our commitment to cleaner energy and exceptional customer service.

Don’t just take our word for it. Octopus Energy is the only energy supplier named Which? Recommended Provider for seven years in a row and boast a 4.8 rating on Trustpilot.

Octopus Energy: Named 'Which? Recommended Provider' seven years in a row
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Aira Clean Energy tariffs FAQs

If you already own an Aira Heat Pump, you can save up to an additional £335 a year on energy bills when you sign up for Aira Zero.

It’s important to note that energy prices and specific tariffs offered by suppliers can fluctuate over time. Additionally, energy bills depend on factors like temperature settings, hot water usage, and overall energy consumption, which are beyond Aira’s control.

Aira Zero works with all heat pumps installed by Aira. If you opt for a heat pump that is not an Aira Heat Pump, once you have signed up for Aira Zero all you need to do is manually adjust your heat pump’s settings to off-peak and peak times via your app or heat pump controller.

You will need a smart meter to benefit from our intelligent tariffs. If you don’t have one, once you sign up for our tariffs, our partner Octopus Energy will install a smart meter for you free of charge as part of the installation process. 

It automatically sends meter readings to Octopus, so they can bill you accurately for the electricity you've used. Until the smart meter is installed you will be on an interim tariff.

When you have successfully signed up for Aira Zero, the new feature will be presented to them via a welcome message in the Aira Home Energy app. Once optimisation is activated, your heat pump's intelligent system will automatically work harder when energy prices are low and conserve energy when prices are high. So you can sit back, relax and enjoy your savings. ​

Only Aira Heat Pumps offer native integration with Aira Zero. Customers with Vaillant or Daikin heat pumps must manually program their systems to adjust the schedule, lowering the target temperature during expensive periods and raising it during cheaper times.

The tariffs we offer in partnership with Octopus Energy are 100% green. This means that the electricity you pay for originates from green sources such as wind, solar and hydropower.​

Octopus achieves this by working out how much power their customers are taking out of the grid annually and ensuring an equal amount of green electricity is added into the system in its place over the year. Not only does this make the electricity you pay for carbon-free, but it helps make the energy system greener for everyone too. 

The time it takes to switch to an Aira Clean Energy tariff varies depending on factors like whether you have a smart meter and your chosen tariff.​

If you require a smart meter installation, the timeframe depends on your location and engineer availability. Octopus aim to install a new smart meter in under 4 weeks.

The transition to Aira Zero begins with switching energy suppliers. The application usually takes about two working days (as long as the application is initiated before 4pm). If you have a compatible smart meter already installed, it typically takes about 14 days to establish a successful connection to the tariff, enabling Octopus to remotely collect readings. 

Once the connection is established, you will receive the T&Cs for Aira Zero, which you have 28 days to accept, or your switch will be cancelled.

When you sign up for Aira Zero, you'll enjoy peace of mind knowing you can cancel anytime. No strings attached. No contract or termination fees.



The Aira Zero rates can be adjusted by Octopus when the price cap is reviewed by Ofgem every three months. As a result, we do not guarantee the rates for any period of time. The price cap for the next periods will be announced by Ofgem on: 25 November 2024 (for period 1 January to 31 March 2025) and 25 February 2025 (for period 1 April to 30 June 2025)

Even if you're on a fixed-term contract, you can still join Aira Zero. 

Check if your current contract has a fee for leaving early as many suppliers charge if you switch more than 49 days before your contract ends. If there's a fee, switching to Aira Zero could still be worthwhile if the savings outweigh the exit fee.

Energy costs includes your electricity bills and the cost of your heat pump hardware and maintenance. Energy bills include electricity bills only. 

Want a clean break from expensive electricity?

Request your bespoke heat pump quote
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