Journal ArticleDOI
Output Power Correlation Between Adjacent Wind Power Plants
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In this paper, the authors show that although very short-term wind power fluctuations are stochastic, the persistent nature of wind and the large number of turbines in a wind power plant tend to limit the magnitude of fluctuations and rate of change in wind power production.Abstract:
The National Renewable Energy Laboratory (NREL) started a project in 2000 to record long-term, high-frequency (1-Hz) wind power data from large commercial wind power plants in the Midwestern United States. Outputs from about 330 MW of installed wind generating capacity from wind power plants in Lake Benton, MN, and Storm Lake, Iowa, are being recorded. Analysis of the collected data shows that although very short-term wind power fluctuations are stochastic, the persistent nature of wind and the large number of turbines in a wind power plant tend to limit the magnitude of fluctuations and rate of change in wind power production. Analyses of power data confirms that spatial separation of turbines greatly reduces variations in their combined wind power output when compared to the output of a single wind power plant. Data show that high-frequency variations of wind power from two wind power plants 200 km apart are independent of each other, but low-frequency power changes can be highly correlated. This fact suggests that time-synchronized power data and meteorological data can aid in the development of statistical models for wind power forecasting.read more
Citations
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Geostatistical Space-Time Models, Stationarity, Separability, and Full Symmetry
TL;DR: In this paper, the authors review recent advances in the literature on space-time covariance functions in light of the aforementioned notions, which are illustrated using wind data from Ireland, and suggest that the use of more complex and more realistic covariance models results in improved predictive performance.
ReportDOI
Implications of Wide-Area Geographic Diversity for Short- Term Variability of Solar Power
TL;DR: Mills et al. as mentioned in this paper investigated the implications of wide-area geographic diversity for short-term variability of solar power in the U.S. under contract No. DE-AC02-05CH11231.
Journal ArticleDOI
Calibrated Probabilistic Forecasting at the Stateline Wind Energy Center: The Regime-Switching Space-Time (RST) Method
TL;DR: In this paper, the authors proposed a regime switching space-time (RST) model to forecast wind power and wind speed at wind farms in the U.S. Pacific Northwest.
Journal ArticleDOI
Power output variations of co-located offshore wind turbines and wave energy converters in California
TL;DR: In this article, the authors investigated the electric power generation of co-located offshore wind turbines and wave energy converters along the California coast and found that wind and wave farms generate less variable power output than a wind or wave farm operating alone.
Journal ArticleDOI
The Potential of Intermittent Renewables to Meet Electric Power Demand: Current Methods and Emerging Analytical Techniques
TL;DR: A framework for understanding the body of literature that has been devoted to the behavior and reliability of intermittent renewables is provided and the results of grid integration studies into decarbonization strategy analyses are discussed.
References
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Book
Wind Energy Resource Atlas of the United States
TL;DR: In this article, the authors present an atlas of wind energy resources for the United States and its territories and indicate general areas where a high wind resource may exist, which is valuable to wind energy developers and potential wind energy users because it allows them to choose a general area of estimated high wind resources for more detailed examination.
Journal ArticleDOI
Optimizing the Geographic Distribution of Wind Plants in Iowa for Maximum Economic Benefit and Reliability
Michael Milligan,Tom Factor +1 more
TL;DR: In this paper, the authors find the best way to distribute wind-generating capacity among several sites by using an electricity-production, cost and reliability model, and calculate this benefit in terms of reduction in the fuel cost of conventional generators.
Journal ArticleDOI
Short-Term Power Fluctuations of Large Wind Power Plants
Yih-huei Wan,Demy Bucaneg +1 more
TL;DR: In this article, the National Renewable Energy Laboratory (NREL), in cooperation with Enron Wind, has started a project to record output power from several large commercial wind power plants at the 1-Hertz rate.
Journal ArticleDOI
The statistical smoothing of power delivered to utilities by multiple wind turbines
G. McNerney,R. Richardson +1 more
TL;DR: In this article, a relationship for estimating the spectrum of the power delivered from multiple wind turbines from the spectrum delivered by a single wind turbine is derived. But it is assumed in the derivation that the wind power time series of each turbine is stationary and can be related to time series or neighboring wind turbines by a spatial coherence function.
The statistical smoothing of power delivered to utilities by multiple wind turbines. Discussion
TL;DR: In this article, a relationship is derived for estimating the spectrum of the power delivered from multiple wind turbines from the spectrum delivered by a single wind turbine, assuming that the wind power time series of each wind turbine is stationary and can be related to timeseries of neighboring wind turbines by a spatial coherence function.