Chu at COP-16: Building a Sustainable Energy Future

U.S. Secretary of Energy Steven Chu addresses the U.S. Center in Cancun on the need to build a sustainable energy future as part of the United Nations Climate Change Conference, COP-16. In his remarks he highlights the need to promote international collaborations to find new solutions that will benefit us all, to use use energy more wisely and develop low-carbon technologies.

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[MrAbubokar]

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[sheeptrik]

You have already free energy ! You have UFO toys in your militairy industrie ! Mess a little bit around at airea 51 and the new airea 52 where they do secret investigations and test-flights with these things.

You don't need more funding, this is only a new excuse to waist tax money !

[makeiteasyable]

nice

[trakkaton]

Trillions for mass murder? Available without any discussion!

Renewable energy? Efficiency? Don't even try to ask, you'll get attacked!

[pathosbedlam]

Kinda Funny how the bit where the US Secretary of Energy admits that global warming was our fault, didn't end up on the news. Why am I not surprised. But at least he is trying to be honest with us. More than I can say for most politicians. I learned more in this video about the current state of the world than anyone could do watching commercial TV for a whole year. Nice Job Chu.

[ronmann606]

Modern lithium batteries of all different chemistries Can be charged in 10 minutes easily, 4 minutes max. Old problems like energy density, cyclebility , fast charging have all been solved.

Right now theres only 2 problems left. They need to cost less, and there needs to be fast charge infrastructure. We are almost there.

[fireofenergy]

LiFePO4's come in 100 amp hour sizes, not toy batteries like the Tesla had to use because Lifepo4 wasn't available then (and because li-ion is more energy dense). However, they do need "balencing" when discharged at the 1C rate. The electronics could easily be mass produced so as not to cost as much as it does now...

Bty, this newer lithium IRON phosphate lasts for 2,000 complete cycles or like 8,000 partial cycles which is why this battery is so much better than its li-ion predecessor.

[nicspits]

Battery in the tesla roadster lasts for about 250 miles, we'll say 200... Li Ion batteries can be expect to cycle 350 times (half the max the expected 700). Mind you that battery 6800 cells so individual failure threat is minimized and "packs" can be changed out if they fail.

So 250 x 350 = 87,500. Seems like the 90,000 timing belt will change to battery change. Certainly cost more but hey, you paid 1/30th in gas for 6 years = $5700 worst case.