Monday, September 22nd, 2014 - 5:19 pm 
(Arizona time)

Orientation and shading issues

These are photovoltaic powered restrooms. The view is to the Northeast at about noon in February. The photovoltaic module provides power for operating a vent fan for a composting toilet. Unfortunately, the photovoltaic module on the right restroom is facing West and as a result gets very little sunshine. In addition, the shadow cast by the vent pipe is shading the module and further reducing the output.

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Red and Blue Equals Green

George P. Shultz served as U.S. Secretary of State, Treasury and Labor under two GOP Presidents. Today, Shultz is co-chair of Stanford University’s Hoover Institution task force on energy policy.

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