 Thank you very much for having me here today. I think I'm going to talk about something a little bit different. It's still concrete, but you'll see it's quite different first in the application and then in the shape, let's say. So I'm going to talk about CSP, which is energy and molten salt. We'll get to what these things are. Probably you know, but I'll make a brief explanation of CSP, concentrate the solar power, how it works, and why these kind of tanks I'm about to talk are so important. So this is how a concentrated solar power plant works when there is no storage. In the upper side, you can see how we have an HTF, which is a heat transfer fluid that gets heated by the sun in the solar field. And then it goes to a heat exchanger where it heats steam that will later generate electricity. So the thing is that when it's cloudy or at night, we are not able to generate any electricity this way. So this is not quite a very reliable way of creating energy. So no sunlight, no power. Then what we can do and what it's already been implemented is some concentrated solar power plant. It's storing this heat. This heat can be stored different ways. But when we are generating electricity from the heat of the sun, we can store that heat using a different kind of heat transfer fluid. Instead of the regular transfer fluid that goes up to 400 degrees Celsius, we can use molten salt. This molten salt is usually made of potassium nitrate and sodium nitrate, which are salts. They are usually used in the fields to make plants grow better. Well, there is a word for that. But so the thing is that these salts are very corrosive. They melt at 280 degrees Celsius, so we have to keep them above this temperature if we don't want the plant to collapse. Also, these tanks that are usually used nowadays, there are two tanks, one for the hot salt, another one for the cold tank. We get the salt flowing in one direction when we have sun. But when we don't have sun, we make it flow in a different direction. So it goes from the hot tank to the cold tank. In the heat exchanger, it will heat the heat transfer fluid, so it will heat the steam, and we'll still be able to generate current, I mean, to generate electrical power. So what we can see here is that at nighttime, for some time, we were able to generate electricity. And when it's cloudy, we can generate electricity, too, which is a way more reliable way of making electricity. Well, this setup doesn't work very well. It's not very efficient anyways. So right now, we are working, me, my company, I met with another 13 partners in bringing this one step forward with this new concept of plant, for new plants and for existing plants. In the upper side, we will see, I mean, we can see what it means for new plants. We'll have a single tank instead of two tanks. And in this tank, we have a thermal plant of temperature where we have the hot salt in the top and the cold salt in the bottom. So we only have one tank. We will store their energy. And we will use only this heat transfer fluid. We don't have another one. So we can go to upper temperatures, increasing the efficiency of the plant up to 550 degrees Celsius. We only have also one heat changer, so it's more efficient. For existing plants, what we propose is to increase the storing capacity with a concrete module, which is right there. Well, that will make, I mean, when the hot salt tank is empty or the cold salt tank is empty, it will heat the energy in the concrete of the concrete module. I will explain a little bit more how this concrete module works in the following slide. So this is what we are working on with these other partners. This is a 2020 project called New Soul. We are developing different kind of technologies. We are quite in a high TRL level, and we are about to make a demonstrator with our final stage developments. So for the concrete module, we'll work in an ultra high thermal performance concrete that can store the heat. So we don't only store the heat in the salt. We'll also store it in the concrete. Then the salt won't be regular and potassium nitride and sodium nitride salt will go in something more advanced than that that can go in lower melting temperatures and higher operating temperatures. Also, since the molten salt, I mean, depending on the composition you use, if you start putting, I mean, let's say, in 50 years, you start putting CSP plants where it's efficient, let's say, southern Spain, southern Portugal, Italy, Greece, that's in Europe, then you have the rest of the world. Then if you start putting this kind of storage, you'll end up finishing the materials, the raw materials for the molten salt. So we need a filler material that will make, I mean, will work also as storage. And finally, that funny thing that looks like an elevator, it's encapsulated phase changing materials that can get energy when they solidify, I mean, thermal energy, and will release energy, thermal energy, when they melt. So we'll put them up and down depending on where the thermal client is, and we need, I mean, and if we need more energy, or we need less. For the model, it's way more simple. We'll only have these pipelines embedded in concrete. In the pipelines, the molten salt will flow in one direction or in the other direction if we want to put thermal energy inside the concrete, again, a high thermal performance concrete, or if we want to get the thermal energy from the concrete. So also what we will do, since this is quite difficult technology to work with, because the temperatures are so high, also if the molten salt leaks, or if it solidifies, it can make the whole plan to collapse, we are working in an embedded monitoring system to, well, with two different objectives. In the first objective, inside