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New Survey Finds More Countries Turning to Macro Grids to Enable Energy Transition 
U.S. Transmission Development Lags Behind China, European Union, South America and India
 
WASHINGTON, D.C. (NOVEMBER 18, 2020) A global survey of Macro Grids conducted by Iowa State University and released today shows countries around the world are scaling up their electric grids in order to tap low-cost domestic and foreign renewable resources, grow their economies, and strengthen security.

Sponsored by Americans for a Clean Energy Grid as part of the Macro Grid Initiative, Macro Grids in the Mainstream: An International Survey of Plans and Progress examines whether, and to what extent, other countries are planning and building Macro Grids, defined as a network of ultra-high voltage regional and interregional transmission lines, expansive in geographical scope. 

“This report shows that interregional transmission Macro Grids are a worldwide phenomenon,” said James McCalley, Distinguished Professor and London Chair Professor of Power Systems Engineering at Iowa State University. “The U.S. is lagging behind, yet, it has every reason to catch up since Macro Grids are highly effective in decreasing the cost of electric energy throughout the nation for any portfolio of resources, providing grid reliability, resilience, and adaptability, while facilitating the integration of renewables which are not only carbon-free but are today’s least-cost generation technologies.”

Interest in interregional transmission and Macro Grids (sometimes called “supergrids”) has grown worldwide, according to the report. China, the European Union, South America and India are all investing in large-scale transmission infrastructure. The report shows the United States lagging far behind other countries in planning and building these networks, beneficial for reliability and resilience and necessary for the cost-effective integration of new wind and solar energy projects.

Key Report Findings Include: 
  • Macro Grids and high-voltage interregional transmission connections are either already in place, under development or being considered almost everywhere in the world.
  • China has recently completed five times more high-voltage interregional transmission than Europe, and over 80 times more than the U.S.
  • The European Union is planning and building high-voltage transmission to support the development of offshore wind in the northern seas.
  • The U.S. should review its policies to address current challenges to interregional transmission and Macro Grid development.
Download the Full Report

Americans for a Clean Energy Grid (ACEG) is the only non-profit broad-based public interest advocacy coalition focused on the need to expand, integrate, and modernize the North American high-voltage grid.

ACEG brings together the diverse support for an expanded and modernized grid from business, labor, consumer and environmental groups, and other transmission supporters to support policy which recognizes the benefits of a robust transmission grid.

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