logo
episode-header-image
Jun 2023
10m 25s

How wireless energy from space could pow...

TED
About this episode
Modern life runs on wireless technology. What if the energy powering our devices could also be transmitted without wires? Electrical engineer Ali Hajimiri explains the principles behind wireless energy transfer and shares his far-out vision for launching flexible solar panels into space in order to collect sunlight, convert it to electrical power and then beam it down to Earth. Learn how this technology could power everything -- and light up our world from space.

Hosted on Acast. See acast.com/privacy for more information.

Up next
Jul 10
A story of moral imagination and bold entrepreneurship | Sitoyo Lopokoiyit and Jacqueline Novogratz
In a conversation about visionary leadership, M-PESA CEO Sitoyo Lopokoiyit speaks with impact investor and Acumen CEO Jacqueline Novogratz about how he grew a nascent mobile payment service into Africa’s largest fintech platform — which now handles nearly 60 percent of Kenya's GD ... Show More
19m 36s
Jul 9
"Marigolds," a poem about wonder | Safiya Sinclair
Poet Safiya Sinclair performs "Marigolds: A Letter to Wonder," an original poem she created for TED that explores memory, beauty and the fragility of life. After the poem, she talks with TED's Helen Walters about her writing process — and what it feels like when the creative muse ... Show More
9m 2s
Jul 8
The miraculous device that saved my farm — and changed my life | Josephine Waweru
Exhausted from carrying water up a hill to keep her small farm in Kenya thriving, Josephine Waweru received an unexpected call that offered a nearly unbelievable solution. She shares how one simple device allowed her crops (and her dreams) to flourish — and offers a glimmer of ho ... Show More
10m 18s
Recommended Episodes
Aug 2023
How wireless energy from space could power everything | Ali Hajimiri
Modern life runs on wireless technology. What if the energy powering our devices could also be transmitted without wires? Electrical engineer Ali Hajimiri explains the principles behind wireless energy transfer and shares his far-out vision for launching flexible solar panels int ... Show More
11m 50s
May 2024
How wireless energy from space could power everything | Ali Hajimiri
Modern life runs on wireless technology. What if the energy powering our devices could also be transmitted without wires? This week we are revisiting a talk by electrical engineer Ali Hajimiri, where he explains the principles behind wireless energy transfer and shares his far-ou ... Show More
11m 50s
Apr 2020
Professor Saiful Islam
Not so long ago, all batteries were single use. And solar power was an emerging and expensive technology. Now, thanks to rechargeable batteries, we have mobile phones, laptops, electronic toys, cordless power tools and other portable electronic devices. And solar power is reducin ... Show More
26m 59s
Aug 2021
Can we run the world on electricity?
The target for many countries around the world is to reach net zero emissions within the next few decades. That means a dramatic move away from fossil fuels like oil, coal and gas. For some the answer to the problem is to boost “green” electricity production, so that we can run o ... Show More
23m 36s
Jun 2020
Nigerian internet land rights costs fall
A major problem in laying internet cables in Nigeria is the phenomenal cost of right of way charges – these are local state imposed fees to broadband providers. Ekiti, one of Nigeria’s smallest states, has cut its right of way charges by 96%. It will now cost $374 to lay a kilome ... Show More
50m 23s
Aug 2023
Beaming 24/7 solar… from space
It’s the highest-intensity solar power you can get. It’s available 24/7. And you can send it anywhere on earth.All you need to do is launch a ten-by-ten kilometer array of solar panels into geosynchronous orbit, capture solar energy, and beam it to earth using a massive antenna a ... Show More
48m 52s
Jan 2021
Why Local Solar + Storage Is a Pillar of the Net-Zero Grid
This week, we finally left behind a destructive regime that thwarted environmental policy at every turn. We exchanged it for a government putting climate experts and clean-energy doers in its highest ranks in a way that no prior administration has done before.What comes next?Firs ... Show More
59m 54s
Jan 2023
Tapping Solar Power in Space
Caltech research scientist Austin Fikes talks about capturing solar energy in space with a satellite that would relay the power to Earth. 
18m 25s