User:Cjs44

Hi! My name is Costi Shami, and I'm a student at Duke University!

The Grand Challenge that appealed to me the most was making solar energy more affordable, and I found this link when I was researching the topic in further detail:

[1], U.S. Department of Energy, Energy Efficiency and Renewable Energy, updated 16 June 2009, accessed 1 September 2009 (Make Solar Energy Economical)