http://cleanet.org/clean/community/activities/GE.html#discussion http://cleanet.org/clean/community/activities/GE.html#post14332 Billy Goodman 1303147680 http://cleanet.org/clean/community/activities/GE.html#post14332 http://cleanet.org/clean/community/activities/GE.html#post14337 Depending upon how you have the students do the calculations, they may need to take solar cell efficiency into account - for instance they may need to do that to use insolation to calculate power from a solar panel, given its area. There's a NREL chart on the Wikipedia page at Solar cell efficiency that might be interesting for them to look at. They could consider the price of each technology that they study along its efficiency.]]> Karin Kirk 1303152000 http://cleanet.org/clean/community/activities/GE.html#post14337 http://cleanet.org/clean/community/activities/GE.html#post14342 Karin Kirk 1303233300 http://cleanet.org/clean/community/activities/GE.html#post14342