气候变化领域集成服务门户(CCPortal): Inter-annual variability of wind and solar electricity generation and capacity values in Texas

CCPortal

DOI	10.1088/1748-9326/aaf935
	Inter-annual variability of wind and solar electricity generation and capacity values in Texas
	Kumler A.; Carreño I.L.; Craig M.T.; Hodge B.-M.; Cole W.; Brancucci C.
发表日期	2019
ISSN	17489318
卷号	14 期号:4
英文摘要	As power systems shift towards increasing wind and solar electricity generation, inter-annual variability (IAV) of wind and solar resource and generation will pose increasing challenges to power system planning and operations. To help gauge these challenges to the power system, we quantify IAV of wind and solar resource and electricity generation across the Electric Reliability Council of Texas (ERCOT) power system, then assess the IAV of wind and solar electricity generation during peak-load hours (i.e. IAV of wind and solar capacity values) for the current ERCOT wind and solar generator fleet. To do so, we leverage the long timespan of four reanalysis datasets with the high resolution of grid integration datasets. We find the IAV (quantified as the coefficient of variation) of wind generation ranges from 2.3%-11% across ERCOT, while the IAV of solar generation ranges from 1.7%-5% across ERCOT. We also find significant seasonal and regional variability in the IAV of wind and solar generation, highlighting the importance of considering multiple temporal and spatial scales when planning and operating the power system. In addition, the IAV of the current wind and solar fleets' capacity values (defined as generation during peak-load hours) are larger than the IAV of the same fleets' capacity factors. IAV of annual generation and capacity values of wind and solar could impact operations and planning in several ways, e.g. through annual emissions, meeting emission reduction targets, and investment needs to maintain capacity adequacy. © 2019 The Author(s). Published by IOP Publishing Ltd.
英文关键词	capacity value; inter-annual variability; solar power; wind power
语种	英语
scopus关键词	Electric power generation; Emission control; Investments; Solar energy; Solar power generation; Wind power; Capacity value; Coefficient of variation; Electric reliability council of texas; Emission reduction targets; Interannual variability; Power system planning and operation; Seasonal and regional variabilities; Temporal and spatial scale; Electric power system planning; annual variation; electricity generation; emission control; energy planning; energy resource; investment; operations technology; solar power; wind power
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154608
作者单位	National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO 80401, United States; Arizona State University, P.O. Box 875706, Tempe, AZ 85287-5706, United States; University of Colorado Boulder, 425 UCB, Boulder, CO 80309, United States
推荐引用方式 GB/T 7714	Kumler A.,Carreño I.L.,Craig M.T.,et al. Inter-annual variability of wind and solar electricity generation and capacity values in Texas[J],2019,14(4).
APA	Kumler A.,Carreño I.L.,Craig M.T.,Hodge B.-M.,Cole W.,&Brancucci C..(2019).Inter-annual variability of wind and solar electricity generation and capacity values in Texas.Environmental Research Letters,14(4).
MLA	Kumler A.,et al."Inter-annual variability of wind and solar electricity generation and capacity values in Texas".Environmental Research Letters 14.4(2019).