Eleven Energy

18/12/2025

⚡ We’re now a Smart Tech Partner with Octopus Energy 🐙

We’re delighted to share that Eleven Energy is officially listed on Octopus Energy’s “Works with Octopus” smart tech platform.

Our sodium-ion home battery system now seamlessly integrates with Octopus smart tariffs, automatically optimising when your battery charges and exports energy — all while tracking energy usage and costs in real time.

Unlike conventional lithium batteries, Eleven uses sodium-ion chemistry made from abundant, non-lithium materials, delivering a safer and more sustainable approach to home energy storage.

A big thank you to the Octopus team for supporting innovation in smart, low-carbon home energy.

🔗 Learn more: https://octopus.energy/works-with-octopus/

Find out more about Works with Octopus now

11/12/2025

Is a salt-based battery the future of home energy?
The team at eFixx have just installed and lived with an Eleven Energy sodium-ion battery system — and filmed the entire process from start to finish.

Watch the full review here 👇
https://youtu.be/toOApD0wAtg

In the video they show:
✨ How sodium-ion batteries work
✨ Why they’re safer and more sustainable than lithium
✨ A complete installation walk-through
✨ How the Eleven Energy app manages your solar, battery and tariffs
✨ Real data from winter solar days

If you’re thinking about adding a home battery, or upgrading an older system, this is one of the clearest reviews we’ve ever seen. Sodium-ion is clean, reliable, and doesn’t rely on scarce materials — a real step forward for home energy storage.

Let us know what you think!

17/11/2025

Could sodium home batteries beat lithium in the UK? ⚡🧂

We’ve just featured on Gary Does Solar in a new YouTube video filmed at our studio in Cambridge – and it’s now live!

🎥 Watch here: https://www.youtube.com/watch?v=2KR1jaZ-uuQ

In the interview, Gary talks with Andy Rankin and Neil French about:

✅ Why we chose sodium-ion over lithium for home batteries
✅ How sodium batteries can charge at –20 °C, making them ideal for UK garages and outdoor installs
✅ Safety benefits and an 8,000-cycle, 10-year warranty
✅ Why energy management software matters just as much as the battery hardware
✅ Our integration with EV chargers, heat pumps, Shelly sensors and tariffs like Octopus
✅ Our long-term vision to bring sodium-ion cell manufacturing to the UK

If you’ve been wondering whether sodium is just hype or a genuine alternative to lithium, this video is a great deep dive.

👉 Watch the full interview: https://www.youtube.com/watch?v=2KR1jaZ-uuQ

If you find it helpful, please give it a like, share it with friends, and let us know your questions in the comments.

I'm really impressed with what UK company ELEVEN is doing with sodium-ion technology in their home battery products and I think you will be too!Let me find y...

12/11/2025

🎉 Our friends at Artisan Electrics have just filmed their first ever sodium battery install.
The video covers everything from roof prep and 20 all-black 480W panels (9.6 kWp) to our IP65 outdoor battery enclosures, hybrid inverter with backup power, and the Eleven Energy app setup.
Why sodium?
🧂 Abundant and recyclable
❄️ Works brilliantly in cold UK winters (–20 °C to 55 °C)
🧠 Smart control with Shelly devices and smart-tariff scheduling
Big thanks to the Artisan Electrics team for the walkthrough and clear installer tips.
🎥 Watch the full video: https://www.youtube.com/watch?v=TaL12QyzTUU

Is SALT The Future of Battery Storage?👉 Make sure to check out Eleven Energy for more information - https://bit.ly/4qkvBg9In this video, we take you behind ...

12/11/2025

We’ve just been featured on The Everything Electric Show 🎉

Presenter Imogen Bhogal visited us in Cambridge to take a look at how sodium-ion batteries are changing the way UK homes store energy.

In this episode, you’ll see:
⚡ A 9 kWh and a 36 kWh sodium battery system in action
🏡 Real homeowners sharing their experience living with Eleven’s technology
🧠 Our smart energy management system that helps you get the most out of solar and smart tariffs
💬 Interviews with our co-founders Andy Rankin and Neil French explaining why sodium is the next big thing in clean energy

👉 Watch the full video here: https://www.youtube.com/watch?v=K1h5U8OADdI

Sodium: safe, sustainable, and made for British homes 🇬🇧

Welcome to another episode of The Everything Electric Show! Imogen travels to Cambridge to take a closer look at Eleven Energy's sodium home battery, focusin...

19/10/2025

We had an amazing weekend at Everything Electric Live in Farnborough! ⚡

Our CTO Neil French joined industry experts from Octopus Energy and Just Have a Think on stage to talk about emerging clean energy game-changers, while our co-founder Andy Rankin caught up with Robert Llewellyn to discuss how startups like Eleven Energy are helping drive the renewable heat and battery revolution.

The stand was buzzing all weekend — thank you to everyone who stopped by to learn more about our sodium-ion home battery system, and to our partners Midsummer Energy for sharing the space.

