[20190306]IN11065_完全基于可再生能源的电网？.pdf

CRS INSIGHT Prepared for Members and Committees of Congress INSIGHTINSIGHTi i An Electric Grid Based on 100% Renewable Energy? Richard J. Campbell Specialist in Energy Policy March 6, 2019 A recent assessment by the U.S. Global Change Research Program found that if greenhouse gas (GHG) emissions continue at current rates and adaptation actions are not undertaken, climate change impacts will damage U.S. infrastructure, communities, and the economy. This finding combined with significant GHG emissions from the electric power industry has led to an increased focus on U.S. energy policy. With growing amounts of todays electricity coming from renewable sources, some stakeholders advocate a shift of U.S. national electric power generation to come from sources that do not emit carbon dioxide. Some observers see greater electrification of the U.S. economy (extending to the transportation sector and electric vehicles) as one way to mitigate climate change. In addition, there have been a variety of discussions advocating a Green New Deal, including the companion House and Senate resolutions, with some calling for U.S. electric power generation to come 100% from renewable electricity by 2030.