Can you add some more color to this segmentation problem? And what are the specific temperature bands? And what are the issues today in these bands? Okay, so

let's start at the simple bit.

Broadly under 100 Celsius, everybody uses water and it's great.

It's not our sector.

If somebody needs water heating and it's convenient for how we're trying to help them, yes, but it's not where we're aimed.

Between broadly 100 and I would go up to a little bit over 200, but not much more.

Generally, everybody uses steam.

Can you help us to understand in simple terms how it works?

How much of that is currently run with fossil fuels?

Almost 100%.

We go to factories where you walk into these vast boiler rooms with five boilers, each the size of a double-decker bus, burning gas at the most phenomenal rate, and all to do things like brewing beer, distilling, making pharmaceuticals, paper-making, industrial processes.

They all have big chimney stacks, and they run 24 hours a day, 365 days a year.

What would that giant heat battery enable them to do?

I would say a normal sort of factory that's producing food and beverage, maybe two of these.

Maybe a big factory, you might put in four or five of these.

But it would allow them to run their entire steam production on, uh, basically renewable electricity.