Connect with us

Hi, what are you looking for?


Clean Power

GreenSun Develops Colorful Solar Panels That Don’t Need Direct Sunlight

Update (May 2011): a new type of semi-transparent, colored solar panels that can be used in place of windows, roofs, and walls has been developed by Qsolar.

Solar power comes in many forms, from rigid to thin film. The panels are shiny, gleaming and ready to harness the power of the sun.

They’re also usually silver. Yet they also come in colors, not just for looks, but for efficiency.

A Jerusalem company called GreenSun has developed bright-colored panels. Officials say the hues capture different parts of sun’s spectrum, and don’t need direct sunlight to work, according to National Geographic News.

The colored collectors are still in development, but the company says its panels will cost less than a buck per watt to manufacture, compared to more than $4 a watt for conventional solar.

The technology is based on concentrating visible and ultraviolet light without concentrating heat, which reduces the performance of conventional cells. GreenSun also says its panels only require 20 percent silicon, with a conversion rate of up to 20 percent, or up to twice as much as commercial panels now on the market.

The secret is the edges, The Economist explains.

“Traditional solar cells are made of thin sheets of the element covered by glass plates. In GreenSun’s cells, though, only the outer edges of the glass plates are covered by silicon, in the form of thin strips. The trick is to get the light falling on the glass to diffuse sideways to the edges, so that the silicon can turn it into electricity.”

GreenSun does this this by coating the glass “with a combination of dyes and sprinkling it with nanoparticles of a metal whose nature they are not yet willing to disclose,” according to the report.

If this works, it could brighten up the solar market in more ways than one.

(Image Credit: GreenSun Energy)

Appreciate CleanTechnica’s originality? Consider becoming a CleanTechnica Member, Supporter, Technician, or Ambassador — or a patron on Patreon.
Have a tip for CleanTechnica, want to advertise, or want to suggest a guest for our CleanTech Talk podcast? Contact us here.
Written By

is typing about issues in the Great Lakes, from advanced biofuels to zero-emission vehicles. Jeff is an environmental journalist and social media evangelist based in Michigan, where the summers are short, the winters are cold, and the stories are plentiful.


#1 most loved electric vehicle, solar energy, and battery news & analysis site in the world.


Support our work today!


Power CleanTechnica: $3/Month

Tesla News Solar News EV News Data Reports


EV Sales Charts, Graphs, & Stats


Our Electric Car Driver Report

30 Electric Car Benefits

Tesla Model 3 Video

Renewable Energy 101 In Depth

solar power facts

Tesla News

EV Reviews

Home Efficiency

You May Also Like

Clean Power

A gas-and-electric utility dreams of a decarbonized future for the US with an assist from green hydrogen and long duration energy storage.

Clean Power

If all goes according to plan, the iconic coal state of West Virginia could lead the eastern US into the sparkling green geothermal energy...

Clean Power

The global LNG market is holding up for now, but Uniper's plans for a green ammonia and green hydrogen hub in Germany could shake...

Clean Power

A new venture fund called Energy Transition Ventures melds renewable energy expertise with fossil energy dollars, in Texas -- yes, that Texas.

Copyright © 2021 CleanTechnica. The content produced by this site is for entertainment purposes only. Opinions and comments published on this site may not be sanctioned by and do not necessarily represent the views of CleanTechnica, its owners, sponsors, affiliates, or subsidiaries.