Can 100% renewable energy power the world? - Federico Rosei and Renzo Rosei

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Every year, the world uses 35 billion barrels of oil. This massive scale of fossil fuel dependence pollutes the earth, and it won’t last forever. On the other hand, we have abundant sun, water and wind, which are all renewable energy sources. So why don’t we exchange our fossil fuel dependence for an existence based only on renewables? Federico Rosei and Renzo Rosei describe the challenges.
Lesson by Federico Rosei and Renzo Rosei, directed by Giulia Martinelli.
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Dec 7, 2017

Federico RoseiRenzo RoseiGiulia MartinelliTEDEdTED-EdTED Educationrenewable energysustainable designenviromentalismwindmills




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Comments 1 129
TED-Ed Year ago
Thank you so much to everyone supporting us on Patreon! You are helping amplify the voices of scientists working towards a more sustainable future. If you'd like to learn more about how to get involved, check out our Patreon page: bit.ly/2BRTjYU
Aisha Mir
Aisha Mir Month ago
@Ben Jamin' Please read the article, it says nuclear is sustainable, not renewable. Many people could argue oil is sustainable because of the abundance of oil, doesn't make it renewable.
James Haywood
James Haywood 6 months ago
Why no mention of thorium reactors? Abundant fuel, high power, extremely low risk, no pollution, cheap... The list goes on.
Yan Ming Zhou
Yan Ming Zhou 9 months ago
Real question is-Can an influential civil engineering firm leader change the politics?
Lit_Coal 10 months ago
The greed of man shall be it's very destruction
Farooq Abbasi
Farooq Abbasi 20 hours ago
Nice video. Can you do a video on lithium ion battery?
Nihar Jyoti
Nihar Jyoti 3 days ago
0:25 It's a good awareness initiative. But TED-Ed is a famous platform and we people expect more from it. If oil and gas runs out in 50 years or some renewal energy will be there but what about all those 5000+ petroleum products we get from nail polish to aviation fuels. Not only renewal but oil and gas industries are also evolving. We are searching for more crude day by day and recent advancements in shale and gas hydrate will be a key source.
Oisín Considine
Oisín Considine 4 days ago
Easy solution: Nuclear Energy.
Rory Lee
Rory Lee 4 days ago
Except that electricity is only one third of our energy needs. Can you run cars/planes/ships on electricity? No, you can't. Nuclear isn't the solution, keep trying.
Adahn 10 days ago
Looking at the comments, I'm a little shocked at how misinformed the general public is concerning energy.
Jericca Young
Jericca Young 12 days ago
XxTh1l3g3nd27xX 15 days ago
Yay fossil fuels are gonna run out cause if it did fossil fuel plants will be useless cause Earth is dying
Rumah Inggris -Zano
Nice explanation
Joss Goyanko
Joss Goyanko 21 day ago
5:00 "[to develop clean energy alternatives] we need powerful incentives." You mean, more powerful than the continued survival of modern civilization?
The Realist Guide
Anon Month ago
Well stated and realistic. In some cases renewables can currently be cost effective, such as solar powered emergency telephones along remote highways where power is otherwise unavailable. But there are the considerations mentioned here that are currently real "show-stoppers" for commercial and most (definitely not all) residential applications. Here are a couple more pragmatic considerations: ruvid.net/video/video-ObvdSmPbdLg.html
Antón Vázquez
Antón Vázquez Month ago
I liked the video, but it ignores the impact that renewable energies have on the ecosystems.
glasslinger Month ago
All you have to do is raise taxes to pay for it! THAT HAS BEEN THE WHOLE PROBLEM ALL ALONG! DUH!
Alex McCree
Alex McCree Month ago
Renewable energies are certainly an upgrade over fossil fuels, but it’s not the best option we have. Nuclear fission is our most powerful, efficient, consistent, and cleanest source of energy. We’d be fools to not pursue it. Choosing renewables over nuclear fission is like choosing leather armor over steel armor when you want maximum physical protection. It’s just not something you’d logically do.
Enes SULAR Month ago
LL M Month ago
solution going nuclear with more secure and cheap reactors
BoHjalmarGames 29 days ago
Cheap reactors aren't the way, cost-efficient is.
Scottar Brooke
Scottar Brooke Month ago
We already have a good energy source, we just need to invest more time and energy into developing it. 4th Gen Reactors MSRs Why they are super safe. ruvid.net/video/video-mXaDqRrPc_M.html
Full2Fun Month ago
check out this one.. www.buzzingfacts.com/2019/05/top-5-advantages-of-using-solar-energy.html
Tj Grant
Tj Grant 2 months ago
As angry as us progressives are at conservatives for being anti-science on climate change, unfortunately we're being just as unscientific in our renewable energy boosterism. Granted, we should be mildly enthused that solar panels and batteries are getting better. It allows us to create renewable micro-grids and electric cars, which is great! But there are no industrial cities of a million or more people running on 100% renewables, and there are no countries running on 100% wind or solar. The countries that are 100% off fossil fuels have small populations, and huge natural resources of hydropower or geothermal. The reason this keeps not changing, and the reason it will stay the same is because the technology doesn't exist to scale wind and solar up to the big leagues. And there's no reason to think we'll be able to any time soon. We only have a few years left, we don't have time for misleading promises. Since wind and solar can't scale up to the power storage and consistency we need, we have to take another hard look at nuclear. And it turns out it's been unfairly dismissed. Check out Michael Shellenberger's Why renewables can't save the planet. ruvid.net/video/video-N-yALPEpV4w.html
