A highlight from What role will hydrogen play in our future?
Last several hundred gs. That machine has been driven by fossil fuels even the components not directly powered by coal or oil were manufactured using them as we all know the push for. Tentatives is slowly gaining pace. There's sola and this wind but what about hydrogen. It certainly seems to be the energy source of the moment. Probably five years ago no one was talking about hydrogen and now in the last twelve months to two years i think it started to become a lot mall. Popular to talk about hydrogen and also mall common to hear about hydrogen projects being funded. So i think even in the last five years there has been an increase in probably in the loss to us in particular has been some acceleration in hydrogen. I see this as a good news story. I see this as an indication that we've kind of solved the decarbonisation of electrical power undestanding hydrogens role. Now future that's how program today. Hello antony fidel here. Welcome to future tense. So what's driving this sudden interest dr jessica allen. A senior lecturer in chemical and renewable energy engineering at the university of newcastle. It's a combination of factors. I believe so. There's a few countries that are aggressively pursuing hardin. And have been for some time. But they've been in the last couple of years in particular pushing to hydrogen energy and that is south career in japan. So they Majorly invested in increasing uptake of hydrogen energy technology. So that's one part of it but it's also the fact now that renewables in terms of sola tixx wind energy and now so cheap that it's possible to get very cheap electricity and then if we can make harder without electricity. It's a cheap way to get a new fuel. That has a lot of different applications. So i think it's a combination of the world being ready to decarbonise. Some countries are pushing for the uptake of this new technology. And also the cost coming down for renewables in general now just to complicate things. This hydrogen hydrogen. The gas isn't enough itself clean. What's called grey. Hydrogen is made in a process using fossil fuel so it has no clean energy credentials at all. Blue hydrogen is created the same way but the carbon dioxide created during that process is captured and stored. So it's not completely clean but far better for the environment than burning coal. The third type of hydrogen is the most prized. It's known as green hydrogen and it's made using renewable energy source. That's the one most people get excited about when they talk about. Hajra hodgins future potential. So how much green hodgin is being produced around the world today. Where does it fit as a percentage of overall production zero so at the moment the vast vast majority they might be scale pilot. Projects demonstration scout green hydrogen projects. Right now at this moment in operation. But there's no large scale commercial grain hydrogen production happening globally. So that's important isn't it because that's not the way. It sometimes portrayed particularly in the media. Well it's important in the way that hydrogen is not inherently zero emissions. We talk about the fact that we're already making. Hydrogen will use hydrogen industry. It's important gas but in and of itself it's not zero emission if we use it from green hydrogen so using water splitting am renewable energy and then yes then we can have green hydrogen. But that's not the cheapest way to do it and that's not the way it's done in industry so at the moment we have no grain. Hydrogen capacity bought in two thousand twenty learn. There were a total of fifty gigawatts of green hydrogen projects announced and to put that into perspective so the national electricity market of australia is only twenty gigawatts so more than double out grid has been announced new green hydrogen projects just last year so the rate of acceleration of grain hundred projects is definitely stepping up. An increasing interest