Launching the Windfall Battery

When we started, we had one goal: give renters and people in flats the opportunity to reduce their bills with a cleantech product.

After months of work, we're excited to announce that pre-orders are now open for the Windfall Battery.

What is the Windfall Battery?

The Windfall Battery works by charging up with cheap, clean, off-peak energy, and then during the peak times it puts that energy back into the home to power whatever's on at the time.

It’s designed to seamlessly fit into any home, and is super easy to use.

  • Save up to £250 a year and reduce your carbon emissions

  • Plug-and-play setup gets the battery working in minutes

  • 2.5 kWh - perfect for flats and smaller homes

  • Automatically works with your energy tariff to start saving you money on day one

You can see more details about the battery on the product page here

How can I get one?

Our first manufacturing run will be a limited 100 units, and right now you can secure one of them with a £100 deposit.

  • Pre-order perk: limited price of £1,000 (RRP £1,200)

  • £100 deposit now and the remainder when we ship later this year

  • Shipping Autumn 2026

  • Join the founding team with insider updates on manufacturing and exclusive behind-the-scenes access


The world is evolving and this is the beginning of a new category of products.

We’re looking forward to getting these out into real homes all over the UK.

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