In observance of Earth Day, the Western Pennsylvania Conservancy (WPC), the private nonprofit that owns, operates, and serves as lead steward of Frank Lloyd Wright’s Fallingwater, announced last month the installation of a 540-panel photovoltaic solar array at Bear Run Nature Reserve that will help to offset 100 percent consumed by the site’s superlatively photogenic main and guest houses. This, per the Conservancy, amounts to roughly a quarter of the total electricity used at the UNESCO World Heritage Site-inscribed facility that functions as one of the top architectural landmarks-slash-touristic draws in all of Pennsylvania. (For those with a shaky grasp of Pennsylvania geography, Fallingwater is located in
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