the project, let's say, we want to assess the thermal performance of materials. I mean, we are developing new materials. We want to make sure they work fine. In order to increase the energy efficiency of the system, also knowing where the thermal line is. For example, if it's one meter lower or higher, it will make the system more efficient. And of course, we also want to know about the safety of the structure, if it's working fine, if we already have cracks, if it's about to collapse, and these kind of things. So this is a little bit schematic of the monitoring system that we are working at. We'll have point sensors for temperature and strength in the different concrete layers. Here, there is a concrete layer of missing, which will be the structural concrete, but we'll have also monitoring in that one. Then inside the molten salt, we'll measure the temperature. We'll have the temperature profile along the tank. So we know where the thermal line is. And we also will measure some way or another the temperature inside the PCMs, the phase changing materials. We have to work hard on that. So we know if they are solid or liquid. For the concrete module, it's quite more simple. We'll have temperature sensors and strength sensors. We won't get in contact with the salt. And of course, the inlet and outlet temperatures. So we know the flow of the temperature of the fluid. Well, how are we going to do this? Well, what we need here is a monitoring technology. That's what our partners have asked us. Because being a new technology and that has this, I mean, it's so corrosive and we work at so high temperatures, we need something to make sure that it's working fine. Also, since it's a new project, a new technology, we need to put a lot of sensors. We want to make sure that everything is working fine. So we need multiplexing. And we need to work at high temperatures with corrosion. So our solution for that has been fiber optic sensors. And now we are going to start. I mean, I'll go to the face of the project. But we're going to start developing the actual sensors that we'll work finding in this environment, which are not commercially available, unfortunately. So we'll work in molten sun temperature profile intact depths, concrete embedded temperature and strain sensors. And also we'll have to work in the network of the sensors and the interrogator because the interrogators commercially available nowadays. Working in such a big range of temperature, which ranges from 200 and something to 550, won't work fine with many sensors. We'll be limited in that. And here you have a picture of our preliminary research where we were able to measure temperature in the different ranges inside the molten salt. Approach for implementing formal value of information analysis where this is we are at a very early stage at the moment. I mean, this project started right this January. So right now I'll put it in the next slide. But we just finished the framework to start the work in the project. We have to put 13 partners together in this, which was kind of hard. And we defined this key performance indicator as a first step to focus later on the value of information. The first two key performance indicators relate to the sensing technology only, which are the number of sensors that we can multiplex. Well, what we want to go is 500 or more with the same network, which is kind of hard in this environment. And then we'll also evaluate the temperature and strain sensor reliability by seeing how many survive after we make a demonstrator. And it worked for three months. The demonstrator, I didn't talk much about that. It will be for the module and for the thermo-client tech for both in a facility by the University of February where they have all the technology necessary to make the demonstrator in this area. And it will be a 1,6 scale. It will still be like six meter high. It will be quite a big demonstrator. And finally, we want to quantify the savings due to the monitoring systems. These are the preliminary key performance indicators. We want to see after three months what are we able to measure, what are we able to detect, and what is the cost associated with getting this information, right? But inside this project, we'll update the key performance indicators during the project. So I mean, there's still a lot to be done. Finally, the current status. We are in June 2017. We have the framework to start the project. I mean, we are not in June. The first of June, we'll have the framework. And the thing is that we still have many things to do because the demonstrator will be done in 2019, September. We'll have to do many developments still. So open questions. Well, first of all, it's not only about the circular performance. That is the value of information. We also have energy efficiency to take into account, which is also related to other areas where you work, as we interpret, I guess. And I guess I'm out of time. So that will be all. Thank you very much for your attention. It looks like the main of the project. And the experiments started in 2019. This is the start of the period for serial decision on that. Yeah. OK. Thank you very much. I could not read very well your previous slide. Sorry. But not the previous one. OK. It's difficult to read. Oh, sorry. You mentioned that temperature and sensors with the ability to explain sensors with the ability is 90%. 80%. No, no, no. Sorry. I want 80% of the sensors to survive after three months. After three months? Yeah. And why they cannot survive? The thing is that the temperature ranges that we were working on. It's too high. It's very high. Yeah. And we are putting 500 sensors. Yeah. One last thing. And I think I have to put this about the acknowledgement. So thank you.