Connect with us

Hi, what are you looking for?


Clean Power

Solar Paint Could Make Those White Roofs Even Better


U.S. Energy Secretary Steven Chu was on to something when he suggested we start painting our roofs white to fight climate change.

We’ll soon be able to use a specialized paint to collect rooftop solar energy, too. Could this be the answer to neighborhood Christmas light wars?

The stuff is called silicon ink, and the U.S. National Renewable Energy Laboratory says that solar cells using the technology have “demonstrated a record 18 percent conversion of efficiency,” according to

Innovalight Inc. is working with JA Solar Holdings Limited to commercialize next-generation sun catchers that use the ink — basically silicon chemically converted into liquid. The solution can be printed onto any surface with an off-the-shelf industrial printer, the company says.

Innovalight says the process can result in highly efficient, ultra-thin solar cells, doubling production time compared to conventional technology.

The Fraunhofer Institute for Solar Energy Systems in Germany, the same name that brought us MP3s, also has verified the 18 percent conversion results.

Music to our ears?


(Image Credit: Innovalight)

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.


You May Also Like


This episode of CleanTech Talk is part two of a recent conversation I had with RK Equity cofounder Howard Klein. You can listen to...


The cost of lithium-ion batteries dropped a whopping 97% in just a short period, but that's not the end of the story.


Renewable fuel from air and water are on the menu for a supersonic, next-generation version of Air Force executive aircraft. Could that include Air...

Clean Power

It's only a matter of time before concentrating solar power slips into the industrial process heat field, if a new aerogel pans out.

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.