“Illumination came from sunlight reflected by a heliostat placed outside of a window on the fourth floor.”

“Each heliostat reflects the sun light and redirects it towards the top of the tower where a graphite bloc stores the heat.”

“A typical heliostat consists of a flat plane mirror and a curved parabolic mirror.”

“ObservatoryScope's heliostats and siderostats were specifically designed to utilize proven off-the-shelf components wherever possible.”

“The prototype array controller that is designed will then be partially implemented to control the demonstration heliostats.”

“They use either parabolic troughs or heliostats to direct sunlight onto a pipe containing a heat transfer fluid, such as oil.”