Why not? Let sunshine warm up 700-mile border solar panels and families in neighborly US and Mexico

Instead Of building another costly Berlin Wall
(which has been pulled down anyway),
"Let’s Build a Border Of Solar Panels"!
(What a brilliant idea, so constructive in every measure!!)
It would attract investment, create jobs and neighborly neighbors
(How wise, and no waste – imagine a gigantic smile on Earth!).

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Dec 19, 2016
Instead of another Berlin Wall, Instead Of Trump’s Wall, Let’s Build A Border Of Solar Panels President-elect Donald Trump has repeatedly called for Mexico to build a wall between our countries. There is indeed a way that Mexico could create a barrier between the U.S. and Mexico, one constructed exclusively on the Mexican side, with substantial benefits for both countries and the planet: a solar border.

Sunlight in the northern deserts of Mexico is more intense than in the U.S. Southwest because of the lower latitude and more favorable cloud patterns. And construction and maintenance costs for solar plants in Mexico are substantially lower. Thus, building a long series of such plants all along the Mexican side of the border could power cities on both sides faster and more cheaply than similar arrays built north of the border.

Solar energy is already being generated at lower prices than those of coal. 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.

If one were to construct the equivalent of a strip of arrays one-third the width of a football field south of the entire U.S.-Mexico border, wider in some areas and narrower in others, with a wide berth allowed for populated areas and stretches of rugged terrain, sufficient energy might be produced to also supply Los Angeles, Las Vegas, Albuquerque, Dallas and Houston. For the U.S. cities, it would be a way to obtain cheaper and cleaner energy than they can from other sources.

January 8, 2007
Study says fence cost could reach $49 billion Lawmakers' estimate falls far short of total, research service says. The cost of building and maintaining a double set of steel fences along 700 miles of the U.S.-Mexico border could be five to 25 times greater than congressional leaders forecast last year, or as much as $49 billion over the expected 25-year life span of the fence, according to the nonpartisan Congressional Research Service. A little-noticed study the research service released in December notes that even the $49 billion does not include the expense of acquiring private land along hundreds of miles of border or the cost of labor if the job is done by private contractors -- both of which could drive the price billions of dollars higher.

France: A hillside covered by solar panels, in Les Mees, southern France. This apart from a solar power plant covering 50 hectares, the biggest one of the country.

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Photo courtesy wordlesstech, marmorinforma.mx, and GizModo / Shutterstock / Featureflash