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Science and Technology for a Clean Energy Future

Science and Technology for a Clean Energy Future

This video was recorded at MIT Energy Short Course. The photovoltaic industry has been steadily growing over the past 30 years. But for solar cells to help eliminate our dependence on fossil fuels, says Emanuel Sachs, they'll need to provide trillions of watts of power -- and we are "still a thousand fold from where we need to be." Sachs' "photovoltaic grand challenge" involves building hundreds of billions of solar cells annually, which may come about through new manufacturing processes. And don't discount other renewables, like wind farms. New proposals avoid the "Not in my Bay" effect, by placing floating turbines in deep water beyond sight. While the sun offers a source of unlimited energy, we can't take advantage of it without better storage systems. In particular, says Yet-Ming... Show More

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