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Clean technology includes the renewable energy (wind power, solar power, biomass, hydropower, biofuels), information technology, storage technologies, green transportation, electric motors, green chemistry, lighting, and many other appliances that are now more energy efficient. We focus this collection on renewable energy and development of the Smart Grid.

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Will Falling Oil Prices Kill Wind and Solar Power? Dr. Steven Chu

Former U.S. Energy Secretary Dr. Steven Chu, who oversaw a doubling of renewable energy deployment from 2009-2013, addresses if falling fossil fuel prices threaten wind and solar power.

Chu explains that 78% of U.S. economies have state-mandated renewable portfolio standards, requiring a fraction of clean energy. Renewables, currently supplying 13% of U.S. electricity, have seen significant cost reductions. Wind power, even without subsidies, is nearly as inexpensive as natural gas.

Solar generation in sunny regions nears cost parity with new natural gas plants. Wind and solar costs are projected to decline for decades, potentially making them competitive with any new energy source across much of the U.S. within a decade.

EarthSayer Dr. Steven Chu

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