My name is Daniel Kahnel. For the last ten years I've been developing low-tech alternative infrastructure. Basically things people can make themselves recycled readily available materials, which takes care of their basic human needs. This is mostly to do with energy, water and sanitation food. That sort of thing. I'm at a place called Vadaura Labs in the hills of Barcelona, working with the group called CoACT to develop a Pico Hydro Turbine. So a very small scale, but very low cost and portable means reducing electricity from water. Basically, right there. So the whole project has been open source, making things more accessible. Theoretically anybody, anybody, anybody can make the stuff and get access to these resources. There's a bit of optimization is going to start rapidly paying off. So we're going to try again with two different approaches. A basic computer fan, the plan B.5 is this impeller design, which we're going to now 3D print. Okay, let's go. This is the Phase 3 Turbine. It's similar to the previous ones that we tested. I'm going to flip it around direction wise though. So that the water is going to come in from here. So this will be on, so we're going to move it to further down the canal. It's about like a 2.2 meter drop, instead of the 0.9 meter drop, which should give like three, three and a half times as much power overall. So the water's going to come up here, go through here across the top of the wheel and then vertically down. This is going to be horizontal and then the water's going to come up this way and turn the fan in that direction and then pipe it to the plug in here on the floor. Other than that, it's basically the same. So we're going with the unreinforced PCU fan, because it did the best revs. The 3D printed impeller did a good job. In terms it did more torque with less revs. I want more revs with less torque. I don't want less torque, but I want more revs because that needs more voltage, which means less transmission losses. That's tough. Sorry, that's what I didn't worry. Wow, water in some of them looks toxic waste. Water from the Anaya River. wow Holy shit. So fast. There we go. That's going on right here. So, I've reading it 10 apps of this cottonboard wheel, which it should be rated to, times 55 volts. If there's enough power in the full system, that means we could without mounting or damage getting about 500 watts off the system quite easily. If there's enough water flow, but there should be because the full system power of this is about 1.2 to 1.3 kilowatts. So even if we're only going at like 40% efficiency overall, which is hopefully more, that's still like 500 watts right there. So, that times 24 hours a day is 12 kilowatt hours, which is enough to run about 2 thirds of a western suburb at home. Everything here costs about 40 euros. So, like what we've got here in terms of water availability is quite good. We've got this like long vertical drop. We've got like a really solid water supply here. Most situations aren't going to have something quite this good. This is a good situation, but it's also a lot of power. So, in other places, we've got like little streams that come down a couple of heads on an angle. This will do a lot less power, but they'll still do useful amounts of power. Especially if you're camping, making a portable version. Especially if you're living in a developing world, go for south. Then it's funny. Once coming out of this right now, we'll power like, I don't know, like half a dozen homes. In like, developing country easily. And cost less there than here because generally materials are more cheap. This is all very, very standard stuff. The Humble Wheel, not so much. Anything else you can get anywhere in the world. This can get swapped out for a... This can get swapped out for a motorbike alternator or something similar to that, which is available anywhere in the world and will do fairly similar amounts of power and voltage for red. The next one will wire it up. That'll be on these guys here at Halifah to have design assistance themselves. It's going to be like, do what they want it to do. Wire it in and then we'll start getting some numbers of data. And that can be broadcast once this has been going for a while. And as long as it doesn't break, coming will still need to like burn this in. Obviously, I would go like days and weeks and months. But if it does all the holes together, if it does seem like it's a fairly optimized design, then I'll be doing a full 3D and 80 construction tutorial, how to build the thing itself. And then everyone can make one if they want one. So basically this is a very good result. This is a very good result. I'm too happy with this. Alright, let's see. Now we do this. Yeah, pretty easy. There she goes. With the previous test, the propeller was down the bottom and the water was coming down past it. Which is generally how these things are done feels more intuitively like how a turbine should be. With like a pelton or a turgo, like the more usual like 3 meters, 100 meters of head, running a bunch of pipes and having like a jet of water until like it's spinning like turbine wheel. Then you need to put the turbine at the end obviously, because that's where the pressure is at bottom. But that's not how this turbine works. This turbine works by getting as much water moving as quickly as possible. Not like the pressure difference between the start and the end, isn't where the power is coming from. The power is coming from the momentum. So it's more like a wind turbine in principle than a water turbine like a turgo or a pelton.