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Title: The value of improved wind power forecasting: Grid flexibility quantification, ramp capability analysis, and impacts of electricity market operation timescales

Journal Article · · Applied Energy

The value of improving wind power forecasting accuracy at different electricity market operation timescales was analyzed by simulating the IEEE 118-bus test system as modified to emulate the generation mixes of the Midcontinent, California, and New England independent system operator balancing authority areas. The wind power forecasting improvement methodology and error analysis for the data set were elaborated. Production cost simulation was conducted on the three emulated systems with a total of 480 scenarios, considering the impacts of different generation technologies, wind penetration levels, and wind power forecasting improvement timescales. The static operational flexibility of the three systems was compared through the diversity of generation mix, the percentage of must-run baseload generators, as well as the available ramp rate and the minimum generation levels. The dynamic operational flexibility was evaluated by the real-time upward and downward ramp capacity. Simulation results show that the generation resource mix plays a crucial role in evaluating the value of improved wind power forecasting at different timescales. In addition, the changes in annual operational electricity generation costs were mostly influenced by the dominant resource in the system. Lastly, the impacts of pumped-storage resources, generation ramp rates, and system minimum generation level requirements on the value of improved wind power forecasting were also analyzed.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)
Grant/Contract Number:
AC36-08GO28308
OSTI ID:
1336896
Alternate ID(s):
OSTI ID: 1414629
Report Number(s):
NREL/JA-5D00-67360
Journal Information:
Applied Energy, Vol. 184, Issue C; ISSN 0306-2619
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 43 works
Citation information provided by
Web of Science

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Cited By (6)

Simulating wind power forecast error distributions for spatially aggregated wind power plants journal September 2019
A universal power-law model for wind speed uncertainty journal November 2017
Optimal energy storage sizing and offering strategy for the presence of wind power plant with energy storage in the electricity market
  • Aghajani, Afshin; Kazemzadeh, Rasool; Ebrahimi, Afshin
  • International Transactions on Electrical Energy Systems, Vol. 28, Issue 11 https://doi.org/10.1002/etep.2621
journal May 2018
Multi-Objective Optimal Capacity Planning for 100% Renewable Energy-Based Microgrid Incorporating Cost of Demand-Side Flexibility Management journal September 2019
Integrating high levels of variable renewable energy into electric power systems journal November 2017
Integrating High Levels of Variable Renewable Energy into Electric Power Systems report August 2017