 So here's the sun curtain right here and hi, so who are you? Hello, I'm Stephen Hildebrand from Sun Curtain and we present here our Sun Curtain. We're using organic photovoltaic as a shading element for our curtain, means if the sun comes we produce energy with our shading system. So this energy which we produce with the sunlight we can use to charge a battery system which we also provide or we can fat the energy directly into the grid. So we can use the energy in other rooms for example for the fridge or to power the light. You can even flip the curtain in the side of where the sun is, right? And thanks to the technology the angle is not so important for producing energy. It's a big advantage. So it's just... It works like a curtain in general. It's hand-powered. Hand-powered, this one, yes. You could have it automatic also. Sure, it produces enough energy to power such an automatic system but it generates much more power than just to power this one. Can I touch? Sure, sure. So what is the material? How do you do this? Is this your tech? Yeah, that's not my tech. For this we have a supplier called UpWheels and they are the producer of the organic portable tech. And you can see it's semi-transparent means the sunlight can pass the curtain and so the room behind the curtain can bright enough so there's no need to switch on artificial light. What's the efficiency? Is it pretty good? The efficiency per square meter you can say 40 to 60 watts depends on the color of the curtain. We offer four different colors, here is green, we also have blue, gray and red, at a degree of the transparency. How long is the last? Is it something you have to change every three, four, five years? It depends on the use case but at the end it's important if you want to power your charging system to power, to charge your mobile so it's important that it is possible. So if one thing is broken or so you just can change one thing but the whole thing works. How much is the price? Is there a price or not yet? There is a price but at the moment we produce at how it calls, we produce on demand. So we already have a small batch production but if somebody comes with a request we can do it immediately and because it's hard to say it depends hardly on the sizes of the window and the curtain. 40 to 60 watt per meter squared and are you able to plug it back into the grid of something of the house? Sure, sure. How does that work? Standard? How does it work? All what you need is an inverter. Is that easy? Yeah, it's just plug and play. To install this whole thing takes five minutes. There's no chance you could invert back to a regular power plug in the house? Sure, sure. You can. You can. Yeah, yeah. There's the connection to and with the cable you just have to connect the inverter and then you can fit it into the grid directly. It's quite easy. Any plug at home? For every home. You can use it for every window. Of course you would need it for every window.