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Futurist Solar Sunflower Panels Field Energizes Austin, Texas

A retail lot in Austin, Texas recently sprouted a stunning field of solar sunflowers that soak up the sun's rays to provide shade while generating a steady stream of renewable energy. Designed by public art team Harries/Heder, the installation consists of 15 flower-like solar photovoltaic panels located on a pedestrian and bike path between the village of Mueller and Austin's highway I-35. According to Harries/Heder, the flowers are "an icon for the sustainable, LEED certified Mueller Development and a highly visible metaphor for the energy conscious City of Austin."

When construction on Mueller, a mixed-use urban village in Austin, Texas first began nearly a decade ago, developers set up a number of environmental and aesthetic rules to safeguard the green spaces and keep the town from taking on an industrial feel. So when a massive retail lot was proposed, Mueller agreed to let it be built on one condition: loading docks behind the stores had to be covered up. Enter Sunflowers, An Electric Garden — Austin's largest public art installation.

In addition to providing shade for walkers and bikers, the solar flowers collect energy during the day to power the installation's blue LED lights at night. Leftover power is sent to the grid to offset the cost of maintaining the installation. If only every city required industrial sites to be covered up with similar art projects!

http://www.energievair.com/maximizer/Futurist--Solar-Sunflower-panels-Field--Energizes-Austin-Texass

Heliotrope Sun-tracking Solar Panels : Track the sunlight without any motors.

Product and Process

Plants in areas with short growing seasons need to make the most of their time above ground. This is their one chance to capture solar energy and convert it into sugars they need for energy. They do this by maximizing their exposure to  sunlight by a process called heliotropism. In 2009, a team of MIT students, honoring the source of their inspiration by calling themselves Heliotrope, won a prize for their design of a sun-tracking solar panel.

Solar panels are often immobile devices, aimed at the best angle and direction to catch sunlight throughout the day. However, because they don't move, they aren't as efficient as they could be. Those that do move to follow the sun use motors and electronic control systems, thus costing money to run, and making them unaffordable in many developing countries. Solar panels that track the angle of the sun can be 38 percent more efficient at generating power than fixed panels.

To make their solar panels responsive to sunlight, students Forrest Liau, Vyom Sharma, and George Whitfield used the difference in temperature between shaded and sunny areas to change the properties of the material supporting the solar photovoltaic cells. The solar panels are mounted at the top of a curved arch made up of two kinds of metal, such as aluminum and steel. The apparatus is expected to be durable enough to withstand the elements with little or no maintenance

The Biomimicry story

Plants in areas with short growing seasons need to make the most of their time above ground. This is their one chance to capture solar energy and convert it into the sugars they need for energy. They do this by maximizing their exposure to the sunlight by a process called heliotropism. In 2009, a team of MIT students, honoring the source of their inspiration by calling themselves Heliotrope, won a prize for their design of a sun-tracking solar panel.

Solar panels are often immobile devices, aimed at the best angle and direction to catch sunlight throughout the day. However, because they don't move, they can't work at highest efficiency throughout the day. Those that do move to follow the sun use motors and electronic control systems, thus costing money to run, and making them unaffordable in many developing countries. Solar panels that track the angle of the sun can be 38 percent more efficient at generating power than fixed panels.

To make their solar panels responsive to sunlight, students Forrest Liau, Vyom Sharma, and George Whitfield used the difference in temperature between shaded and sunny areas to change the properties of the material supporting the solar photovoltaic cells. The solar panels are mounted at the top of a curved arch made up of two kinds of metal, such as aluminum and steel. The apparatus is expected to be durable enough to withstand the elements with little or no maintenance.