With solar plants along vast stretches of the almost 2,000-mile U.S.-Mexico border on the Mexican side, a new high-voltage direct-current (HVDC) grid could be set up to transmit energy efficiently from that long, snaking array to population centers along the border. HVDC power lines lose exponentially less energy over long distances than traditional power lines. Cities that could immediately benefit include San Diego, Tijuana, Mexicali, Tucson, Phoenix, El Paso, Ciudad Juarez, San Antonio and Monterrey.As they point out, there's lots of strong sunlight along the border and cities on both sides of the border could benefit. Let's try it.
Link: Instead Of Trump’s Wall, Let’s Build A Border Of Solar Panels