 I'm really happy to be here to talk about it. I always claim that I'm a little bit nervous. But you should be that, to be a little bit on edge, on toe, to give a presentation. But today I've actually learned that it's not nervousness. It's excitement, right? I'll talk a little bit more later about the first, the S word at the first one in the title, the non-mentionable word here, which is very close to my heart. So I'll explain why that is important also for us. Direct solar power, the meaning of that is that anything that we can do directly during day time with solar power, which is the most efficient way so you don't have to store NED batteries and stuff like that, we are pumping water doing that. We are now using more and more fridges on direct solar power. This was looking into oxygen provision, and I'm just starting up a project also on air conditioning using direct solar power. So that's also close to heart. But the oxygen, the medical oxygen, it's said to be the world's most used drug. And it's used for many different conditions. And in the developed world, it's always available through a hole in the wall in the hospitals, as you know. Nothing strange. In the low and medium income countries or the world, it's very often not available at all, especially in places like rural Africa. In a campaign on oxygen access now, it's been pointed out that one of the main problems with this is that a lot of children die of severe pneumonia, many of which cases could be actually helped with oxygen access. And UNICEF and World Health Organization estimate that around a million children die of pneumonia every year, a lot of that preventable. So in a way, it's a big failure for medicine access in the world that we are dealing with here. In MSF, we do have oxygen available in projects, at least in hospitals and in emergency interventions, not necessarily in our outreach health centers or in the cars where we transport severely ill patients. The primary way we supply it is through the small oxygen concentrators that you all who have been to a field project know about. Original developed for home use in the developed world, but now very, very good to supply oxygen also in field projects. It's being used, the use has increased exponentially over the last years. And you see ordered out APU means what's ordered annually through Amsterdam Procurement Unit. So this is for one of the five sections in MSF. Even that is increasing exponentially. And so is the cumulative availability of concentrators in the field. So based on that, we estimated that maybe there's around 3,000 of these concentrators running across the movement. The way we run them today, they require constant electricity. That's the way they work, which is no problem in the developed world. In the places we are, it may be a problem. But for us, we normally supply them with electricity from diesel generators. Most of the time, they are run on generator power because the power grids where we are are nonexistent or dysfunctional often. The running cost is relatively high, as you can see here. Concentrator only costs about 1,000 euros to buy, but it can cost up to 3,000 euros per year to run it, only in diesel cost, only in fuel cost. Still, this is not a big problem for MSF, of course. But I do think we should talk a little bit more. And maybe after yesterday's session on global warming, we can talk a little bit more about this issue also. But even more important, I think it is that we talk about what we leave behind when we close projects. What's the possibility to keep running anything afterwards? 3,000 euros per year is probably the total budget for a small rural hospital in somewhere in Africa, or at least close to it. So it's not doable. So this is really the sustainability issues I want to talk about. The last one being social and economical sustainability, the first one being environmental. And I do think we should tackle that better than we do. So the background for the SOX project and the objective you can see there, to find a solution for medical oxygen generation using direct solar power during daytime. And then store the oxygen as gas somehow for nighttime use, which would be an efficient way of doing it. The background for it is that I was tech log logistician in a small rural hospital project in DRC in Congo in 2016. It was my first mission. And having been there, trying to figure out how this was working for two months, the section in Amsterdam decided that it's time to close down the project. And that was, of course, a bit of a shock to us being there and knowing all the needs around. But luckily, there was a very good MOH, Ministry of Health, Hospital Director, who was willing to try and continue operations. But beside the medicine that we were going to donate, he did need a little bit of electricity to be able to run lights, some cold chain facilities. And we pinpointed oxygen supply as very, very important here. There's no way of getting that otherwise. It's extremely remote. So I managed to convince the headquarters through the project, the mission, and then the headquarters in Amsterdam, that we install a small solar power system. And we managed to do that in the four months we were still in the project and had it up running just before we left. And that's when I started thinking about the oxygen supply, because today normally, as I said, we run them on generator power. It consumes a lot of diesel. Today, in Shawana, it's done with solar power. But one small concentrator required 10 big solar panels and 12 of these 12-volt relatively big and heavy batteries to be operational for 24 hours always. That's expensive. And the problem is that you have to replace the batteries with a certain interval, maybe two to three years, which would cost still 1,000 euros per year to do. So it's still very difficult. It works, but it's still very difficult. The idea