one of them has a plow not really sure. so nothing is just the children who have always been the ole n.s.u. and those that will follow are part of a new governor says. they could be the future of columbus and. granting opportunities global news that matters d. w. made for mines. you thought the coronavirus was big or climate change is an even bigger challenge facing the planet but the current health crisis has been a boon for green energy dramatically lower global demand for electricity during lockdown has allowed bridge new balls to flourish they also make more business sense they're increasingly cheaper than fossil fuels like coal which is turning out

to be one of the most expensive sources of power green energy for the future our topic of made the w's business shark. coles biggest threat now is economics but there's still a heap of it used in the making of steel the sector is one of the most energy intensive around the production methods about the change since the 1st industrial revolution of the 18th and 19th centuries usually iron ore is melted in blast furnaces where the impurities are removed and carbon is added by burning coal that lots of huge amounts of carbon dioxide into the atmosphere changes in the air a new era of steel making is here without the higher missions. heavy industry doesn't get much heavier than this steel production. but can the metal be manufactured using greenery tricity at this factory they say they can.

seal production is responsible for around 5 percent of global c o 2 emissions but here it is time back and they've slashed their output if the greenhouse gas. is higher. with conventional steel production where coal is burnt in a blast furnace c o 2 emissions are 3 or 4 times higher than with steel recycling using an electric arc furnace. conventional steel production involves the combination of iron ore and coking coal which takes place in the blast furnace when melted the or produces a pig iron. the yarn is then melted in the converter together with scrap metal to produce crude steel the finished product is used to make them such as steel girders burning hard cold limits of 2000 the kilos of c

o 2 per ton of steel produced. that figure is far lower with green steel because it involves recycling here scrap steel is fed into an electric arc furnace the electricity comes 100 percent from renewable sources such as wind farm. 2 emissions amount to just $110.00 kilos for ton of steel. the scrap steel comes in all shapes and sizes from waste incineration plants and dealer is primarily from the surrounding who are finally region. and this is where it's recycled this specific mix of different kinds of use steel is collected in sheets scrapbook adds. they are then conveyed to the melting hole which measures them 40 meters tall. everything here is super sized because one of the biggest electric arc for in this is in the world is about to get to work. howard by alex tricity with a note of 61110000 volts generating

a loss of. these graphite electrodes measuring several meters long built up a temperature of 1800 degrees celsius in the furnace will soon see and hear the resulting spectacle. over in the control room cabin vis house has. just added a special mixture of scrap steel and this is if we should be seeing a change in the furnace from the sound. normally it should be getting a bit quieter. misfired it took 10 years of experience to muster the job. in the biggest danger is always a failure in the cooling of the electric arc works with a huge amount of energy at temperatures of up to 3 and a half 1000 degrees of the molten metal as he said to 17 or 1800 degrees so the cooling fails the furnace would melt itself and water and steel are not compatible . once the melting process is

over he retracts the electrodes. his immediate boss is in charge of both the melting and the steel production process. and steel that's released or top from the furnace before being processed. what we have here is a special design a furnace that's pretty rad so it's exciting coming here every day and seeing the crew through material they turned it into pristine cutouts. of the factory have high voltage power lines due to the scale involved they supply the entire complex with 350000000 kilowatt hours of energy a year making energy efficiency a priority. using scrap we already have low energy

consumption and c o 2 emissions. a step we're taking now producing green steel is a further improvement. in the future we'll be making it with green electricity. and the plants our consumption is enormous. vaca needs as much alec christie as the entire time to victor seen in the background its population 100000 people. the continuous constant plans produces great steel in someone's eyes and different grades from bullet proof steel for limousines to a special burglarizing for medical implants. the sort of electric company we have 90 to 100 minutes between toppings which

means 13 or 14 batches per day and if it's made on top. which in turn translates into around $1500.00 tons of steel produced every day a product that's marketed under the green still able to do the lower and push a studio to. a new smelting procedure every time kevin but it's house prepares for a new batch it's something of an event itself most was a big motivation when i took on the job it's pretty special. then it's time for the fireworks. despite being produced with eco friendly energy the company says it's green steel does not cost much more than steel made with coal. to grown a virus pandemic has put a damper on the mood in the industry but the pressure to lower c o 2 emissions is high and this deal could soon be used to fashion

a truly green automobile. well in 30 years europe wants to become the 1st climate neutral consulate but that won't save the environment if other big polluters don't join the initiative south africa's hunger for electricity is only growing at the same time that the nation struggles through an economically damaging energy crisis it's been dragging on since 2007 widespread rolling blackouts a power utility riddled with mismanagement and corruption but turning out the lights on the country has spock's lots of ideas. one year ago the protea heights academy school in cape town went solar without paying for the installation the system was financed by a crowd funding platform the idea small investors buy panels and earn an income from selling the electricity to the school that is using them. so far abraham cambridge is crowdfunding platform has equipped over 30 schools and companies

