Most solar panels are placed flat on rooftops because they are designed to harness solar energy when the sun is directly overhead. However, when the angle of the sun's rays hitting the panel changes, traditional panels quickly become less efficient.
To get around this inefficiency, scientists have been experimenting with a variety of new solar cell technologies, including nanoscale 3D structures to trap light and increase the amount of solar energy absorbed. However, a team of MIT researchers has taken a different approach by changing the shape of the solar panels. The researchers were able to develop a 3D shape that allows for 20 times greater power output, by building three different 3D modules for solar panels.
By going vertical, the panels were able to collect more sunlight when the sun is closer to the horizon, generating a more uniform output over time. This uniformity held even when seasons changed and even when parts of the panels were blocked by clouds or shadows.
http://futurism.com/mit-building-3d-solar-towers-far-achieved-phenomenal-results/
Paper: http://pubs.rsc.org/en/content/articlelanding/2012/ee/c2ee21170j#!divAbstract
To get around this inefficiency, scientists have been experimenting with a variety of new solar cell technologies, including nanoscale 3D structures to trap light and increase the amount of solar energy absorbed. However, a team of MIT researchers has taken a different approach by changing the shape of the solar panels. The researchers were able to develop a 3D shape that allows for 20 times greater power output, by building three different 3D modules for solar panels.
By going vertical, the panels were able to collect more sunlight when the sun is closer to the horizon, generating a more uniform output over time. This uniformity held even when seasons changed and even when parts of the panels were blocked by clouds or shadows.
http://futurism.com/mit-building-3d-solar-towers-far-achieved-phenomenal-results/
Paper: http://pubs.rsc.org/en/content/articlelanding/2012/ee/c2ee21170j#!divAbstract