U.S. Department of Energy: Energy Efficiency and Renewable Energy

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DOE Releases Eastern Wind Integration and Transmission Study

January 20, 2010

The U.S. Department of Energy's National Renewable Energy Laboratory today released a major study of the technical, operational, and economic issues facing the integration of large amounts of wind energy into the power system. The Eastern Wind Integration and Transmission Study (EWITS), the largest study of its kind conducted in the United States to date, evaluates the future operational and integration impacts of up to 30% wind energy penetration into the power system in the study year 2024. The study encompasses the majority of the utilities in the Eastern Interconnection. The study also includes a high-level analysis of transmission needed to deliver the wind energy to load centers and a cursory analysis of carbon pricing impacts.

The study consists of three main parts: a wind resource assessment and wind plant siting study, a transmission study, and a wind integration study. The results of the study show that:

For more information about DOE's work on incorporating increasing amounts of wind energy into the power system while maintaining reliable grid operations, see the Wind and Hydropower Technologies Program's Renewable Systems Interconnection page.

DOE is sponsoring a similar study that is examining the integration of both wind and solar energy into part of the Western Interconnection. The Western Wind and Solar Integration Study will evaluate issues similar to EWITS and is scheduled for completion in mid-2010.

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Content Last Updated: 09/21/2011