within 5 years they plan to have more than $200.00 additional systems installed. so if you want to put money in solar panels from environmental reason put them in south africa you're offsetting 8 times the carbon emissions with a side of our own here's africa than it would do in germany for example and you get a twice as much electricity out of it so just makes more sense to put a solar power away you create more social environmental and economic impact. and for the school the solar energy is cheaper than power from the grid with investments as little as 4 year as some exchange is also open to people with less income and fact many of the pupils at protea heights invested in the solar cells themselves when the horn is the school's former principal she says that aside from clean cheap energy the project also brings another benefit so we lead always that yeah kids are so excited aliveness to actually evolved an intrapreneur old thing and actually buy sluice cells themselves and see how the money would increase or

decrease or whatever i mean it was it created a huge interest in near real excitement and that is also what you want to teach children for the future isn't to premier real skills. innovative models to fund and produce green energy are urgently needed in south africa the government aims to produce a quarter of all electricity from renewables by 2030. the ocean playing a role. simon weinberg's company developed an underwater pump powered by the ocean. as waves it turned some water into drinking water all at the same time producing a constant source of energy that could power up to 10 european households all year round. thanks. for. there's always energy. if we said we're looking at whole range of waves that come from different areas

there's a lot of stuff that's produced locally by the local winds but there's an enormous amount of energy that's come from storms that could be thousands of miles away. from the wave pump it is time to a boy that lets the arm with each wave the lever movement pressure rises water to purify it and generate electricity at the same time for years the prototype unit was tested under water and is now back in the workshop for some maintenance. so far the unit has proven that the concept works the team says despite the challenges. the challenges with the ocean is that it's an expensive system to develop when it is very little funding available this is why it's taken so long to get where it has to do with sufficient funding the company could start to build larger pumps next year that would feed into the power grid the sun exchange crowd funding platform meanwhile has just received an additional $3000000.00 euros from one major investor powering on south africa's green energy

transition. here's a more clever guys who were acting early enough to be head of the game a decade ago the founders of b. box met at university and decided to bring solar systems to remote parts of africa today the london startup provides hardware software sales and customer services for green electricity on the continent that concept was ditching national grades for locally sourced solar energy networked by the internet. supplying. africa with solar energy via their headquarters in london might seem like an ambitious goal but it's one that b. banks is determined to make a reality for startups founders months or how many union christopher baker brian want to end global energy poverty. to describe ourselves as the next generation utility company that means we're providing a lot more than just electricity to our souls but things like internet access and

access to water services and cooking gas for example so all of those basic modern services that we take for granted here in the western world that our households and customers on the ground are really striving to achieve locally. that you memetic college over 10 years ago together with their other partner the beginnings of the venture were modest as a student charity organisation the budding engineers vision to bring solar systems to remote areas and to link them up digitally. managed to get some funding from our own university from other sponsors as well and we were able to that some provide electricity to some 60 households in a rural part of the rwanda and i think but a time that the thought system got installed our 1st customer that was really applying that was very transformative in my own personal life because everything is

theory until that point we saw this real major global challenge of billions of people who lacked access to reliable actually power and we may be naïve back then felt that we could do something to make an impact. and the engineering students efforts soon bore fruit they developed the box a digital platform that connects off grid solar systems to a central server the system can for example detect technical problems ahead of time and to correct them the boxes are currently provided to 10 countries mostly in africa the company also supplies the corresponding solar panels and has so far served over a 1000000 customers. people already spend a lot of money and energy to spending money on terrorists handles batteries for radios very bad diesel generator to spending tens of dollars a month on this sort of stuff so we take that money that they're already spending on energy and giving them something better you know if you included in here the

c.e.o.'s are in close contact with their branch offices in africa but they want to keep their h.q. in london. and that's where they find the programmers and engineers they need. it's also where the money comes from. the boxes yet to make any profit but they've just raised $50000000.00 u.s. dollars from international investors. one of the key things to be able to achieve millions hundreds of millions of people with access to electricity is to bring in partnerships the likes of yes we joined within the last few years in openness in togo and mitsubishi invested in b books in the middle of 2019. with a sort of partnerships help us achieve the scale that we need to to achieve over the next few years in order to make a real significant impacts the concept could be put to work in europe as well according to the b. box founders but battery prices would need to go down for that to happen still

their main goal remains to serve developing countries.