ABOUT THE SPEAKER
William Kamkwamba - Inventor
To power his family's home, young William Kamkwamba built an electricity-producing windmill from spare parts and scrap -- starting him on a journey detailed in the book and film "The Boy Who Harnessed the Wind."

Why you should listen

William Kamkwamba, from Malawi, is a born inventor. When he was 14, he built an electricity-producing windmill from spare parts and scrap, working from rough plans he found in a library book called Using Energy and modifying them to fit his needs. The windmill he built powers four lights and two radios in his family home.

After reading about Kamkwamba on Mike McKay's blog Hactivate (which picked up the story from a local Malawi newspaper), TEDGlobal Conference Director Emeka Okafor spent several weeks tracking him down at his home in Masitala Village, Wimbe, and invited him to attend TEDGlobal on a fellowship. Onstage, Kamkwamba talked about his invention and shared his dreams: to build a larger windmill to help with irrigation for his entire village, and to go back to school.

Following Kamkwamba's moving talk, there was an outpouring of support for him and his promising work. Members of the TED community got together to help him improve his power system (by incorporating solar energy), and further his education through school and mentorships. Subsequent projects have included clean water, malaria prevention, solar power and lighting for the six homes in his family compound; a deep-water well with a solar-powered pump for clean water; and a drip irrigation system. Kamkwamba himself returned to school, and is now attending the African Leadership Academy, a new pan-African prep school outside Johannesburg, South Africa.

Kamkwamba's story is documented in his autobiography, The Boy Who Harnessed the Wind: Creating Currents of Electricity and Hope. A  documentary about Kamkwamba, called William and the Windmill, won the Documentary Feature Grand Jury award at SXSW in 2013 (watch a trailer ). You can support his work and other young inventors at MovingWindmills.org.


More profile about the speaker
William Kamkwamba | Speaker | TED.com
TEDGlobal 2007

William Kamkwamba: How I built a windmill

William Kamkwamba o izgradnji vjetrenjače

Filmed:
2,952,899 views

Kada je imao samo 14 godina, Malawijski izumitelj William Kamkwamba izgradio je svojoj obitelji struju koju generira vjetrenjača od rezervnih dijelova, izrađeno pomoću grubih planova koje je našao u knjizi.
- Inventor
To power his family's home, young William Kamkwamba built an electricity-producing windmill from spare parts and scrap -- starting him on a journey detailed in the book and film "The Boy Who Harnessed the Wind." Full bio

Double-click the English transcript below to play the video.

