Easing concerns about pollution from manufacture of solar cells

Feb 25, 2008

In a finding that could help ease concerns about the potential environmental impact of manufacturing solar cells, scientists report that the manufacture of solar cells produces far fewer air pollutants than conventional fossil fuel technologies. Their report, the first comprehensive study on the pollutants produced during the manufacture of solar cells, is scheduled for the March 15 issue of the ACS' Environmental Science & Technology.

Solar energy has been touted for years as a safer, cleaner alternative to burning fossil fuels to meet rising energy demands.

However, environmentalists and others are increasingly concerned about the potential negative impact of solar cell (photovoltaic) technology. Manufacture of photovoltaic cells requires potentially toxic metals such as lead, mercury and cadmium and produces carbon dioxide, which contributes to global warming.

In the new study, Vasilis M. Fthenakis and colleagues gathered air pollution emissions data from 13 solar cell manufacturers in Europe and the United States from 2004-2006. The solar cells include four major commercial types: multicrystalline silicon, monocrystalline silicon, ribbon silicon, and thin-film cadmium telluride.

The researchers found that producing electricity from solar cells reduces air pollutants by about 90 percent in comparison to using conventional fossil fuel technologies.

Source: ACS

Explore further: Looted and leaking, South Sudan's oil wells pose health risk

add to favorites email to friend print save as pdf

Related Stories

Magnetic nanoparticles enhance performance of solar cells

Feb 25, 2015

Magnetic nanoparticles can increase the performance of solar cells made from polymers - provided the mix is right. This is the result of an X-ray study at DESY's synchrotron radiation source PETRA III. Adding ...

Recommended for you

Music festivals go cleaner, greener

9 hours ago

Every summer, tens of thousands of people across Australia revel in live outdoor music, staying for a day or pitching their tents for a weekend. When the music dies, however, what's left may be less appealing ...

Did climate change help spark the Syrian war?

Mar 02, 2015

A new study says a record drought that ravaged Syria in 2006-2010 was likely stoked by ongoing manmade climate change, and that the drought may have helped propel the 2011 Syrian uprising. Researchers say ...

User comments : 2

Adjust slider to filter visible comments by rank

Display comments: newest first

Doug_Huffman
not rated yet Feb 25, 2008
Ahh, there are pollutants other than in air. I would not expect to find Pb, Hg, Cd in air at all.

Dilution is the solution to pollution. Each of these is derived from a dilute natural source, return them whence they cam.
Valentiinro
not rated yet Feb 26, 2008
If people were especially concerned about this it probably wouldn't be too hard to develop capturing technologies for these pollutants anyway. Much like the carbon capture ideas for coal power plants.

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.