气候变化领域集成服务门户(CCPortal): Geophysical constraints on the reliability of solar and wind power in the United States

CCPortal

DOI	10.1039/c7ee03029k
	Geophysical constraints on the reliability of solar and wind power in the United States
	Shaner M.R.; Davis S.J.; Lewis N.S.; Caldeira K.
发表日期	2018
ISSN	17545692
起始页码	914
结束页码	925
卷号	11 期号:4
英文摘要	We analyze 36 years of global, hourly weather data (1980-2015) to quantify the covariability of solar and wind resources as a function of time and location, over multi-decadal time scales and up to continental length scales. Assuming minimal excess generation, lossless transmission, and no other generation sources, the analysis indicates that wind-heavy or solar-heavy U.S.-scale power generation portfolios could in principle provide ∼80% of recent total annual U.S. electricity demand. However, to reliably meet 100% of total annual electricity demand, seasonal cycles and unpredictable weather events require several weeks' worth of energy storage and/or the installation of much more capacity of solar and wind power than is routinely necessary to meet peak demand. To obtain ∼80% reliability, solar-heavy wind/solar generation mixes require sufficient energy storage to overcome the daily solar cycle, whereas wind-heavy wind/solar generation mixes require continental-scale transmission to exploit the geographic diversity of wind. Policy and planning aimed at providing a reliable electricity supply must therefore rigorously consider constraints associated with the geophysical variability of the solar and wind resource - even over continental scales. © 2018 The Royal Society of Chemistry.
英文关键词	Digital storage; Electric energy storage; Electric power utilization; Geophysics; Reliability; Solar energy; Continental scale; Electricity demands; Electricity supply; Environmental science; Function of time; Geographic diversity; Multi-decadal time scale; Solar and winds; Wind power; demand analysis; electricity supply; energy planning; energy policy; energy resource; energy storage; power generation; solar cycle; solar power; wind power; United States
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190262
作者单位	Carnegie Energy Innovation, Carnegie Institution for Science, Stanford, CA, United States; Department of Earth System Science, University of California Irvine, Irvine, CA, United States; Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, United States
推荐引用方式 GB/T 7714	Shaner M.R.,Davis S.J.,Lewis N.S.,et al. Geophysical constraints on the reliability of solar and wind power in the United States[J],2018,11(4).
APA	Shaner M.R.,Davis S.J.,Lewis N.S.,&Caldeira K..(2018).Geophysical constraints on the reliability of solar and wind power in the United States.Energy & Environmental Science,11(4).
MLA	Shaner M.R.,et al."Geophysical constraints on the reliability of solar and wind power in the United States".Energy & Environmental Science 11.4(2018).