00:29
ChrisChris AndersonAnderson: WilliamWilliam, hibok. Good to see you.
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Chris Anderson: William, zdravo. Lijepo te je vidjeti.
00:31
WilliamWilliam KamkwambaKamkwamba: ThanksHvala.
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William Kamkwamba: Hvala.
00:32
CACA: So, we'veimamo got a pictureslika, I think? Where is this?
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CA: Dakle, imamo sliku, mislim? Gdje je ovo?
00:37
WKWK: This is my home. This is where I liveživjeti.
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WK: Ovo je moj dom. Ovo je gdje ja živim.
00:41
CACA: Where? What countryzemlja?
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CA: Gdje? Koja zemlja?
00:43
WKWK: In MalawiMalavi, KasunguKasungu. In KasunguKasungu. Yeah, MalaMala.
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WK: To je Malawi, Kasubgu. U Kasungu. Da. Mala.
00:46
CACA: OK. Now, you're 19 now?
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CA: U redu, sada imaš 19 godina?
00:49
WKWK: Yeah. I'm 19 yearsgodina now.
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WK: Da. Sada imam 19 godina.
00:51
CACA: FivePet yearsgodina agoprije you had an ideaideja. What was that?
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CA: Prije pet godina imao si ideju. O čemu?
00:54
WKWK: I wanted to make a windmillVjetrenjača.
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WK: Želio sam napraviti vjetrenjaču.
00:56
CACA: A windmillVjetrenjača?
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CA: Vjetrenjaču?
00:57
WKWK: Yeah.
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WK: Da.
00:58
CACA: What, to powervlast -- for lightingrasvjeta and stuffstvari?
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CA: Dakle - što - za napajanje - svijetlosti i ostalog?
01:02
WKWK: Yeah.
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WK: Da.
01:04
CACA: So what did you do? How did you realizeostvariti that?
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CA: Dakle što si učinio? Kako si to realizirao?
01:07
WKWK: After I droppedpao out of schoolškola, I wentotišao to libraryknjižnica,
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WK: Nakon što sam napustio školu, otišao sam u knjižnicu,
01:11
and I readčitati a bookrezervirati that would -- "UsingKoristeći EnergyEnergije,"
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i pročitao knjigu koja je bila - "Korištenje energije,"
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and I get informationinformacija about doing the millmlin.
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i tamo sam dobio informacije o izgradnji vjetrenjače.
01:18
And I triedpokušala, and I madenapravljen it.
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Pokušao sam i uspio sam.
01:20
(ApplausePljesak)
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(Pljesak)
01:30
CACA: So you copiedkopira -- you exactlytočno copiedkopira the designdizajn in the bookrezervirati.
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CA: Dakle kopirao si - kopirao si nacrt iz knjige.
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WKWK: AhAh, no. I just --
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WK: Ah, ne. Samo sam -
01:36
CACA: What happeneddogodilo?
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CA: Što se dogodilo?
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WKWK: In factčinjenica, a designdizajn of the windmillVjetrenjača that was in the bookrezervirati,
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WK: Ustvari, nacrt vjetrenjače koji je bio u knjizi,
01:42
it has got fourčetiri -- ahAh -- threetri bladesnoževi,
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imao je četiri - ah - tri oštrice,
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and minerudnik has got fourčetiri bladesnoževi.
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a moj je imao četiri oštrice.
01:49
CACA: The bookrezervirati had threetri, yourstvoj had fourčetiri.
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CA: U knjizi je bilo tri, a kod tebe četiri.
01:51
WKWK: Yeah.
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WK: Da.
01:52
CACA: And you madenapravljen it out of what?
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CA: I od čega si to napravio?
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WKWK: I madenapravljen fourčetiri bladesnoževi, just because I want to increasepovećati powervlast.
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WK: Napravio sam četiri oštrice, samo zato što sam želio povečati snagu.
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CACA: OK.
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CA: OK.
02:00
WKWK: Yeah.
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WK: Da.
02:01
CACA: You testedtestiran threetri, and foundpronađeno that fourčetiri workedradio better?
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CA: Probao si tri, a otkrio da sa četiri bolje radi?
02:03
WKWK: Yeah. I testtest.
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WK: Da. Testirao sam.
02:05
CACA: And what did you make the windmillVjetrenjača out of?
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CA: Od čega si napravio vjetrenjaču?
02:08
What materialsmaterijali did you use?
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Što si - koje materijale si koristio?
02:10
WKWK: I use a bicyclebicikl frameokvir, and a pulleykoloturnik, and plasticplastika pipecijev, what then pullsvučenje --
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WK: Koristio sam ramu od bicikla, koloturnik, i plastičnu cijev, koju kad vučeš -
02:16
CACA: Do we have a pictureslika of that? Can we have the nextSljedeći slideklizanje?
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CA: Dali imamo sliku toga? Može li sljedeća slika?
02:19
WKWK: Yeah. The windmillVjetrenjača.
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WK: DA. Vjetrenjača.
02:21
CACA: And so, and that windmillVjetrenjača, what -- it workedradio?
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CA: Dakle, ta vjetrenjača - je radila?
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WKWK: When the windvjetar blowsudarci, it rotatesrotira and generatesgenerira.
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WK: Kada vjetar puše, ona se vrti i generira.
02:30
CACA: How much electricityelektricitet?
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CA: Koliko električne snage?
02:31
WKWK: 12 wattsvata.
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WK: 12 watti.
02:33
CACA: And so, that litlit a lightsvjetlo for the housekuća? How manymnogi lightssvjetla?
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CA: Dakle, to je bilo dovoljno za svijetlo u kući? Koliko svijetla?
02:38
WKWK: FourČetiri bulbsžarulje and two radiosradio.
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WK: za četiri žarulje i dva radija.
02:40
CACA: WowSjajna osoba.
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CA: Oho
02:41
WKWK: Yeah.
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WK: Da.
02:42
(ApplausePljesak) CACA: NextSljedeći slideklizanje --
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CA: Dakle - (Pljesak) - sljedeća slika -
02:52
so who'stko je that?
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što je ovo?
02:54
WKWK: This is my parentsroditelji, holdingdržanje the radioradio.
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WK: Ovo su moji roditelji, kupujući radio.
02:57
CACA: So what did they make of -- that you were 14, 15 at the time --
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CA: Dakle što su oni učinili - ti si imao 14, 15 godina tada -
03:01
what did they make of this? They were impressedimpresioniran?
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što su oni napravili od toga? Dali su bili oduševljeni?
03:04
WKWK: Yeah.
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WK: Da.
03:05
CACA: And so what's your -- what are you going to do with this?
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CA: Dakle, što je tvoj - što kaniš učiniti s ovim?
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WKWK: UmHm --
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WK: Hm -
03:09
CACA: What do you -- I mean -- do you want to buildizgraditi anotherjoš one?
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CA: Što si - mislim - dali si poželio izgraditi još jednu?
03:13
WKWK: Yeah, I want to buildizgraditi anotherjoš one --
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WK: Da, želio sam izgraditi još jednu -
03:16
to pumppumpa watervoda and irrigationnavodnjavanje for cropsusjevi.
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da pumpa vodu i navodnjava - navodnjava usjeve.
03:21
CACA: So this one would have to be biggerveći?
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CA: Dakle ova je trebala biti veća?
03:23
WKWK: Yeah.
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WK: Da
03:24
CACA: How bigvelika?
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CA: Koliko veća?
03:25
WKWK: I think it will produceproizvoditi more than 20 the wattsvata.
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WK: Mislim da će proizvesti više od 20 wati.
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CACA: So that would produceproizvoditi irrigationnavodnjavanje for the entirečitav villageselo?
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CA: Dakle to će navodnjavati cijelo selo?
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WKWK: Yeah.
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WK: Da.
03:37
CACA: WowSjajna osoba. And so you're talkingkoji govori to people here at TEDTED
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CA: Oho. I sada govorite ljudima ovdje na TED-u
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to get people who mightmoć be ableu stanju to help in some way
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da pridobijete ljude koji vam mogu pomoći na neki način da -
03:44
to realizeostvariti this dreamsan?
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realizirate taj san?
03:46
WKWK: Yeah, if they can help me with materialsmaterijali, yeah.
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WK: Da, ako mi oni mogu pomoći - sa materijalima, da.
03:50
CACA: And as you think of your life going forwardnaprijed,
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CA: Kao što mislite da vaš život ide naprijed,
03:53
you're 19 now,
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imate 19 sada, da li -
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do you pictureslika continuingnastavlja with this dreamsan of workingrad in energyenergija?
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vaše slike nastavljaju s vašim snom, radom na energiji?
04:00
WKWK: Yeah. I'm still thinkingmišljenje to work on energyenergija.
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WK: Da. I dalje razmišljam raditi na energiji.
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CACA: WowSjajna osoba. WilliamWilliam, it's a realstvaran honorčast to have you at the TEDTED conferencekonferencija.
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CA: Oho. William, prava je čast imati te na TED konferenciji.
04:09
Thank you so much for comingdolazak.
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Hvala ti puno na dolasku.
04:11
WKWK: Thank you.
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WK: Hvala vama.
04:13
(ApplausePljesak)
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(Pljesak)
Translated by Bojan Hodap
Reviewed by Tilen Pigac - EFZG