Together, we’re making sustainable energy storage more accessible than ever. 🌍🔋

21/09/2025

⚡ Come see us at the shows! ⚡
We’re taking Eleven’s sodium-ion home battery on the road this autumn:
🔋 Solar & Storage Live (23–25 Sept)
👉 Catch us on the Midsummer Energy stand
Event info: https://www.terrapinn.com/exhibition/solar-storage-live/index.stm

🌍 Everything Electric Farnborough (11–12 Oct, Stand P30)
👉 Demos of our sodium-ion system + smart energy management app
👉 Our cofounders will be speaking on 3 big panels
🎟️ We’ve got 10 free guest tickets up for grabs — message us fast to claim yours!
🎟️ Once they’re gone, you can still use discount code EXHIBITOR20 for 20% off tickets: https://uk.everythingelectric.show/south
Don’t miss the chance to meet the Eleven team, see sodium in action, and learn why it’s the future of home energy storage 💡⚡

Everything Electric FARNBOROUGH offers an electrifying weekend of electric vehicles (EVs) & home energy, family entertainment and more

24/05/2025

At Eleven, we’ve designed our home energy system to be smart, safe and sustainable — making it easier than ever for households to switch to clean energy.

Here’s a plain-English breakdown of how it all works:

🔌 𝗛𝘆𝗯𝗿𝗶𝗱 𝗜𝗻𝘃𝗲𝗿𝘁𝗲𝗿 – 𝗧𝗵𝗲 𝗕𝗿𝗮𝗶𝗻𝘀 𝗼𝗳 𝘁𝗵𝗲 𝗢𝗽𝗲𝗿𝗮𝘁𝗶𝗼𝗻
Our hybrid inverter is more than just a converter. It’s the control centre of your home energy system. It efficiently converts solar energy into usable electricity and stores excess in the battery — all while being purpose-built to work with sodium-ion chemistry, which is safer, more sustainable, and better at handling extreme temperatures than lithium.

🔋 𝗦𝗼𝗱𝗶𝘂𝗺 𝗕𝗮𝘁𝘁𝗲𝗿𝘆 𝗣𝗮𝗰𝗸𝘀 – 𝗖𝗹𝗲𝗮𝗻, 𝗘𝘅𝗽𝗮𝗻𝗱𝗮𝗯𝗹𝗲 𝗦𝘁𝗼𝗿𝗮𝗴𝗲
Each battery pack stores 4.5 kWh of energy – enough to power your washing machine, dishwasher, and more. The system is fully modular: start with one pack and scale up to eight as your energy needs grow.

🏡 𝗢𝘂𝘁𝗱𝗼𝗼𝗿-𝗥𝗲𝗮𝗱𝘆 𝗘𝗻𝗰𝗹𝗼𝘀𝘂𝗿𝗲𝘀 – 𝗜𝗻𝘀𝘁𝗮𝗹𝗹 𝗔𝗻𝘆𝘄𝗵𝗲𝗿𝗲
Our IP65-rated enclosures allow for safe installation indoors or out – including garages, sheds, or exterior walls – thanks to the wide temperature tolerance of sodium-ion technology (-20°C to 55°C).

📲 𝗦𝗺𝗮𝗿𝘁 𝗖𝗼𝗻𝘁𝗿𝗼𝗹 𝘄𝗶𝘁𝗵 𝗢𝘂𝗿 𝗘𝗻𝗲𝗿𝗴𝘆 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗦𝘆𝘀𝘁𝗲𝗺 (𝗘𝗠𝗦)
What truly sets Eleven apart is our cloud-connected EMS platform. Designed in-house, it doesn’t just control your battery – it gives your home an energy strategy.

𝗞𝗲𝘆 𝗙𝗲𝗮𝘁𝘂𝗿𝗲𝘀:
⚡ Smart scheduling using your energy tariff
📊 Tracks energy consumption by appliance
🧠 Optimise export and storage based on your usage pattern
🚗 Prevents your EV from draining your battery
☀️ Controls immersion heaters based on available solar and desired heating schedule
🔐 UK-based data hosting with full encryption
🔧 Installer hub with inbuilt checklists and remote diagnostics

💬 “It’s like giving your battery a brain — and your home an energy strategy.”

We’ve prepared a Google folder with app screenshots and screen recordings so you can see it in action.

𝗪𝗶𝘁𝗵 𝗻𝗼 𝗹𝗶𝘁𝗵𝗶𝘂𝗺, 𝗻𝗼 𝗳𝘂𝘀𝘀, 𝗮𝗻𝗱 𝗶𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝗰𝗲 𝗯𝘂𝗶𝗹𝘁 𝗶𝗻, 𝗘𝗹𝗲𝘃𝗲𝗻’𝘀 𝘀𝘆𝘀𝘁𝗲𝗺 𝗶𝘀 𝘁𝗵𝗲 𝗳𝘂𝘁𝘂𝗿𝗲 𝗼𝗳 𝗵𝗼𝗺𝗲 𝗲𝗻𝗲𝗿𝗴𝘆.