Encontrados 17 documentos, a visualizar página 1 de 2
Flexibility chart: Evaluation on diversity of flexibility in various areas
Yasuda, Yoh; Ardal, Atle Rygg; Carlini, Enrico M.; Estanqueiro, Ana; Flynn, Damian; Gomez-Lázaro, E.; Holttinen, Hannele; Kiviluoma, J.This paper evaluates various aspects of flexibility in power systems worldwide within the multi-country study framework of IEA Wind Task 25, including grid components and actions which have been favoured for enhancing flexibility in different areas/countries/regions, and how TSOs/ISOs/ utilities intend to manage variable generation in their operating strategies. One methodology to evaluate the diversity of flex...
Wind integration cost and cost-causation
Milligan, Michael; Kirby, Brendan; Holttinen, Hannele; Kiviluoma, J.; Estanqueiro, Ana; Martín-Martínez, Sergio; Gomez-Lázaro, E.; Pineda, IvanThe question of wind integration cost has received much attention in the past several years. The methodological challenges to calculating integration costs are discussed in this paper. There are other sources of integration cost unrelated to wind energy. A performance-based approach would be technology neutral, and would provide price signals for all technology types. However, it is difficult to correctly formu...
Summary of experiences and studies for wind integration: IEA Wind Task 25
Holttinen, Hannele; Robitaille, André; Orths, Antje; Pineda, Ivan; Lange, Bernhard; Carlini, Enrico M.; O’Malley, Mark; Dillon, Jody; Tande, John OlavIEA WIND R&D Task 25 on “Design and Operation of Power Systems with Large Amounts of Wind Power” collects and shares information on wind generation impacts on power systems, with analyses and guidelines on methodologies. This paper summarizes the main results from the report published on January 2013 describing experience of wind integration as well as the most relevant wind power grid integration studies in th...
Wind and solar curtailment
Lew, Debra; Bird, Lori; Milligan, Michael; Speer, Bethany; Wang, Xi; Carlini, Enrico M.; Estanqueiro, Ana; Flynn, Damian; Gomez-Lázaro, E.High penetrations of wind and solar generation on power systems are resulting in increasing curtailment. Wind and solar integration studies predict increased curtailment as penetration levels grow. This paper examines experiences with curtailment on bulk power systems internationally. It discusses how much curtailment is occurring, how it is occurring, why it is occurring, and what is being done to reduce curta...
Transmission planning for wind energy in the United States and Europe: status a...
Smith, J. Charles; Osborn, D.; Zavaldi, R.; Lasher, W.; Gomez-Lázaro, E.; Estanqueiro, Ana; Trotscher, Thomas; Tande, J.; Korpas, M.; Van Hulle, FransThis paper provides an overview ofmajor transmission planning activities related to wind integration studies in the United States and Europe. Transmission planning for energy resources is different from planning for capacity resources. Those differences are explained, and illustrated with examples from several regions of the United States and Europe. Transmission planning for wind is becoming an iterative proce...
Experience and challenges with short-term balancing in european systems with la...
Soder, Lennart; Abildgaard, Hans; Estanqueiro, Ana; Hamon, Camile; Holttinen, Hannele; Lannoye, E.; Gomez-Lázaro, E.; O'Malley, Mark; Zimmermann, UweThe amount of wind power in the world is quickly increasing. The background for this development is improved technology, decreased costs for the units, and increased concern regarding environmental problems of competing technologies such as fossil fuels. Some areas are starting to experience very high penetration levels of wind and there have been many instances when wind power has exceeded 50% of the electri...
Energy storage for wind integration: hydropower and other contributions
Estanqueiro, Ana; Ardal, Atle Rygg; O'Dwyer, Ciara; Flynn, Damian; Huertas-Hernando, Daniel; Lew, Debra; Gomez-Lázaro, E.; Ela, Erik; Revuelta, JavierThe amount of wind power and other timevariable non-dispatchable renewable energy sources (RES) is rapidly increasing in the world. A few power systems are already facing very high penetrations from variable renewables which can surpass the systems’ consumption during no-load periods, requiring the energy excess to be curtailed, exported or stored. The limitations of electric energy storage naturally lead to th...
Variability of load and net load in case of large scale distributed wind power
Holttinen, Hannele; Kiviluoma, J.; Estanqueiro, Ana; Gómez-Lázaro, E.; Raw, Barry; Dobschinski, Jan; Meibon, Peter; Lannoye, Eamonn; Aigner, TobiasLarge scale wind power production and its variability is one of the major inputs to wind integration studies. This paper analyses measured data from large scale wind power production. Comparisons of variability are made across several variables: time scale (10-60 minute ramp rates),number of wind farms, and simulated vs. modeled data. Ramp rates for Wind power production, Load (total system load) and Net load (...
Currents of Changes
Holttinen, Hannele; Orths, Antje; Eriksen, Peter B.; Hidalgo, Jorge; Estanqueiro, Ana; Groome, Frank; Coughlan, Yvonne; Neumann, HendrikThe Power Systems in Denmark, Portugal, Spain, Ireland, and Germany have some of the highest wind penetrations in the world, as shown in Table 1. The management of the different power systems to date,with increasing amounts of wind energy, has been successful.There have been no reported incidents in which wind has directly or indirectly been a major factor causing operational problems on the system. In some are...
Impacts of large amounts of wind power on design and operation of power systems...
Holttinen, Hannele; Meibom, Peter; Orths, Antje; Lange, Bernhard; O'Malley, Mark; Tande, John O.; Estanqueiro, Ana; Gomez, Emilio; Soder, LennartThere are dozens of studies made and ongoing related to wind integration. However, the results are not easy to compare. IEA WIND R&D Task 25 on ‘Design and Operation of Power Systems with Large Amounts of Wind Power’ collects and shares information on wind generation impacts on power systems, with analyses and guidelines on methodologies. In the state-of-the-art report (October, 2007), and the fi nal report o...
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