"If you let your computer idle while you are away or asleep, you might consider to allow Harvard and IBM to use it to do calculations for the Clean Energy Project.From http://www.reuters.com/
Due to find new ways to create more efficient solar photovoltaïc panels and later of batteries, this project already has over a million people donating some of their computer time.
This could shorten an estimated calculation time of 22 years to only two." [Emphasis mine]
"Scientists at Harvard University and IBM are hoping to harness the power of a million idle computers to develop a new, cheaper form of solar power that could revolutionize the green energy world...
...Harvard scientists are hoping the project will allow it to discover a combination of organic materials that can be used to manufacture plastic solar cells that are cheaper and more flexible than the silicon-based ones typically used to turn sunlight into electricity."