Make your home battery
smarter

Capture AI optimises your battery to boost your savings on electricity costs

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Currently, we are only available in the uk.
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Trusted by 100s of battery owners
No extra hardware required
Built by energy experts in London

Unlock the full potential of your battery

Always charge the right amount

Capture AI predicts your solar generation and electricity consumption to ensure you are making the most of your battery’s capacity – on sunny and on rainy days.

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Buy low, sell high.
On autopilot

Charge when your tariff is cheapest and export when it’s most expensive – without lifting a finger.

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Get paid for stabilising the electricity grid

Earn rewards as grid operators use your battery to balance an increasingly strained UK grid – all in the background.

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Trusted

by battery owners across the UK

Great product
I've been using Capture Energy to manage our battery system for six weeks or so. Whilst the app is new, so far its been very reliable, makes sensible choices about when to charge at off-peak rates and is saving money. The customer service is excellent, prompt responses and coherent answers. Highly recommended.
Paul
Great service
Great service was explained how it worked and what I needed to do and help with that
Tania
Capture paid me grid rewards
Capture are doing what they say - helping the planet and returning some money to those of us who have invested in renewables (solar) - a global win-win! Great to see and support this kind of initiative, I wish you every success as you grow the business.
Nigel
Excellent customer service
Excellent Customer Service! I had a query about the requirements for the Capture system and got a reply from Fahad within 2 minutes!
Rob
Amazing experience from start to finish
Amazing service from start to finish! The guys at Capture were great at explaining everything throughout the process so we really knew how the AI would work itself, and how it would work with our InstaGen battery and Octopus Agile. We are already seeing the benefits, would definitely recommend!
Helena
Boost in export revenues
I was the first customer with a Fox battery to trial Capture Energy, which optimises home batteries for Octopus Energy customers & others. They boosted my export revenue by more than 20%!
Tristan
Extremely helpful
Melchior was extremely helpful, pleasing to deal with someone so polite and knowledgeable. Thank you
Simon
Great product
I've been using Capture Energy to manage our battery system for six weeks or so. Whilst the app is new, so far its been very reliable, makes sensible choices about when to charge at off-peak rates and is saving money. The customer service is excellent, prompt responses and coherent answers. Highly recommended.
Paul
Great service
Great service was explained how it worked and what I needed to do and help with that
Tania
Capture paid me grid rewards
Capture are doing what they say - helping the planet and returning some money to those of us who have invested in renewables (solar) - a global win-win! Great to see and support this kind of initiative, I wish you every success as you grow the business.
Nigel
Excellent customer service
Excellent Customer Service! I had a query about the requirements for the Capture system and got a reply from Fahad within 2 minutes!
Rob
Amazing experience from start to finish
Amazing service from start to finish! The guys at Capture were great at explaining everything throughout the process so we really knew how the AI would work itself, and how it would work with our InstaGen battery and Octopus Agile. We are already seeing the benefits, would definitely recommend!
Helena
Boost in export revenues
I was the first customer with a Fox battery to trial Capture Energy, which optimises home batteries for Octopus Energy customers & others. They boosted my export revenue by more than 20%!
Tristan
Extremely helpful
Melchior was extremely helpful, pleasing to deal with someone so polite and knowledgeable. Thank you
Simon

Connect your battery

FoxESS

Growatt

Other

Frequently asked questions

How much does Capture AI cost?

Capture AI is completely free of charge. We optimise your battery’s charging and discharging on your electricity tariff, and those savings show up directly on your bill and they are 100% yours.

When your battery earns additional revenues in other electricity markets (e.g. local flexibility or wholesale) which your battery couldn't otherwise access without Capture, we take a small share of those earnings. This makes earning these revenues a win-win situation and allows us to offer optimisation on your tariff free of charge.

Does Capture AI work on any battery?

Right now, Capture AI is compatible with most FoxESS, Growatt, and InstaGen batteries. You can start onboarding your system here.

If your manufacturer isn’t listed, please go ahead and submit the form above with your manufacturer's name - this helps us decide which integrations to build next.

How can Capture integrate with my battery?

Capture connects directly to your battery via the manufacturer’s API. That means no extra hardware is needed - we securely manage your inverter and battery.

Do I need to switch supplier to use Capture AI?

No - you can stay with your current supplier. During onboarding, we’ll recommend the best possible combination of import and export electricity tariffs for your system, so that you can maximise your savings with Capture AI.

How much can I earn in grid rewards?

Earnings from grid services depend on your battery size, usage, and which services you participate in. Eligible customers can earn hundreds of pounds per year on top of their bill savings by helping to stabilise the grid. We’ve broken down the different opportunities and earning potential in detail here.

Available on iOS & Android

Download the Capture Energy app on your iPhone or Android for free.