Where Did the Carter White House's Solar Panels Go?

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The White House itself once harvested the power of the sun. On June 30, 1979, the Carter administration installed 32 panels designed to harvest the sun's rays and use them to heat water.

Here is what Carter predicted at the dedication ceremony: "In the year 2000 this solar water heater behind me, which is being dedicated today, will still be here supplying cheap, efficient energy…. A generation from now, this solar heater can either be a curiosity, a museum piece, an example of a road not taken or it can be just a small part of one of the greatest and most exciting adventures ever undertaken by the American people."

For some of the solar panels it is the former that has come to pass: one resides at the Smithsonian's National Museum of American History, one at the Carter Library and, as of this week, one will join the collection of the Solar Science and Technology Museum in Dezhou, China. Huang Ming, chairman of Himin Solar Energy Group Co., the largest manufacturer of such solar hot water heaters in the world, accepted the donation for permanent display there on August 5. After all, companies like his in China now produce some 80 percent of the solar water heaters used in the world today.

But they are based on the same technology developed here in the U.S. and once manufactured in Warrentown, Va., by InterTechnology/Solar Corp., the company behind the Carter panels.* Roughly three meters long, one meter wide and just 10 centimeters deep, the blue-black panels absorb sunlight to heat water piped through their innards. The Carter administration set a goal of deriving 20 percent of U.S. energy needs from such renewable sources by the turn of the century. Today, the U.S. gets a mere 7 percent of its energy from renewables, the bulk of that from the massive hydroelectric dams constructed in the middle of the 20th century. Solar thermal and photovoltaic technology combined provide less than 0.1 percent.

Read More Where Did the Carter White House's Solar Panels Go?: Scientific American