was that instead, if we could produce more during daytime and then store it as compressed gas for nighttime use, and what the project wanted to find was the question mark in there. What was the unit that could do this local production and compressed storage of oxygen? And we knew that there were things for it. I had found on the web, but it turned out to be very, very difficult to get it. They are very expensive equipment because they are small series. The ones we knew could not even be delivered in time for this short six-month project because they are very, very small series equipment and also very expensive. So the solution that we came up with for testing was a lower pressure storage, i.e. more bulky storage, i.e. more bulky storage, but easier to achieve. So this is the test phase of the project. OK, there's a P disappearing. Never mind. It says set up at EBC, which is the Espace Bruno Corbe in Brussels, a test center. The power solution is normal solar panels, but slightly differently set up than you're used to. We wanted to get as many hours of production as possible out of it, so we oriented half to the morning sun in the east and half to the evening sun in the west to get a little bit more time for production. Solar panels themselves are relatively inexpensive. So you can sort of over dimension that a bit. And then the production and storage solution delivered by a fantastically innovative and nice little UK company called Diamerica. They already had a storage solution, not packaged like this, but the tanks, the compressor, they had been looking a little bit into solar power, which no other manufacturer in the world, I would say, had done. So they put this together as a prototype, sent it to Brussels, and we could test it and verify that it would actually work. Testing in Brussels has its problems. There is sometimes sunshine, as you see on the picture, but most of the time not. But we could still verify that this with some adjustments would work. So after the tests doing calculations on this, I put together this table of, in a way, conclusions. Starting at the bottom with the standard solution today, you see that running on generator, not counting the generator cost, because we would have that anyway, probably, is a very low investment, but a very high running cost. Then going to the Shimana solution, slightly higher investment, but a lower running cost. Then the high pressure storage solutions that exist, but are never run on solar power, that are much more expensive, very low running costs, but we couldn't get to test them. And then at the top, you see the low pressure storage solution that we actually tested. And calculating over three years of operation to compare these different solutions, you see that we actually end up at around the same total cost for 10 litres per minute, continuously 24 hours per day. Same order for the standard now, the one on batteries, so it's not a bad solution, we're testing a little bit. And for the low pressure system. So the final recommendations from the project was that to keep developing this, because you need a pipe distribution system for the oxygen to the patients, which is interesting anyway, not to have the concentrators all around the wards, partner with a supplier to solve some remaining issues, perform a field test which could probably even be shop, i.e. delivering to patients. And in combination with that, also hopefully test a high pressure solution. It stopped there because it wasn't mature really in the organisation to take it further and the companies maybe not really mature. I'm still hoping it will go to further development and use in MSF. But in a way, that illustrates that innovation processes are not just a linear process where you will go along and you can plan that, we will do this in six months or a year. So now it's on hold. But to really show you something that has been successful, I will try to, if I have time for a two minute video. Thank you. Introduce you to the doctor in Shawana, this is the doctor Dadi. He's still there. I didn't realise really when I was working with this that this was an innovation project in itself. But we only have less than a handful of running facilities on solar power and this was the first one ever done for a handover in MSF. So please meet doctor Dadi. This is a hospital that was built and also equipped by the without-frontier doctors in Holland since 2006 that they worked here and they left in 2016 towards the month of August. And this hospital has remained in the hands of the government as it is now a structure of the state and under the government as it is now, as all the health structures are done. We are going to start with intensive care. We are here at the level of intensive care and with children who are under oxygen our concentration of oxygen is going well and they have also followed the maintenance with the arrival of the parents here who have seen that the device is still well preserved and it is well maintained too for the child who comes with a problem of breathing or someone who does not have a lot of oxygen saturation. This is our room of the solar system. We are here in the best conditions. They have the light all night. They have the oxygen. We can operate whenever we want because we have the light regularly and all of this works perfectly. It is not like the normal hospitals in Congo? No, there are many hospitals in Congo where we operate with torch lamps. You operate with torch lamps. There is not even this. There is no oxygen concentration but the doctors are confronted with this donor. That is what you have done. Every month, it is a hospital very far away from our country here. Thank you. I am actually still the tech log in Chamwana very remotely and privately. These are the special thanks. Some of these people are actually here today but I did not write the names. Thank you so much.