A macrogrid for America (IMAGE) Iowa State University Caption This map shows how a macrogrid (the red lines) could cross the seam separating the Eastern and Western interconnections, allowing the entire country to share electricity, including Midwest wind energy and Southwest solar energy. Credit Map courtesy of the Interconnections Seam Study, the U.S. Department of Energy's National Renewable Energy Laboratory Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.