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Revolution Now

Policies and investments to support emerging clean energy technology are a cornerstone of the Energy Department's work to advance the energy economy of tomorrow. 

Thanks to decades of these policies and investments, the clean energy future has already arrived for four key technologies: wind turbines, solar panels, electric vehicles and LED light bulbs, each of which has seen drops in cost and growth in consumer demand over the past four years.

Revolution Now: The Future Arrives for Four Clean Energy Technologies tells the story of how these four technologies successfully crossed “the valley of death” -- what entrepreneurs commonly call the gap between research and wide-scale deployment -- and joined a burgeoning consumer market for clean technology.

Highlights from the report include

  • In 2012, wind was the largest single source of new electrical generation capacity in the U.S., accounting for 43 percent of new generation assets.
  • The price of rooftop solar panels in 2012 was about 1 percent of what they cost 30 years ago -- and deployment is skyrocketing.
  • LED lights are about 80 percent more efficient than traditional incandescent light bulbs and last 25 times longer. Over its lifetime, a single $15 LED light will save more than $140 in electricity, compared to incandescent lighting.
  • In 2012, America’s EV market tripled in size, and in the first half of 2013 it more than doubled. One reason is impressive reductions in EV battery costs, which have fallen more than 50 percent in the last four years.

Read the full report and watch the video above featuring Secretary Moniz about its findings.