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The 2020 Factbook showcases the impact of sustainable energy over the last decade and highlights findings for 2019 that follow the macro trends of the 2010s: • Renewable energy became the cheapest new generation source in many U.S. power markets. The U.S. has over 2 times more renewable power generating capacity today than a decade ago. Solar capacity in 2019 was 80 times greater than what it was at the end of 2009. • Energy efficiency choices have proliferated, with federal programs helping high-efficiency appliances reach mass markets and state codes bolstering building efficiency. The economy grew every year in the past decade and energy use fell in five of the ten years. U.S. energy productivity (GDP/energy consumption) improved 18% between 2010 and 2019, benefiting businesses and households. • Natural gas became the primary source of U.S. power generation and shifted the scales in the global market. Between 2010 and 2019 domestic natural gas production jumped 50%, and natural gas went from providing 24% of the nation's electricity to 38%. The U.S. increased its export capacity to exceed its import capacity, building stronger trade relationships around the world. In 2019, the U.S. exported more gas than it imported.

Not only are new homes in the U.S. getting smaller, they are getting greener. Despite overall sluggishness in the U.S. construction sector, the U.S. green building market is accelerating at a sU.S.antial rate, according to a new report from McGraw-Hill Construction.

AK Steel (NYSE: AKS) said today that revised energy efficiency standards proposed by the U.S. Department of Energy ("DOE") on February 1, 2012 are not expected to significantly impact the overall competitiveness of the company's grain-oriented electrical steels ("GOES") used in the manufacture of electrical distribution transformers.  In fact, AK Steel said that with respect to some types of distribution transformers the new standards have the potential for increasing the market for GOES.

According to the most recent issue of the “Monthly Energy Review” by the U.S. Energy Information Administration (EIA), renewable energy (i.e., biofuels, biomass, geothermal, hydroelectric, solar, wind) provided 10.51% of domestic U.S. energy production during the first nine months of 2009 – the latest time-frame for which data has been published.

U.S. Secretary of Energy Steven Chu, a Nobel laureate and professor emeritus of Physics at Stanford, returned to campus Monday to speak about the role of clean energy in combating global climate change. A sustainable energy revolution, he said, is not only vital in mitigating climate change, but is a critical step in ensuring U.S. economic competitiveness.