nrawayne 2 months ago
Solar powered 18-wheelers will deliver steel and prefabricated reenforced concrete structures. It's already possible but "the man" and all of the oil billionaires are suppressing these simple solutions. IT'S A CONSPIRACY MAN !!! 😂🤣😂🤣😂🤣😂🤣
SplitSecond 2 months ago
retosius 2 months ago
well, geothermal and solar would be the closest. mostly7 geothermal due to the large amount pollution that can be caused by the rare metals used to make it. sudden thought: BIO FUELS. engineer a species of olive plant that produces extremely large amounts of oil plus recycled oil would make plenty of fuel and would have much lower carbon emissions that what's in normal oil plus less pollutants from the process of extraction.
Whacked gaming
Whacked gaming 2 months ago
Another thing about the building 700,000 solar panels is what location? and that will very much impact nature, But guess its ok to just deforest everything? and wind well that just kills off all the bats and stuff that fly's. I do hope we can find some way to get off fossil fuels just don't think it will be anytime soon.
that one guy c
that one guy c 2 months ago
Renewable energy sucks change my mind
Jameel Ja
Jameel Ja 2 months ago
How come nuclear energy wasn't mentioned in this video.
Jameel Ja
Jameel Ja 2 months ago
I wouldn't say Li-ion is light weight.
Holly Handschuh
Holly Handschuh 2 months ago
“Powerful incentives” uhhh how about us not dying due to pollution should be a big enough incentive😂
Sparkes TV
Sparkes TV 2 months ago
Sparkes TV
Sparkes TV 2 months ago
Ronith Lahoti
Ronith Lahoti 2 months ago
Thank u
Noah I.
Noah I. 2 months ago
Geo T
Geo T 2 months ago
It's a Trump-style lie to claim that things built and maintained with fossil fuels are "100% renewable." Carbon credits are a parlor trick. The worst aspect is industrial wind power, the most invasive form of sprawl ever created, which really doesn't reduce carbon. See these links: google.com/search?tbm=isch&q=wind+farm+mountain www.google.com/search?q=wind+turbines+noise+infrasound www.google.com/search?q=wind+turbines+birds+bats+kill www.google.com/search?q=germany+energiewende+co2+emissions+failure www.google.com/search?q=cubic+mile+of+oil
Henri Sakakini
Henri Sakakini 2 months ago
Learn how to use clean solar alternative power www.astro-vision-avenir.com/index_Eng.html
It can and will do.
Tim Gard
Tim Gard 2 months ago
We are going to have to begin serious conversations about the REAL problem with lack of progression of renewable energy. Until we start discussing this real block, it will continue un-abated. I have made it my mission to begin to help people understand what and who the real enemy is, (the fossil fuels industry)and exactly how we can fight this enemy effectively. Wanna fight? Lets get it right! twitter.com/TimGard1/media
Bernardo Antunes
Bernardo Antunes 2 months ago
Not even mentioning nuclear, one of the most important and relevant energy sources makes me not trust the content of this video. Not going show it to my kid for sure!
tetsuya uezato
tetsuya uezato 2 months ago
Am I the only one hearing excuses??
Fabian technogreen
Fabian technogreen 3 months ago
Great video!!! I work with alternative energies in Colombia. It's pretty hard. In spite of, we haven't advanced because government is quite corrupted. Ww need help.
Tupac Shakur
Tupac Shakur 3 months ago
Yes, and also the Earth is not a spinning globe.
Константин Дьяченко
Use optical fiber cables to transport solar energy.
Carrie Tuttle
Carrie Tuttle 3 months ago
oh oh oh oreilly... auto parts AWH
Jose Anibal Sotto
Jose Anibal Sotto 3 months ago
Don' t talk about atomic energy, why?
Olivia SUN
Olivia SUN Month ago
It's alternative, not renewable.
Alex Ding
Alex Ding 2 months ago
Because they are not renewable. The topic of this video focuses on renewable energy.
Gordon Shumway
Gordon Shumway 3 months ago
We are not running out of oil in 40 years....this fearmongering is old and tiring. We are not running out of coal in 100 years most estimates of known global coal supplies to last into the many thousands of years. Natural gas is ever growing abundant. Many believe oil is ambiotic and renews itself in time. It has been found that many once used and dried out, shut down oil wells years later were again able to pump crude oil from the ground. Nice propaganda video for wind and solar though.
Ken Van de Burgt
Ken Van de Burgt 3 months ago
you left out reliable and cheap .. you forgot to mention the land investment ... aka habitat destruction. What you need is solar satellites and a way to transport the energy to earth. In space its raining soup and you don't have a bowl.
The Kelpy G
The Kelpy G 26 days ago
retosius Dyson sphere?
Ken Van de Burgt
Ken Van de Burgt 2 months ago
@retosius Dyson Sphere?
retosius 2 months ago
you bean that solar dome thing that I can't remember the name of. something sphere. that'll be long into the future.
Aaron Gabriel German
Cant we just prestige the whole world UwU...?
Luca Fontana
Luca Fontana 3 months ago
4th gen nuclear, all the rest is marketing and dreams
Arsene Wenger
Arsene Wenger 4 months ago
So many lies!!! Coal can power us for 500 more years. And no way are we out of oil in 50 years.
BoHjalmarGames 29 days ago
BP's Statistical Review of World Energy says 50 years if we stop consuming more now, but the population is growing and is consuming more. Business Standard says coal has 110 years left, regardless coal is a bad power source.
Hector Ibarra De La Rosa
this video is realy good im sorry about the other coment
Hector Ibarra De La Rosa
this viideo sucks i dont like it
Jimin Bang
Jimin Bang 4 months ago
we have the 4 elements. air/wind, water, sun, and land. so, we need another element!
Kapt'n Pee
Kapt'n Pee 2 days ago
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