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ABOUT THE SPEAKER
William Kamkwamba - Inventor
To power his family's home, young William Kamkwamba built an electricity-producing windmill from spare parts and scrap -- starting him on a journey detailed in the book and film "The Boy Who Harnessed the Wind."

Why you should listen

William Kamkwamba, from Malawi, is a born inventor. When he was 14, he built an electricity-producing windmill from spare parts and scrap, working from rough plans he found in a library book called Using Energy and modifying them to fit his needs. The windmill he built powers four lights and two radios in his family home.

After reading about Kamkwamba on Mike McKay's blog Hactivate (which picked up the story from a local Malawi newspaper), TEDGlobal Conference Director Emeka Okafor spent several weeks tracking him down at his home in Masitala Village, Wimbe, and invited him to attend TEDGlobal on a fellowship. Onstage, Kamkwamba talked about his invention and shared his dreams: to build a larger windmill to help with irrigation for his entire village, and to go back to school.

Following Kamkwamba's moving talk, there was an outpouring of support for him and his promising work. Members of the TED community got together to help him improve his power system (by incorporating solar energy), and further his education through school and mentorships. Subsequent projects have included clean water, malaria prevention, solar power and lighting for the six homes in his family compound; a deep-water well with a solar-powered pump for clean water; and a drip irrigation system. Kamkwamba himself returned to school, and is now attending the African Leadership Academy, a new pan-African prep school outside Johannesburg, South Africa.

Kamkwamba's story is documented in his autobiography, The Boy Who Harnessed the Wind: Creating Currents of Electricity and Hope. A  documentary about Kamkwamba, called William and the Windmill, won the Documentary Feature Grand Jury award at SXSW in 2013 (watch a trailer ). You can support his work and other young inventors at MovingWindmills.org.


More profile about the speaker
William Kamkwamba | Speaker | TED.com